Exercise: Workshop Technology

Questions for: Workshop Technology

A jolt machine is used to
A:
ram the sand harder at the pattern face with decreasing hardness towards the back of the mould
B:
ram the sand harder at the back of the mould and softer on the pattern face
C:
produce uniform sand hardness throughout the mould
D:
produce uniform packing of sand in the mould
Answer: A
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Shrinkage allowance is made by adding to external dimensions and subtracting from internal dimensions.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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When a pattern is made in three parts, the __________ is known as a drag.
A:
bottom part
B:
middle part
C:
top part
D:
Answer: A
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The drawing down is a process of __________ the cross-section of a bar.
A:
increasing
B:
reducing
C:
D:
Answer: B
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Cores are used to
A:
form internal cavities in the casting
B:
improve mould surface
C:
form a part of a green sand mould
D:
all of these
Answer: D
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