Basic Manufacturing process
Q. Which manufacturing process includes the powder metallurgy?
A. casting
B. forming and shaping
C. machining
D. joining
.
.Answer: B
Explanation: Forming and shaping process includes powder metallurgy. Powder metallurgy is a process in which material or shapes are made from or by using metal powders.
Q. Which of the following is not included in forming and shaping process?
A. rolling
B. forging
C. sheet forming
D. broaching
.
.Answer: D
Explanation: Only rolling, forging and sheet forming are included in forming and shaping process. Broaching is included in fabrication process.
Q. Expendable mold and permanent mold are the parts of ____ manufacturing process.
A. machining
B. casting
C. none of the mentioned
D. joining
.
.Answer: B
Explanation: In casting, we prepare a mould in which we pour liquid metal. Then we solidify the metal and make the product of desired shape with the help of pattern.
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Q. Casting includes grinding process.
A. true
B. false
.
.Answer: B
Explanation: This is false. Casting doesn’t includes grinding process. Machining process includes grinding process.
Q. Brazing is a type of metal joining process.
A. true
B. false
.
.Answer: A
Explanation: It is a metal joining process. It joints the metal by melting and flowing a filler metal into the joint. The adjoining metal has higher melting point compare to filler metal.
Q. Which of the following is included in machining process?
A. extrusion
B. soldering
C. drilling
D. coating
.
.Answer: C
Explanation: Drilling is included in machining process. For drilling, the drill is rotated with a downward pressure causing the tool to penetrate into the material.
Q. Which of the following processes are included in finishing?
A. honing and welding
B. polishing and lapping
C. coating and milling
D. molding and plating
.
.Answer: B
Explanation: Coating and plating are included in finishing .Welding is included in joining, molding is included in casting and milling is included in machining. Rest all( mentioned ) are included in finishing process.
Q. Machining process deals with drawing.
A. true
B. false
.
.Answer: B
Explanation: This is false. Forming and shaping type process include the process like drawing.
Q. Which of the following is not the type of finishing process?
A. diffusion bonding
B. burnishing
C. both diffusion bonding and burnishing
D. none of the mentioned
.
.Answer: A
Explanation: Only burnishing is an example of finishing process. Diffusion type bonding is included in the of process of joining.
Q. Which of the following is not the type of joining process?
A. adhesive bonding
B. brazing
C. soldering
D. none of the mentioned
.
.Answer: D
Explanation: Adhesive bonding, brazing and soldering all are thetypes of joining process. In adhesive bonding, adhesive are used to manufacture an assembly. Brazing and soldering are also the type of manufacturing process.
1Q. Which of the following is the type of permanent joining process?
A. welding
B. soldering
C. both welding and soldering
D. none of the mentioned
.
.Answer: C
Explanation: In welding and soldering, once the join has made, we have to break the joint to get different part. So, both welding and soldering are known as permanent joining process.
1Q. Which of the following is the type of temporary joining process?
A. brazing
B. mechanical joining
C. both brazing and mechanical joining
D. none of the mentioned
.
.Answer: B
Explanation: Brazing is the one type of permanent joining process and mechanical joining is the one type of temporary joining process because we can remove the joint with the help of equipments like some type of bolts and so on. Breaking of joint is not necessary in this case.
1Q. In ____type of manufacturing process, material is wasted. It is in the form of chips.
A. machining process
B. casting process
C. joining process
D. forming and shaping process
.
.Answer: A
Explanation: In machining process, some raw material is wasted in or in order to perform different operations like drilling, turning etc.
Q. Which type of metal is used in casting process?
A. liquid
B. solid
C. gas
D. plastic
.
.Answer: A
Explanation: In casting, generally we used metal in liquid form so that it can be easily poured and then we solidified it.
Q. The casting can be defined as pouring of molten metal into a mould
and taking it out after it becomes vapor.
A. true
B. false
.
.Answer: B
Explanation: This is false.In casting, first we take metal in liquid form, Then we pour it and after it we let it to solidify and then we take it out.
Q. Which of the following is the component of foundry sand?
A. river sand
B. clay
C. moisture
D. all of the mentioned
.
.Answer: D
Explanation: These all are the components of foundry sand. Permeability is the important property for sand casting and this property is totally related with the foundry sand.
Q. Which of the following component withstand the high temperature in
casting process?
A. clay
B. moisture
C. silica
D. water
.
.Answer: C
Explanation: Silica has a property to withstand high temperature. Silica sand is taken out by crushing sandstone. It is mostly used because of its great abundance.
Q. Why the porous structure provided by the silica is necessary in casting process?
A. for the escape of gases
B. for the escape of vapors
C. for the escape of both gases and vapors
D. none of the mentioned
.
.Answer: C
Explanation: Permeability is the important factor for sand casting. If we do not allow gases and vapor to escape from the mould it can damage the casting pattern and can also weaken the strength of the material. Silica allows the escape of gases and vapor and that’s why it is necessary to provide this porous structure.
Q. The upper portion of the casting flask is known as cope.
A. true
B. false
.
.Answer: A
Explanation: The upper portion of casting flask is known as cope where as lower portion of casting flask is known as drag.
Q. Chills are used to increase the heating rate of metal..
A. true
B. false
.
.Answer: B
Explanation: This is false. Chills are generally used to increase the cooling rate of the metal..
Q. Which of the following provide cohesion among the sand particles?
A. clay and moisture
B. clay and silica
C. moisture and silica
D. none of the mentioned
.
.Answer: A
Explanation: Silica withstand the high temperature while clay and moisture provide cohesion. So among three pairs, pair of clay and moisture is the right answer.
Q. Which of the following component gives the necessary plasticity to sand?
A. silica
B. clay
C. moisture
D. all of the mentioned
.
.Answer: B
Explanation: Clay is also used to give plasticity to sand. Clay gives plasticity to sand in order to shape the mould.
Q. The mould material used for moulding is a granite.
A. true
B. false
.
.Answer: B
Explanation: The mould material used for molding is a foundry sand. In mould, inner sand is finer known as facing sand and outer sand is known as baking sand.
Q. In forging process, metals are shaped by _____
A. impact
B. cohesion
C. tense
D. none of the mentioned
.
.Answer: A
Explanation: Forging is a manufacturing process which shapes the metal with the help of localized compressive force. It shapes metal with impact force.
Q. Which method is considered as one of the oldest methods of giving required shapes to the metals ?
A. casting
B. forging
C. forming
D. none of the mentioned
.
.Answer: B
Explanation: Experts considered forging as the oldest method of giving required shapes. For a long time, this forging was used by the smith with hammer. After that, this method was cam into picture in industries.
Q. Smithy forging can also be termed as open die forging.
A. true
B. false
.
.Answer: A
Explanation: This is true. It gives greater strength and also chances of voids are reduced in this type of forging.
Q. Which of the following is the example of impact pressure forging ?
A. striking a blow
B. shaping by press
C. all of the mentioned
D. none of the mentioned
.
.Answer: A
Explanation: Striking a blow is an example of impact pressure and shaping by press is an example of squeeze pressure forging.
Q. Cold forging is also known as simply forging.
A. true
B. false
.
.Answer: B
Explanation: This is false. Hot forging is known as simply forging.
Q. Which type of forging is done by deforming the metal at room temperature?
A. cold forging
B. simply forging
C. hot forging
D. all of the mentioned
.
.Answer: A
Explanation: Cold forging is done by deforming the metal at room temperature. This is done by increasing the level of stress above the elastic limit.
Q. Hot forging is also known as simply forging.
A. true
B. false
.
.Answer: A
Explanation: Hot forging is also known as simply forging and metal is heated to the temperature(up to plastic temperature) in this process.
Q. The upset type of forging makes increment in the diameter of the workpiece.
A. true
B. false
.
.Answer: A
Explanation: This forging makes increment in the diameter of the workpiece by compressing its length. Engine parts, coupling, bolts etc. are produced with the help of upset forging.
Q. Which type of forging is done by blacksmith?
A. hand forging
B. machine forging
C. both hand forging and machine forging
D. none of the mentioned
.
.Answer: A
Explanation: Hand forging is done in the smithy shop. This hand forging is done with the help of hand tools or steam hammer.
Q. For which purpose, hand forging is used?
A. maintenance work
B. production of small articles tools
C. repair work
D. all of the mentioned
.
.Answer: D
Explanation: Hand forging has the limited application in above regions because accuracy of hand forging depends mainly upon the blacksmith.
Q. In which forging process, parts are heated in open hearth?
A. machine forging
B. hand forging
C. both hand forging and machine forging
D. none of the mentioned
.
.Answer: B
Explanation: In hand forging, parts are heated in open hearth because it is done in smithy job manually. Shaping is carried out with hand tools.
1Q. In which forging process, parts are heated in closed hearth?
A. machine forging
B. hand forging
C. hand forging and machine forging both
D. none of the mentioned
.
.Answer: A
Explanation: Heavy forgings are produced by presses and light forgings by hammer. In this, the squeezing action is carried entirely on the centre of the part.So, closed hearth is more preferable.
Q. Press forgings are churlish in surface.
A. true
B. false
.
.Answer: B
Explanation: Press forgings are smooth in surface to provide a closed tolerance in case of machine forging.
1Q. Roll forging is done with the help of______
A. cylindrical rolls
B. semi-cylindrical roll
C. both cylindrical and semi cylindrical rolls
D. none of the mentioned
.
.Answer: C
Explanation: Roll forging is done with the help of both cylindrical and semi cylindrical rolls. These both rolls contains one or more shaped grooves.
1Q. Cast iron is forgeable.
A. true
B. false
.
.Answer: B
Explanation: This is false. Brittle metal cannot be forged.
Q. Which type of process is also known as fabrication process?
A. casting
B. forming
C. joining
D. none of the mentioned
.
.Answer: C
Explanation: Joining process is also known as the fabrication process. In fabrication process, product is made from raw materials and not from ready made components.
Q. Which type of manufacturing process can fabrication process be termed?
A. primary
B. secondary
C. tertiary
D. none of the mentioned
.
.Answer: B
Explanation: Fabrication process is also known as secondary manufacturing process. Fabrication process doesn’t produce raw material. It produce products from raw materials. That’s why it is known as secondary process.
Q. Which of the following process is not included in fabrication process?
A. welding
B. riveting
C. pressing
D. surface finish
.
.Answer: D
Explanation: Welding, riveting and pressing are included in fabrication process, Where as surface finish is included in machining process.
Q. Which of the following pair is the part of fabrication process?
A. welding and metal removal
B. brazing and sintering
C. cohesion and sintering
D. all of the mentioned
.
.Answer: B
Explanation: Metal removal is the type of machining process and cohesion is included in casting process. Rest are included in fabrication process.
Q. Which of the following fabrication process is mainly responsible for the fabrication of very high pressure boilers and nuclear reactors?
A. welding
B. sintering
C. brazing
D. pressing
.
.Answer: A
Explanation: Invention of welding has made a revolution in the fabrication process. Complex fabrication processes are also possible because of welding.
Q. Which of the following is not the type of conventional welding process?
A. gas welding
B. friction welding
C. resistance welding
D. air welding
.
.Answer: B
Explanation: Only gas welding and resistance welding are the types of conventional welding. friction welding is the type of recent welding process.
Q. Which of the following is the type of gas welding?
A. atomic hydrogen arc welding
B. shielded metal arc welding
C. inert gas arc welding
D. none of the mentioned
.
Q. Spot welding and seam welding are the types of gas welding.
A. true
B. false
.
.Answer: B
Explanation: This is false. Spot welding and seam welding are included in resistance welding according to the classification of welding.
Q. Which of the following is the type of the recent welding process?
A. laser beam
B. friction
C. ultrasonic
D. all of the mentioned
.
.Answer: D
Explanation: These all are the types of recent welding process base on the classification of welding process. These all are high accurate welding process with better production rate.
Q. Friction welding is mostly used for rail and road work and joining heavily sections.
A. true
B. false
.
.Answer: B
Explanation: This is false. Thermit welding is used for rail and road work and joining heavily sections.
1Q. Pressure must be applied in welding process.
A. true
B. false
.
.Answer: B
Explanation: Its not necessary that pressure must be applied in welding process. Pressure may be applied or may not be applied in the process of welding.
1Q. Oxy acetylene welding and oxy-hydrogen welding are the examples of ____ welding.
A. gas
B. air
C. resistance
D. friction
.
.Answer: A
Explanation: These are the types of gas welding base on the classification of welding. Sometimes, this oxy acetylene welding is also known as oxyfuel welding.
Q. In which operation, motion of job is rotary and motion of cutting tool is forward translating?
A. turning
B. planning
C. milling
D. all of the mentioned
.
.Answer: A
Explanation: Turning is done when motion of job is rotary and motion of cutting tool is forward translating. In turning operation, metal is removed from the outer diameter of the surface. It is very basic operation.
Q. Which type of job motion is there in drilling operation?
A. rotary
B. translating
C. fixed
D. none of the mentioned
.
.Answer: C
Explanation: Motion of job is fixed in drilling operation. The drilling machine is one of the most important machine tool in workshop after lathe.
Q. In which type of operation, motion of cutting tool is translating?
A. drilling and milling
B. milling and turning
C. boring and drilling
D. turning and planning
.
.Answer: C
Explanation: Motion of cutting tool is translating in case of boring and milling. Boring is generally performed to enlarge the holes which are previously made and milling is generally performed to remove the material from the metal.
Q. In which type of operation, motion of cutting tool is rotary as well as translating?
A. planning
B. milling
C. drilling
D. turning
.
.Answer: C
Explanation: In drilling, both type of motion of cutting tool is necessary. For drilling, the drill is rotated with a downward pressure causing the tool to penetrate into the material.
Q. In drilling motion of job is rotary.
A. true
B. false
.
.Answer: B
Explanation: This is false. In drilling, motion of job is fixed.
Q. Motion of cutting tool is rotary in milling machine.
A. true
B. false
.
.Answer: B
Explanation: This is false. Motion of cutting tool is intermittent translating in milling operation.
Q. Which type of cutting tools have wide application on lathes?
A. single point
B. multi point
C. both single point and multi point
D. none of the mentioned
.
.Answer: A
Explanation: Single point cutting tools have wide application on slotting machines. Shear tools, boring tools, planner tools etc. are the examples of single point cutting tools.
Q. Which of the following is the example of multi point cutting tool?
A. milling cutter
B. broaching tool
C. both milling utter and broaching tool
D. none of the mentioned
.
.Answer: C
Explanation: Milling cutter and broaching tools use multi point cutting tool to perform their operations. In milling, material is removed as the work is fed against a rotating multipoint cutter. Broaching also remove material but high accuracy. Although its cost is high, it is largely used.
Q. In how many groups, cutting tools can be divided?
A. 2
B. 3
C. 4
D. none of the mentioned
.
.Answer: A
Explanation: Cutting tools can be classified in two groups : single point cutting tools and multi point cutting tools.
Q. Motion of job is forward rotary in broaching operation.
A. true
B. false
.
.Answer: B
Explanation: This is false. Motion of job is forward translating in broaching operation.
1Q. Which of the following is an example of non cutting shaping process?
A. turning
B. forging
C. drilling
D. milling
.
.Answer: B
Explanation: Only forging is an example of non cutting shaping process, while turning, drilling and milling are the examples of cutting shaping process.
1Q. Which of the following is the example of cutting shaping process?
A. knurling
B. forging
C. pressing
D. drawing
.
.Answer: A
Explanation: Only knurling is an example of cutting shaping process. Where as forging, pressing and drawing are the examples of non cutting shaping process.
1Q. The process of metal cutting is affected by the relative motion between the piece of work and the hard type edge of a cutting tool against the work piece.
A. true
B. false
.
.Answer: A
Explanation: The relative motion which is produced by the combination of rotary and translating movements either of work piece or of the cutting tool or of both affect the metal cutting process.
1Q. In how many groups, various metal working processes can be classified?
A. 2
B. 3
C. 4
D. none of the mentioned
.
.Answer: A
Explanation: Metal working process can be classified in two groups : as cutting shaping process and non cutting shaping process.
Q. Why metal removal process is costly?
A. more energy is required
B. some of the material is wasted
C. both more energy is required and some of the material is wasted
D. none of the mentioned
.
.Answer: C
Explanation: As we require more energy, cost will definitely increase and again some material is also removed(lost) in this process.
Q. In which machining process, removed metal is negligible?
A. surface finishing
B. metal removal
C. both surface finishing and metal removal
D. none of the mentioned
.
.Answer: A
Explanation: Metal which is removed, is more (can’t negligible) in case of metal removal process but in surface finishing metal removal is negligible.
Q. Dimension accuracy is not affected in metal removal process?
A. true
B. false
.
.Answer: B
Explanation: This is false. Accuracy of dimension is not affected in surface finishing process.
Q. Which of the following process is not grouped under metal removal process?
A. boring
B. milling
C. tumbling
D. rolling
.
.Answer: C
Explanation: Only boring and milling are grouped under metal removal process. Tumbling is the type of surface finishing process.
Q. Which of the following is not groped under the surface finishing process?
A. sawing
B. tapping
C. buffing
D. polishing
.
.Answer: A
Explanation: Only tapping, buffing and polishing are grouped under surface finishing process. Sawing is the type of metal removal process.
Q. Metal removal process gives poor contour on the compound.
A. true
B. false
.
.Answer: B
Explanation: This is false. Metal removal process gives poor contour on the compound.
Q. In how many groups, metal removal process can be classified?
A. 2
B. 3
C. 4
D. 5
.
.Answer: B
Explanation: Metal removal process can be classified as conventional machining, abrasive process and nontraditional machining.
Q. In which type of metal removal process, grinding is included?
A. conventional machining
B. abrasive process
C. nontraditional machining
D. none of the mentioned
.
.Answer: B
Explanation: As per the classification of metal removal process, it is included in abrasive process. When we remove metal with the help of single or multiple abrasive particle, the process is called abrasive process.
Q. ______ metal removal process includes milling.
A. conventional machining
B. abrasive process
C. nontraditional machining
D. none of the mentioned
.
.Answer: A
Explanation: As per the classification of metal removal process, it is included in conventional process. Conventional machines are machines which requires human efforts and that are not fully automated. Metal removal process need some human efforts.
Q. In which type of metal removal process, thermal energy is included?
A. conventional machining
B. abrasive process
C. nontraditional machining
D. none of the mentioned
.
.Answer: C
Explanation: It is included in nontraditional machining. Thermal energy is an energy which is generated from the heat like kinetic energy of molecule, chemical energy of particle and so on.
1Q. Which of the following is the type of nontraditional machining?
A. turning
B. drilling
C. milling
D. none of the mentioned
.
.Answer: D
Explanation: Turning, drilling and milling are the types of nontraditional machining. Drilling means make a hole by using drilling machine and milling machine is a machine tool that removes metal as the work is fed against multipoint cutter. Turning is basic operation generally carried out on lathe machine.
1Q. In which metal removal process, material is removed by particles?
A. conventional machining
B. abrasive process
C. nontraditional machining
D. none of the mentioned
.
.Answer: B
Explanation: It can be understood from the definition of abrasive process. Like in abrasive water jet operation, material is removed by erosion.
1Q. In which process, various energy forms other than sharp cutting tool is used to remove materials?
A. conventional machining
B. abrasive process
C. nontraditional machining
D. none of the mentioned
.
.Answer: C
Explanation: It can be understood from the definition of nontraditional machining. Non-traditional machining is an operation which do not use shear as their primary sources of energy.
1Q. Metal removal process is also termed as primary production process.
A. true
B. false
.
.Answer: B
Explanation: This is false. Metal removal process is also termed as secondary production process.
1Q. Which of the following is not the type of nontraditional machining?
A. electrochemical process
B. chemical machining
C. mechanical energy process
D. none of the mentioned
.
.Answer: D
Explanation: Electrochemical process, chemical machining and mechanical energy process are all the types of nontraditional machining. Apart from these, photochemical, chemical milling, ultrasonic machining, laser beam machining etc. are also the type of nontraditional machines.
Q. Which of the following is included in basic machine tools?
A. lathe machine
B. production milling machine
C. production drilling machine
D. none of the mentioned
.
.Answer: A
Explanation: According to the definition of basic type of machine tools, lathe is basic machine tool while production milling machine and production drilling machines are special purpose drilling machines.
Q. Which type of machine tool is used for mass production of essentially small parts?
A. general purpose
B. special purpose
C. automatic screw cutting
D. none of the mentioned
.
.Answer: C
Explanation: The automatic type of screw cutting is used for this purpose. The automatic screw cutting is used because of its high accuracy.
Q. Which of the following does all the work of lathe machine?
A. turning centre of CNC type
B. machining centre of CNC type
C. turning centre of CNC type and machining centre of CNC type both
D. none of the mentioned
.
.Answer: A
Explanation: This type of turning centre does most of jobs of lathe. Lathe is a basic machine used for producing cylindrical machine. It is considered as father of machine tool.
Q. CNC machining centre does all the work_____
A. milling machine
B. drilling machine
C. both milling and drilling machine
D. none of the mentioned
.
.Answer: C
Explanation: CNC machining centre perform almost all jobs of milling and drilling machines. Drilling machine is used to produce holes and milling machines remove metal as the work is fed against a rotating multipoint cutter.
Q. Which of the following is the type of lathe machine?
A. capstan
B. turret
C. both capstan and turret
D. none of the mentioned
.
.Answer: C
Explanation: These both are categorized under the types of lathe machine. Turret and capstan lathe are generally used for the production of duplicate parts
Q. The development of machine tools (which are used for metal cutting) started from the invention of cylinder.
A. true
B. false
.
.Answer: A
Explanation: According to the history of machine tools, Egyptians were the first, who used that. They used the cylinder.
Q. DNC stands for_____
A. digital numerical control
B. direct numerical control
C. double numerical control
D. none of the mentioned
.
.Answer: B
Explanation: DNC is the abstract form of direct numerical control.
Q. Machine tools are economical for producing large rots.
A. true
B. false
.
.Answer: B
Explanation: This is false. Machine tools are only economical, when it is used for producing small number of pieces.
Q. The capacity and the efficiency of the universal machine tools are high.
A. true
B. false
.
.Answer: B
Explanation: This is false. It is comparatively low in case of universal machine tool.
Q. Machine tools can be classified as _____
A. geometric shape of the work piece
B. number of the work piece
C. function of the machine
D. all of the mentioned
.
.Answer: D
Explanation: These all are the aspects, which are responsible for the classification. In machine tools, lathe is the most important machine tool followed by drilling machine and shaper machine.
1Q. Revolver machine tool is an example of special purpose machine tool.
A. true
B. false
.
.Answer: A
Explanation: This is false. Revolver machine tool is an example of production machine tool.
1Q. The demand of instruments or parts, which are used for
purpose of measurements are more in NC machine tool.
A. true
B. false
.
.Answer: B
Explanation: This is false. The demand are less in case of NC machine tool.
