1. Which of the following statement is true?
A. Casting is the replica of the object to be cast
B. Pattern is the replica of the casting object
C. Casting and the pattern are same things
D. Molten material is casted into the casting cavity
Answer:B
2. Which of the following carries the mould cavity where the metal is to be poured?
A. Casting
B. Pattern
C. Sand
D. Core
Answer:B
3. Which of the following is ‘not’ an allowance given to the pattern for casting?
A. Shrinkage
B. Draft
C. Hole
D. Machining
Answer:D
6. The quality of the final product is not dependent on _______________
A. Method of withdrawal of pattern
B. Allowance provided to the pattern
C. The complexity of the casting
D. The metal used in Casting
Answer:D
7. The life of a pattern is most likely to depend upon which of the following term?
A. Number of castings produced
B. Type of cooling rate of the casting
C. Size of the casting
D. Size of the pattern
Answer:A
8. What is the function of cores in the casting process?
A. To support the pattern
B. To provide differential cooling rates at specific portions
C. To make holes and cavities
D. For ease of flow of the molten material
Answer:D
9. Which of the following is ‘not’ an advantage of the usage of pattern in a casting of metals?
A. Using patterns to cast objects, less time is consumed for mass production
B. It is cost efficient and profitable for mass production
C. Production of the pattern requires extra effort to cast the object
D. Cores in the pattern could be used to decrease the amount of machining done for making cavities
Answer:D
10. A draft allowance is provided to ___________
A. All linear faces
B. Only the interior dimensions
C. Only the exterior dimensions
D. Only the dimensions that are perpendicular to the parting plane
Answer:D
11. Which of the following is not a part of the pattern at most times?
A. Mould cavity
B. Cope
C. Molten metal
D. Core
Answer:D
12. Which of the following does not serve the purpose of using patterns in sand casting?
A. Contain core prints if the casting requires a core and need to be made hollow
B. To give the exact shape and size (in addition to the allowances) to the casting as that of the final object
C. Reduces the cost of production while used in mass production
D. Sometimes used to carry the mechanism to melt the metal/material which is to be poured into the cavity
Answer:D
13. The function of a gated pattern is ___________
A. To produce small castings in mass production
B. To create castings of a very heavy mass
C. To create castings containing complex design
D. To create symmetrical castings
Answer:A
14. Which of the following factors affect the choice of a pattern at most times?
A. Size and complexity of the casting
B. Characteristics of castings
C. Type of molding and castings method to be used
D. Type of cooling rates to be provided
Answer:D
15. Which of the following sequence is in the correct order to prepare a cast using the sand casting method?
[1] Mould making [2] Clamping [3] Pouring [4] Cooling [5] Trimming [6] Removal
A. 1,3,2,4,6,5
B. 2,1,3,4,5,6
C. 1,2,3,4,5,6
D. 1,2,3,4,6,5
Answer:D
16. What is a function of a riser in a sand casting?
A. Provide good mobility to the molten metal
B. Prevent cavities due to shrinkage
C. To develop holes or hollow cavities in the casting
D. To provide differential cooling rates in specific areas of the casting
Answer:B
17. Runners, gates and risers are attached to the pattern to __________
A. Provide ease of cooling
B. Provide feed to the molten material
C. Provide design to the casting
D. Enhance the finishing of the casting
Answer:B
18. Which of the following is considered to be light wood?
A. Mahogany
B. Maple
C. Birch
D. White Pine
Answer:D
19. Steel is an alloy of which two elements?
A. Iron and Brass
B. Brass and aluminium
C. Iron and carbon
D. Carbon and aluminium
Answer:D
20. Which of the following is not a limitation of wooden patterns?
A. Get abraded easily
B. Absorb moisture
C. Difficult machining
D. Poor wear resistance
Answer:D
21. Metal patterns have a longer life than wooden pattern.
A. True
B. False
Answer:A
22. Which of the following is not a limitation of metal patterns?
A. Get rusted
B. Obtain rough surface finish
C. Expensive
D. Heavy
Answer:B
9. Which of the following patterns do not withstand rough handling?
A. Aluminium
B. Cast iron
C. Brass
D. Steel
Answer:A
23. Which of the following has the lowest melting point?
A. Cast Iron
B. Steel
C. White Metal
D. Brass
Answer:D
24. Which of the following is the heaviest?
A. White
B. Brass
C. Cast Iron
D. Aluminium
Answer:B
25. In Solid casting method, the resin mixture is kept for how much time for hardening and curing?
A. 1-2 hours
B. 2-3 hours
C. 3-4 hours
D. 4-5 hours
Answer:B
26. Core boxes are made out of which pattern?
A. Plaster pattern
B. Wax pattern
C. Metal patterns
D. Polystyrene patterns
Answer:A
27. What should the sulphur level in foam plastic be?
A. More than 1%
B. Between 0.5% to 1%
C. Less than 0.1%
D. Between 0.1% to 0.5%
Answer:D
28. Which of the following patterns has high compressive strength?
A. Plastic pattern
B. Wax pattern
C. Polystyrene pattern
D. Plaster pattern
Answer:D
29. Pattern cannot be constructed out of which of the following materials?
A. Wood
B. Wax
C. Oil
D. Metal
Answer:D
30. Which of the following is not a criteria for selecting pattern materials?
A. Method of moulding
B. Establishment of parting line
C. Chances of repeat orders
D. Complexity of the casting
Answer:B
31. Which among the following wood is most widely used for making patterns?
A. White Pine
B. Mahogany
C. Teak
D. Maple
Answer:A
32. Which of the following factor is not considered while selecting a kind of pattern?
A. Quantity of casting
B. Types of moulding method
C. Shape of the casting
D. Nature of moulding process
Answer:D
33. Which type of pattern should be used for making stuffing box of the steam engine?
A. One piece pattern
B. Split Pattern
C. Sweep pattern
D. Gated pattern
Answer:A
34. In a three piece pattern moulding arrangement, what keeps the alignment between the two parts of the pattern?
A. Cope
B. Drag
C. Dowel pins
D. Cheek
Answer:D
35. Piston rings are produced using which pattern?
A. Sweep pattern
B. Gated pattern
C. Match plate pattern
D. Loose piece pattern
Answer:D
36. Match Plate pattern consumes more time in moulding operations than loose piece pattern.
A. True
B. False
Answer:B
37. Which of the following pattern operation is cheapest?
A. Sweep pattern
B. Gated pattern
C. Match plate pattern
D. Skeleton pattern
Answer:D
38. Which pattern operation is used for manufacturing wheel rims?
A. Follow board pattern
B. Segmental pattern
C. Sweep pattern
D. Gated pattern
Answer:B
39. The skeleton pattern is filled with sand.
A. True
B. False
Answer:A
40. Parting line in the sand casting should be ___________
A. Simple and curved
B. Simple and straight
C. Irregular
D. Any type will not make a difference
Answer:B
41. The designing of a pattern does not include which of the following feature?
A. To locate the direction of the parting line and adjust the component accordingly
B. To determine regions and measurement of draft angles and radii of the sharp edges where allowances are to be given
C. To recognize and abolish the region of or where the defects could take place during casting
D. To 3D print the design for making the pattern
Answer:D
42. The preferred shape of a runner in a sand casting is ___________
A. Cylindrical
B. Spherical
C. Rectangular
D. Trapezoidal
Answer:D
43. Riser for a sand casting can be designed using ___________
A. Modulus method
B. Cained method
C. Naval research laboratory method
D. All of the mentioned
Answer:D
44. Rat tails and buckles in sand casting are caused by __________
A. Lower strength of the solidified metal
B. Lower refractoriness of the moulding sand
C. Lower strength of the moulding sand
D. Lower hardness of the moulding sand
Answer:D
45. Gimlet is which of the following tool?
A. Clamping tools
B. Drilling tool
C. Sawing tool
D. Wood planing tool
Answer:B
46. Which of the following is not a drilling or boring tool?
A. Brace
B. Counter sink bit
C. Auger bit
D. Hand vice
Answer:D
47. Which of the following is not a wood planing tool?
A. Block plane
B. Scrub plane
C. Spokeshave
D. Centre bit
Answer:D
48. A mallet comes under which type of tool?
A. Drilling tool
B. Clamping tool
C. Other pattern maker’s tool
D. Sawing tool
Answer:D
49. Which of the following pattern making machine works on two pulleys?
A. Circular saw
B. Band saw
C. Wood turning lathe
D. Jig saw
Answer:B
50. Which of the following pattern making machine makes wooden board?
A. Jointer
B. Drill press
C. Mortiser
D. Scroll saw
Answer:A
51. Disc Sander is an abrasive type of machine.
A. True
B. False
Answer:A
52. Which of the following is not measuring, marking or layout tools?
A. Caliper
B. Trisquare
C. T-bevel
D. Compass Saw
Answer:D
53. Which of the following tool is not used for clamping purpose?
A. C-clamp
B. Trammels
C. Bar clamp
D. Hand Vice
Answer:B
54. Which of the following is not a sawing tool?
A. Coping saw
B. Pinch dog
C. Panel saw
D. Bow saw
Answer:B
55. Lack of filleting of sharp corners in the casting design can cause hot spots in the casting.
A. True
B. False
Answer:A
56. Sharp corners in casting design may cause defects in the casting but it helps in strengthening of pattern material.
A. True
B. False
Answer:B
Answer:A
57. In horizontally parted moulds, a draft is required for vertical as well as for horizontal surfaces of a pattern.
A. True
B. False
Answer:B
58. In casting design, concave junctions are generally added to avoid the effect of sharp corners in the casting.
A. True
B. False
Answer:A
59. In pattern fillets, the size of a fillet is usually determined by its width.
A. True
B. False
Answer:B
60. A very large fillet in casting design also may cause shrinkage defects in the casting.
A. True
B. False
Answer:A
61. Sharp internal corner of the casting also causes the misrun defect in the casting.
A. True
B. False
Answer:B
62. To avoid sharp external corners in casting design, rounding of external edges is done in pattern making that termed as radii.
A. True
B. False
Answer:A
63. In pattern making, the term used for rounding out of external edges of the pattern is called as a fillet.
A. True
B. False
Answer:B
64. Draft is generally provided to make a clearance between the pattern and the mould during pattern extraction.
A. True
B. False
Answer:A
65. It is not necessary to avoid any sharp internal corners from casting design, as it causes very negligible problems.
A. True
B. False
Answer:B
66. Which of the following ranges show the approx range of finishing depth (in mm) required for finished casting?
A. 2 to 20
B. 20 to 30
C. 30 to 35
D. 35 to 40
Answer:A
67. For finishing allowance, great care is taken while adding extra material to the molten metal.
A. True
B. False
Answer:A
68. Which of the following parts is used to keep the casting in for reducing the finishing allowance?
A. Centrifuge
B. Burette
C. Drag flask
D. Conical flask
Answer:D
69. Which of the following technologies is used in metal casting for reducing the product development time?
A. Radiography
B. UV radiation
C. Eddy current coiling
D. Rapid prototyping
Answer:D
70. After providing the finishing allowance to the metal casting, it is not necessary to include shake allowance as it can be covered by finishing allowance.
A. True
B. False
Answer:B
71. A Fillet is provided in the finishing of a pattern which is very small for shallow castings.
A. True
B. False
Answer:A
72. In finishing of a pattern, fillets are provided to eliminate the stresses completely from the metal casting.
A. True
B. False
Answer:B
73. Why is it important to take careful measurements/steps while storing the pattern?
A. They loose their shape and size
B. They get rusted
C. They get warped
D. All of the mentioned
Answer:D
74. Temperature and humidity should be _________
A. Very low
B. Very high
C. Be controlled accordingly
D. Is not a matter of concern
Answer:D
75. Time to time cleaning of stored pattern should be done by ___________
A. Distilled water
B. Dry cleaning
C. Treated with proper chemical fluids
D. Vegetable oils
Answer:B
76. To ease the storing and assembly which of the following method is used by industries?
A. Colour pattern
B. Scanned copy/Photo
C. Coding and numbered
D. No measurements are taken
Answer:D
77. Which of the following method(s) is obsolete for storing fragile patterns?
A. They must be stored in kerosene
B. They must be stored in wax plated shelves
C. They must be stored in a wood wardrobe
D. They must be stored in foam
Answer:D
78. Finishing allowance to a pattern is generally provided to avoid various defects in the casting.
A. True
B. False
Answer:B
80. Finishing also includes removal of scales from the surface of the casting.
A. True
B. False
Answer: A
81. Subsequent machining for products finishing does not require extra material to the metal casting, as it removes negligible amount of material from the casting.
A. True
B. False
Answer: B
82. Which colour is given to the cast surfaces which are to be left not-machined?
A. Red
B. Blue
C. Black
D. Yellow
Answer: D
83. Which colour is given to loose pieces and seatings?
A. Red strip on yellow base
B. Yellow strip on red base
C. Black strip on yellow base
D. Yellow strip on black base
Answer: A
Check this: Metallurgical Engineering Books | Casting, Forming and Welding I Books
84. Which colour is given to core prints seats?
A. Red
B. Blue
C. Yellow
D. Black
Answer: D
85. Which colour is given to stop-offs or supports?
A. Yellow strip on black background
B. Red strip on yellow background
C. Black strip on yellow background
D. Yellow strip on red background
Answer: D
86. Which colour is given to parting surfaces?
A. Red
B. Black
C. Yellow
D. No colour
Answer: D
87. Which colour is provided on core prints for machined openings?
A. Black strips on yellow background
B. Yellow strips on black background
C. Red strips on yellow background
D. Yellow strips on black background
Answer:B
88. Which colour is given for surfaces, yet to be machined in cast surface?
A. Red
B. Black
C. Yellow
D. No colour
Answer:A
89. Pattern surfaces have black colour.
A. True
B. False
Answer:B
90. While imparting colours to the patterns, which colour scheme is followed?
A. Indian
B. American
C. Australian
D. Britain
Answer:B
91. Which of the following reason is not valid for pattern colouring?
A. Identification of main body
B. Visualising the to be machined surface
C. Indication of the type of metal
D. Locating parting surface
Answer:D
92. Green colour is used for machined cast surface.
A. True
B. False
Answer:B
93. To join pieces of timber in width and thickness is called?
A. Pattern filling
B. Mortising
C. Building-up
D. Brazing
Answer:D
94. Building-up process is used for making what?
A. Shields and boards
B. Dowels
C. Round pins
D. Belts
Answer:A
95. Which method is used for locking planks and bars?
A. Mortising
B. Building-up
C. Soldering
D. Brazing
Answer:A
96. Wooden workpieces of a pattern set come in which of the following type?
A. Triangular
B. Circular
C. Hexagonal
D. Pentagonal
Answer:B
97. Rectangular wooden workpiece of a pattern set is not used for making?
A. Shields
B. Boards
C. Boxes
D. Drum type elements
Answer:D
98. Design of pattern elements and method of jointing depend on?
A. Strength
B. Hardness
C. Ductility
D. Brittleness
Answer:A
99. What shape does fillet pieces have?
A. Convex
B. Concave
C. Convex and concave
D. Plane
Answer:B
100. What should the radius of fillet be to allow fillet sharp angles?
A. More than 15mm
B. Less than 10mm
C. Between 10mm and 15mm
D. More than 20mm
Answer:B
101. Mortising does locking at given angles.
A. True
B. False
Answer:A
