Mechanical Engineering - Workshop Technology

41. 

In a hot chamber die casting machine

A. melting pot is separate from the machine
B. melting pot is an integral part of the machine
C. melting pot may have any location
D. high temperature and pressure is used

Answer: Option B

Explanation:

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42. 

The electrodes used in spot welding have a tip of

A. stainless steel
B. aluminium
C. copper
D. brass

Answer: Option C

Explanation:

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43. 

Blanking and piercing operations can be performed simultaneously in a

A. simple die
B. progressive die
C. compound die
D. combination die

Answer: Option C

Explanation:

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44. 

A pattern maker's shrinkage rule considers

A. all pattern allowances
B. only shrinkage allowance
C. all materials to be cast
D. all materials of the pattern

Answer: Option B

Explanation:

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45. 

The tolerance produced by shell moulding process of casting is

A. +0.05 mm
B. ±0.2 mm
C. +0.5 mm
D. ±1 mm

Answer: Option B

Explanation:

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