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Workshop Technology
Comments
Question
In a centrifugal casting method
Options
A. core is made of sand
B. core is made of ferrous metal
C. core is made of non-ferrous metal
D. no core is used
Correct Answer
no core is used
Workshop Technology problems
Search Results
1. In a bilateral system of tolerance, the tolerance is allowed on
Options
A. one side of the actual size
B. one side of the nominal size
C. both sides of the actual size
D. both sides of the nominal size
Show Answer
Scratch Pad
Discuss
Correct Answer: both sides of the nominal size
2. The centrifugal casting method, is used for casting articles of
Options
A. symmetrical shape about vertical axis
B. symmetrical shape about horizontal axis
C. irregular shape
D. non-ferrous metal only
Show Answer
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Discuss
Correct Answer: symmetrical shape about horizontal axis
3. A taper provided on the pattern for its easy and clean withdrawl from the mould is known as
Options
A. machining allowance
B. draft allowance
C. shrinkage allowance
D. distortion allowance
Show Answer
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Discuss
Correct Answer: draft allowance
4. The draft or taper allowance on casting is generally
Options
A. 1 to 2 mm/m
B. 2 to 5 mm/m
C. 5 to 10 mm/m
D. 10 to 15 mm/m
Show Answer
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Discuss
Correct Answer: 1 to 2 mm/m
5. Metal patterns are used for
Options
A. small castings
B. large castings
C. complicated castings
D. large scale production of castings
Show Answer
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Discuss
Correct Answer: large scale production of castings
6. The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.
Options
A. same as
B. less than
C. more than
Show Answer
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Discuss
Correct Answer: less than
7. Thread rolling is restricted to
Options
A. ferrous materials
B. ductile materials
C. hard materials
D. none of these
Show Answer
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Discuss
Correct Answer: ductile materials
8. In a die casting method, the molten metal is forced into mould under high pressure.
Options
A. Correct
B. Incorrect
Show Answer
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Discuss
Correct Answer: Correct
9. The machining allowance provided on patterns depends upon
Options
A. type of casting metal
B. size and shape of casting
C. method of casting used
D. all of these
Show Answer
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Discuss
Correct Answer: all of these
10. The cold chisels are made by
Options
A. drawing
B. rolling
C. piercing
D. forging
Show Answer
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Discuss
Correct Answer: forging
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