200+ Most Repeated Exam MCQ's on Forming Process

MCQ’s on Forming Process

Q. Forming is a Process that changes the shape of the metal by changing its phase.
A. True
B. False
.

.Answer: B
Explanation: Process Forming is basically a term that covers many manufacturing Processes. In the metal forming Process, the shape of the material or metal is changed by performing an operation like hammering, squeezing, bending, pulling etc. without changing its phase. The raw materials used in the forming Process remained in a single solid phase.

Q. Which of the following components is mainly manufactured by performing metal forging?
A. Piston
B. Engine block
C. Connecting rod
D. Crankcase
.

.Answer: C
Explanation: Process Connecting rod is mainly manufactured by forging operation which is specifically known as hot forging Process, while parts like piston, crankcase and engine blocks are manufactured by a casting Process. In the forging Process, a hammer is used which strikes on the heated metallic part to get into the desired shape.

Q. The metal forging operation can only be performed by manual means.
A. True
B. False
.

.Answer: B
Explanation: Process Metal forging is a forming operation which usually performs hammering Process to shape the metal part. In the forging Process, the metal part is heated sufficiently, and then it is hammered by using a hammer which can be performed by manual means or by automation, depending on the scale of production.

Q. Which of the following metal forming Processes performs squeezing out of material through a hole?
A. Forging
B. Rolling
C. Drawing
D. Extrusion
.

..Answer: D
Explanation: Process Extrusion Process is a type of metal forming Process, in which the material is forced or squeezed out through a hole called die. This Process is very similar to squeezing out the toothpaste from the tube. This Process is mainly used for metals that are ductile in nature like copper, steel, aluminum and magnesium; this Process is also used for polymers.

Q. Metal forming is a Process in which the metal is deformed plastically to get into the desired shape.
A. True
B. False
.

.Answer: A
Explanation: Process In general, the metal forming is a large set of manufacturing Processes in which the metal is deformed plastically to get into the shape of the die geometry. The tools like dies and punches are mostly used in the Processes for the deformation of the material. For the plastic deformation, Stresses beyond the yield strength of the material is required.

Q. Which of the following Processes is not the type of bulk forming Process in the metal forming?
A. Bending
B. Rolling
C. Forging
D. Extrusion
.

.Answer: A
Explanation: Process Bulk forming is a deformation Process which results in a massive shape change of the material. The ratio of surface area to volume of the material is relatively small. It includes Processes like forging, extrusion and rolling. But the bending Process is a part of sheet metal forming which has surface area to volume ratio relatively high.

Q. Which of the following manufacturing Processes is mainly considered for producing the components of very high strength?
A. Casting
B. Forging
C. Extrusion
D. Rolling
.

.Answer: B
Explanation: Process Forging is a deformation Process in which the material is compressed between the dies by using the impact load or hydraulic load. This Process includes large forces that gradually or instantly deformed the material resulting in production of variety of high strength components like connecting rods, gears, jet engine turbine parts, aircraft parts etc.

Q. In metal forging Process, the gravity drop hammers are operated by a ram using steam or pressurized air.
A. True
B. False
.

.Answer: B
Explanation: Process In the metal forming Process, drop hammers are mainly of two types which are gravity drop hammer and power drop hammer. Gravity drop hammers are the tools which achieve their energy by the falling weight of a heavy ram. The force mainly depends on the height of the drop and the weight of the ram. And power drop hammers are in which a ram is accelerated by the steam or pressurized air.

Q. Rolling is a forming Process in which thickness of the metal plate is decreased by increasing its length.
A. True
B. False
.

.Answer: A
Explanation: Process Rolling is a metal forming Process in which the metal plate is squeezed between the two hard rollers. In the operation, the thickness is decreased and the length is increased as the volume of the metal is conserved. This method is mainly used for the production of thin metal plates which can be done by performing hot rolling or cold rolling, depending on the required mechanical properties.

Q. Which of the following metal forming Processes is best suitable for making the wires?
A. Forging
B. Extrusion
C. Drawing
D. Rolling
.

.Answer: C
Explanation: Process Drawing is a metal forming Process which is widely used for making the wires from round bars of metal. This Process is similar to extrusion Process, except that instead of pressure on the metal mass, in drawing, the wire is pulled from one side of the metallic round bar which results into the formation of thin wires. This Process is only suitable for ductile materials.

Q. Which of the following components are manufactured by the sheet metal forming Process?
A. Engine blocks
B. Connecting rods
C. Electric wires
D. Car bodies
.

..Answer: D
Explanation: Process Sheet metal forming is a Process which uses ductile materials like aluminium or low carbon steel to form lightweight products with versatile features. Car bodies are mainly manufactured by sheet metal forming by performing operations like shearing, slitting, cutting, or sawing of thin metal plates. This method is also used for making parts like beverage cans, metal desks, appliances etc.

Q. Which of the following Processes is not the type of metal forming Process?
A. Extrusion
B. Injection moulding
C. Forging
D. Drawing
.

.Answer: B
Explanation: Process Extrusion, forging and drawing Process are the main general types of metal forming Process, while the injection moulding is other Process which is basically a part of casting Process which includes the formation of parts by injecting the melt into a cavity by the help of a plunger. This method is not the part of metal forming because the phase change of metal occurs during the Process.

Q. Cold forming is a Process which works when the temperature of metal is above its re-crystallization temperature.
A. True
B. False
.

.Answer: B
Explanation: Process On the basis of temperature, metal forming mainly has two types which are cold forming and hot forming. Hot forming is defined as the mechanical working of metal at higher temperature above its re-crystallization temperature. And cold forming is a Process which works at temperature below the re-crystallization temperature of metal.

Q. Which of the following manufacturing Processes operates under the influence of external forces?
A. Metal forming
B. Powder metallurgy
C. Casting
D. Welding
.

.Answer: A
Explanation: Process In the metal forming Process, the raw material is converted into a desired shape by the application of external force. The metal work piece is subjected to plastic deformation which results in changing of shape and size of the work piece or specimen under the influence of external forces or stresses.

Q. Which of the following stresses is takes place during performing the wire drawing operation?
A. Tensile stress
B. Bending stress
C. Indirect compressive stress
D. Shear stress
.

.Answer: C
Explanation: Process Wire drawing is a forming Process in which a round metallic bar is pulled by a machine by generating indirect compressive stresses in the bar. This causes thinning of bar and results in the formation of thin wires that further used as a cable or for electricity purposes. Wire drawing is most suitable for ductile materials.

Q. Wire drawing Process is almost similar to deep drawing Process.
A. True
B. False
.

.Answer: B
Explanation: Process Wire drawing Process is quite different from deep drawing Process. In wire drawing, metallic bar is pulled to form wires, while in deep drawing Process; a flat metal sheet is converted into a concave shape part. This operation is basically performed by stretching the metal for which a blank-holder is used to clamp the blank on the die, and then a punch is used which pushes the metal sheet.

Q. Closed die forging Process is also called as impression die forging.
A. True
B. False
.

.Answer: A
Explanation: Process Closed die forging is also called as impression die forging. In this method, die consists of some internal impression that imparted to the work piece or specimen used for the forming. During full closing of die, impression is fully filled with the deformed billet and then further taken out of the impression to form flash.

Q. For the minimum metal loss, the flash-less forging is better than the impression die forging.
A. True
B. False
.

.Answer: A
Explanation: Process In flash-less forging, the material is fully restricted within the die, so no any flash is produced during the Process, which completely optimizes the material used. But in impression die forging, flash can be produced which is considered as scrap material that is removed from the formed part. So, the flash-less forging is better than the impression die forging for the minimum metal loss.

Q. Formability is a mechanical property which defined as the ability of solid metal to get converted into the liquid phase.
A. True
B. False
.

.Answer: B
Explanation: Process In the metal forming Processes, formability is an essential mechanical property which is defined as the ability of sheet metal or any material to undergo shape change without occurring of any failures like tearing or necking in the metal part. This property is vital and must be present in the material to be used for the metal forming Process.

Q. Shearing is a cutting operation in which material or work piece is subjected to shear stresses.
A. True
B. False
.

.Answer: A
Explanation: Process In the shearing Process, a proper sized piece of sheet metal is removed from a larger sheet by cutting operation in which the work piece is subjected to shear stresses. Shearing normally starts with small cracks which further grow and failure takes place. This method generates rough surfaces due to rough cutting.

Q. Which of the following can help in determining the behaviour of the material in metal forming?
A. Size of material
B. Shape of material
C. Stress-strain curve
D. Color of material
.

.Answer: C
Explanation: Process The behaviour of materials during metal forming can be determined by the stress-strain curve. The stress-strain curve for most of the materials is divided into an elastic region and a plastic region. In metal forming, the plastic region is the main consideration because the material is plastically deformed during the forming Process.

Q. A general stress-strain curve of any material represents the plasticity below the yield point.
A. True
B. False
.

.Answer: B
Explanation: Process In the stress-strain curve of any material exhibits plasticity or strain hardening above the yield point. And below the yield point, the area represents the elasticity of the material. Yield point is only present in the stress-strain curve of ductile materials. In brittle materials, yielding does not take place during the application of load; it directly shows the fracture failure.

Q. Flow stress is defined as the instantaneous value of stress required to continue the deformation of metal.
A. True
B. False
.

.Answer: A
Explanation: Process Flow stress is generally defined as the instantaneous value of stress which is required to continue the deformation of metal, which means to keep the material flowing. It is also defined as the yield strength of the material as a function of strain, or the strength that determines the forces required to complete a specific forming operation.

Q. The mechanical strength of the metal decreases due to the strain hardening of the metal.
A. True
B. False
.

.Answer: B
Explanation: Process At room temperature, the stress-strain curve of most of the materials indicates the deformation of metal. When deformation occurs, the mechanical strength increases due to the strain hardening. The stress needed for continuing the deformation should be increased to match this increase in strength.

Q. By keeping the metal at higher temperature, its ductility increases with the decrease in its strength.
A. True
B. False
.

.Answer: A
Explanation: Process By keeping the metal at higher temperature, both the strength and strain hardening of the metal decreases. And the ductility is increased at the higher temperature. These changes are very important and essential so that any deforming operation can be easily accomplished by lower forces at high temperatures.

Q. Better accuracy and surface finish is achieved by performing hot forming Process instead of the cold forming Process.
A. True
B. False
.

.Answer: B
Explanation: Process Cold forming is a metal forming Process that is performed at room temperature or slightly above. It has many advantages like better surface finish, high accuracy, high strength etc. And by performing hot forming operation, the surface finish of the part is very poor, which requires heavy machining to finish the metal part.

Q. In cold forming Process, the fuel cost is very less as compared to that in the hot forming Process.
A. True
B. False
.

.Answer: A
Explanation: Process In cold forming Process, not much heating is required, which generally saves the fuel costs and permits higher production rate of the metal parts. And in hot forming Process, the metal is subjected to very high temperature that requires lot of fuel to generate enough heat, which increases the overall cost of the hot forming operation.

Q. The extent of plastic deformation of material is mainly dependent on its grain structure.
A. True
B. False
.

.Answer: A
Explanation: Process In the metal forming Processes, the extent of plastic deformation of the material is mainly dependent on its grain structure. The deformation of metal also depends on the nature of bonding, surrounding temperature and defects like dislocation which might be present in the material during the metal forming Process.

Q. In general, the coefficient of friction is very low in the metal forming Processes.
A. True
B. False
.

.Answer: B
Explanation: Process In metal forming Processes, the coefficient of friction is very high. Due to this, it leads to a condition which is called as sticking friction. In this case, the surface shear stress increases the shear yield strength of the metal and the surfaces adhere to each other. In the forming operation, the metal beneath the surface experiences shear deformation.

Q. In metal forming Processes, the temperature rise also depends on the rate of deformation of the material.
A. True
B. False
.

.Answer: A
Explanation: Process In general, the temperature rise of any material is determined by using the stress-strain plot. The temperature rise also depends on the rate of deformation of the material. For slow deformation, the temperature rise of the metal is small as the heat induced gets dissipated through the surrounding air during the Process.

Q. Which of the following is not a type of rolling mill?
A. Two-high rolling mill
B. Cluster rolling mill
C. Separation rolling mill
D. Tandem rolling mill
.

.Answer: C
Explanation: Process Among two-high rolling mill, cluster rolling mill, separation rolling mill and tandem rolling mill. Separation rolling mill is not a type of rolling mills.

Q. In two high rolling mill, what is the direction of rolling of the two rollers?
A. Clockwise-anticlockwise
B. Clockwise-clockwise
C. Anticlockwise-Anticlockwise
D. Stationery-clockwise
.

.Answer: A
Explanation: Process In two high rolling mill, the direction of both the rollers is opposite to one another. Hence, one clockwise while other anti-clockwise.

Q. In two high rolling mill, if the direction of the rollers is reversed, what is it called?
A. Two high backward mill
B. Two high beneath mill
C. Two high reversing mill
D. Two high anti mill
.

.Answer: C
Explanation: Process In two high rolling mill, if the direction of the roller is reversed, then that system is called as, two high reversing mill.

Q. In three high rolling mill, what is the direction of rolling of the three rollers?
A. Clockwise-clockwise- clockwise
B. Clockwise-anticlockwise- anticlockwise
C. Clockwise-anticlockwise- clockwise
D. Anticlockwise-anticlockwise-anti clockwise
.

.Answer: C
Explanation: Process In three high rolling mill, the direction of the rollers in the top and bottom are the same, and the direction of the roller in the middle is opposite to the two.

Q. How many rollers are used in four high rolling mill?
A. 3
B. 4
C. 8
D. 14
.

.Answer: B
Explanation: Process In four high rolling mill, there are four rolls employed for roliing. The direction of two rollers is the same and the remaining two rollers roll in opposite directions.

Q. The desired shape and cross section of the billet is achieved in one pass.
A. True
B. False
.

.Answer: B
Explanation: Process The shape and the cross section shape of the billet, which is desired is not obtained in one single pass. One may have to use multiple pass to achieve desired cross section shape.

Q. Which of the following property does not improve in the hot rolling Process, of a cast?
A. Ductility
B. Shock resistance
C. Toughness
D. Boiling point
.

..Answer: D
Explanation: Process When a rolled stack is made, there is an improvement seen in the physical properties of the material, it does not affect the boiling point of the material.

Q. Which of the following articles cannot be made from rolling?
A. Rails
B. Helmets
C. Bars
D. Plates
.

.Answer: B
Explanation: Process Rolling is very useful for making articles like bars, plates and rails, but it cannot be used for making helmets. For making helmets, different methods of casting are used.

Q. Before beginning the Process, the ingots are heated up to what temperature?
A. 1000°C
B. 1200°C
C. 1400°C
D. 1600°C
.

.Answer: B
Explanation: Process The material ingot is known for sustaining high temperature and heat conditions. Before the Process begins, the ingot is fired using gas and brought up to a temperature of 1200°C.

Q. In hot rolling Process, velocity of material at exit is lowest.
A. True
B. False
.

.Answer: B
Explanation: Process In hot rolling Process, the velocity of material at entry is lower than the velocity at exit.

Q. During rolling Process, the thickness of workpiece squeezed is called what?
A. Shaft
B. Bore
C. Draft
D. Core
.

.Answer: C
Explanation: Process During rolling Process, the workpiece gets squeezed, causing the thickness of the workpiece to reduce. This reduced thickness is called a draft.

Q. With an increase in starting thickness, how would it affect the reduction?
A. Increases
B. Decreases
C. Won’t change
D. Not related
.

.Answer: B
Explanation: Process When the starting thickness of the workpiece gets increased, the reduction of correspondingly gets decreased.

Q. How is the draft calculated?
A. Difference between starting and final thickness
B. Sum of starting and final thickness
C. Product of starting and final thickness
D. Ratio of starting and final thickness
.

.Answer: A
Explanation: Process Draft is calculated as, the difference between the starting thickness of the workpiece and the final thickness of the workpiece.

Q. Which of the following has the most magnitude?
A. Slip velocity
B. Surface velocity
C. Entering velocity
D. Exiting velocity
.

..Answer: D
Explanation: Process Exiting velocity, among the given four velocities, that is slip velocity, surface velocity, entering velocity and exiting velocity, the exiting velocity is considered to be having most magnitude.

Q. Which of the following has least magnitude?
A. Slip velocity
B. Surface velocity
C. Entering velocity
D. Exiting velocity
.

.Answer: C
Explanation: Process None.

Q. When a metal is entering, how are the width and the length of the workpiece related to each other?
A. Direct relation
B. Inverse relation
C. Exponential relation
D. No relation
.

.Answer: B
Explanation: Process When the metal is entering, the width of the metal is inversely proportional to the length of the workpiece, that is, with an increase in the width of the metal, there would be a decrease in the length of the workpiece and vice versa.

Q. Roll velocity is lesser than exiting velocity.
A. True
B. False
.

.Answer: A
Explanation: Process Exiting velocity is has the most magnitude when compared to the other velocities, and is higher than the roll velocity.

Q. When a material is being rolled, the perpendicular force on the arc is called what?
A. Thickness force
B. Roll force
C. Angle force
D. Die force
.

.Answer: B
Explanation: Process There is a force perpendicular to the arc which is in contact when the rolls are pressurizing the material. This force is called a roll force.

Q. How would the draft be affected, if the radius of the roller is decreased?
A. Increase
B. Decrease
C. Won’t change
D. Not related
.

.Answer: B
Explanation: Process Radius of the roller is directly related with the draft. Hence, with a decrease in the roller radius, there is a decrease in the draft value and vice versa.

Q. There is no slipping between roller and workpiece.
A. True
B. False
.

.Answer: A
Explanation: Process There is a certain amount of slipping that is observed, between the roller and the workpiece. The magnitude of slipping is measured by the term called Forward slip.

Q. How is the strength of the material, which is to be rolled, reduced?
A. Rolling at low temperatures
B. Rolling at high temperatures
C. Treating with ozone
D. Treating with carbon
.

.Answer: B
Explanation: Process When the material to be squeezed is rolled at high temperatures, the strength of the material is found to decrease.

Q. When the material is entering the roller, what is the tension at the entry zone called?
A. Front tension
B. Above tension
C. Back tension
D. Beneath tension
.

.Answer: C
Explanation: Process When the material is entering the roller, the tension experienced at the entering zone is called as back tension.

Q. When the material is exiting the roller, what is the tension at the exit zone called?
A. Front tension
B. Above tension
C. Back tension
D. Beneath tension
.

.Answer: A
Explanation: Process None.

Q. What increases when the take up reel rotates at a high speed?
A. Front tension
B. Above tension
C. Back tension
D. Beneath tension
.

.Answer: A
Explanation: Process Among front tension, above tension, back tension and beneath tension, front tension is found to increase when the take up wheel rotates at a high speed.

Q. Which of the following is not a thread rolling machine?
A. Cylindrical die machine
B. Reciprocating flat die machine
C. Rotary planetary machines
D. Quick return motion machine
.

..Answer: D
Explanation: Process Among the following, a quick return motion machine is not any type of thread rolling machine, while the remaining are thread rolling machines.

Q. Which of the following is not a type of a pass?
A. Roll down pass
B. Starter pass
C. Leader pass
D. Finishing pass
.

.Answer: B
Explanation: Process Among the following types of passes, starter pass is not any type of pass, while the remaining three are different types of passes.

Q. Thread rolling has a lot of chip formation.
A. True
B. False
.

.Answer: B
Explanation: Process Thread rolling has it as one of its advantages, that there is no chip formation taking place, avoiding a lot of materials to be wasted.

Q. How many dies are used in reciprocating flat die machines?
A. 2
B. 3
C. 4
D. 5
.

.Answer: A
Explanation: Process In a reciprocating flat die machine, there are only two dies which are used, one of them is stationery, while the other is reciprocating.

Q. On what does the reciprocating die stroke depend on?
A. Temperature
B. Pressure
C. Thread diameter
D. Die radius
.

.Answer: C
Explanation: Process In a reciprocating flat die machine, the reciprocating die stroke depends upon the thread diameter, and there are 2 dies used in this apparatus, out of which, one is stationery.

Q. What is the general production rate in thread rolling?
A. 1000 pieces per minute
B. 2000 pieces per minute
C. 3000 pieces per minute
D. 4000 pieces per minute

Q. While rolling, material near the edges experience compression.
A. True
B. False
.

.Answer: B
Explanation: Process While rolling, due to the metal being continuous, the material present near the edges, experiences tensile force, that is a pulling force, and not pushing or a compression force.

Q. Which of the following cannot be regarded as a defect in rolled parts?
A. Inhomogeneous deformation
B. Surface defect
C. External cracking defect
D. Internal structure defect
.

.Answer: C
Explanation: Process Among the following defects in rolled parts, external cracking defect cannot be termed as a defect in rolled parts.

Q. Which of the following cannot be regarded as an internal structure defect?
A. Edge crack
B. Zipper cracks
C. Alligatoring
D. Quevering
.

..Answer: D
Explanation: Process Among the following internal structure defects, quevering is not any kind of a defect which can be regarded as an internal structure defect.

Q. Which of the following defect occurs because of the bending of rolls?
A. Zipper cracks
B. Folds
C. Laminations
D. Alligatoring
.

.Answer: A
Explanation: Process Wavy edges and zipper cracks can occur as defects in the material, if the rolls are bended, but not, folds or laminations or alligatoring. Their causes of occurrence are different.

Q. Which defect takes place if the reduction per mass is very low?
A. Zipper cracks
B. Folds
C. Laminations
D. Alligatoring
.

.Answer: B
Explanation: Process Folds are found to occur during the plate rolling if the reduction per mass is very low. And zipper cracks occur when the given rolls get bended.

Q. Incomplete welding may cause which of the following defect?
A. Folds
B. Laminations
C. Wavy edges
D. Zipper cracks
.

.Answer: B
Explanation: Process Because of incomplete welding in the blow holes and the pipes, small laminations occur, causing the strength of the material to reduce.

Q. Which defect is rupturing of sheet and following the roller path?
A. Folds
B. Laminations
C. Alligatoring
D. Wavy edges
.

.Answer: C
Explanation: Process When the material is compressed against the rolls, the sheet may get ruptured, without laterally, the width getting converted to length. Such a defect is called as alligatoring.

Q. In hot rolling, the temperature of working is uniform.
A. True
B. False
.

.Answer: B
Explanation: Process In hot working Processes, the temperature at which the work takes place is not uniform. There is change of temperature that takes place in between the Process when it is going on.

Q. In which of the following defects is a crown formed?
A. Wavy edges
B. Alligatoring
C. Folds
D. Laminations
.

.Answer: A
Explanation: Process A crown shape gets formed by the material, due to rolling loads. Crowns get formed in wavy edge defect.

Q. What is the open hearth called in which the metal is heated to its plastic state?
A. Roger’s forging
B. Black’s forging
C. Smith’s forging
D. Gold’s forging
.

.Answer: C
Explanation: Process The open hearth in which the metal is brought to its plastic state by increasing its temperature is called as Smith’s forging.

Q. Which of the following Process is done above the recrystallization temperature?
A. Hot forging
B. Cold forging
C. Impact forging
D. Gradual pressure forging
.

.Answer: A
Explanation: Process Among hot forging, cold forging, impact forging and gradual pressure forging, hot forging is done above the recrystallization temperature, but below the melting point.

Q. Which of the following method is used for manufacturing screws?
A. Hot forging
B. Cold forging
C. Impact forging
D. Gradual pressure forging
.

.Answer: B
Explanation: Process For the manufacturing of products like screws, pins or nails, the Process of hot forging or impact forging is not recommended. But, for this, cold forging is highly used.

Q. Which of the following method is used for manufacturing shafts?
A. Open die forging
B. Closed die forging
C. Impact forging
D. Flashless forging
.

.Answer: A
Explanation: Process While the manufacture of products like shafts, discs or rings, the method of closed die forging or impact forging or flashless forging is not advised, but open die forging is used.

Q. In which of the following Process, does the die have a concave surface?
A. Fullering
B. Edging
C. Cogging
D. Cavitising
.

.Answer: B
Explanation: Process Among the following Processes, that are fullering, edging, cogging and cavitising, edging is a Process in which, the die has a concave shape.

Q. Cold forging causes a reduction in strength of material.
A. True
B. False
.

.Answer: B
Explanation: Process Strain hardening is caused by cold forging, whereas hot forging results in a reduction of the strength of the material.

Q. In which of the following Process, does the die have a convex surface?
A. Fullering
B. Edging
C. Cogging
D. Cavitising
.

.Answer: B
Explanation: Process None.

Q. Which of the following operation is called incremental forging?
A. Fullering
B. Edging
C. Cogging
D. Cavitising
.

.Answer: C
Explanation: Process Among the following Process, cogging is the operation in which the surface is contoured a little. This Process is also called as incremental forging.

Q. Which of the following Process is used for making slabs?
A. Fullering
B. Edging
C. Cogging
D. Cavitising
.

.Answer: C
Explanation: Process Among the following Processes, cogging is a Process which is used for the manufacturing of Processes like blooms and slabs from the cast ingots.

Q. The cost of cold dies is high.
A. True
B. False
.

.Answer: A
Explanation: Process It is observed that the initial cost of dies in case of cold dies forging is comparatively high. Not just that, but this Process is also a little complex one.

Q. In which of the following Processes most noise is produced?
A. Press forging
B. Drop forging
C. Open die forging
D. Closed die forging
.

.Answer: B
Explanation: Process Among the following Processes, that is press forging, drop forging, open die forging and closed die forging, drop forging is a Process where more amount of noise occurs.

Q. In which of the following Processes most vibration is produced?
A. Press forging
B. Drop forging
C. Open die forging
D. Closed die forging
.

.Answer: B
Explanation: Process None.

Q. Which of the following hammers is also called a gravity hammer?
A. Board hammer
B. Air-lift hammer
C. Power drop hammer
D. Nail hammer
.

.Answer: A
Explanation: Process Among the following type of drop hammers, that is, board hammer, air-lift hammer, power drop hammer and nail hammer, board hammer is also called a gravity hammer.

Q. Which of the following hammers is also called a steam hammer?
A. Board hammer
B. Air-lift hammer
C. Power drop hammer
D. Nail hammer
.

.Answer: C
Explanation: Process None.

Q. Drop forging is the most accurate form of forging.
A. True
B. False
.

.Answer: B
Explanation: Process It has been observed that press forging is a Process which works more smoothly and is lot more accurate than drop forging.

Q. In drop forging, the anvil is lighter than the hammer.
A. True
B. False
.

.Answer: B
Explanation: Process In drop forging, the anvil is a lot heavier than the hammer. To absorb the blow caused by the hammer, the anvil is made 20 times heavier than the hammer.

Q. In which of the following Processes, life of dies is less?
A. Hot forging
B. Cold forging
C. Drop forging
D. Open die forging
.

.Answer: C
Explanation: Process In drop forging method, the forging is produced when there is a drop of the hammer on the metal. This causes the life of the hammer and the dies to be less.

Q. How much do the presses in press forging weigh?
A. 200-300 tonnes
B. 300-400 tonnes
C. 400-500 tonnes
D. 500-600 tonnes
.

..Answer: D
Explanation: Process The presses used for such forging Processes are manufactured for very heavy use. The presses which are generally used in press forging are of the capacity of 500 to 600 tonnes.

Q. Which of the following method is used for making wheel discs?
A. Drop forging
B. Press forging
C. Open die forging
D. Closed die forging
.

.Answer: B
Explanation: Process Among the following methods, press forging is one method that is the most widely and commonly used method for the manufacture of hollow bodies, wheel discs and panels.

Q. Which of the following method is used for making crankshafts?
A. Drop forging
B. Press forging
C. Open die forging
D. Closed die forging
.

.Answer: A
Explanation: Process For the making of products like car axles, crankshafts, leaf springs and jet turbines, the method of drop forging is used.

Q. In which of the following Processes most noise is produced?
A. Press forging
B. Drop forging
C. Open die forging
D. Closed die forging
.

Q. In which of the following Processes most vibration is produced?A. Press forging
B. Drop forging
C. Open die forging
D. Closed die forging
.