Mechanical Engineering - Workshop Technology

6. 

The process of decreasing the cross-section of a bar and increasing its length, is called

A. drawing down
B. upsetting
C. spinning
D. peening

Answer: Option A

Explanation:

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7. 

A casting defect which occurs due to improper venting of sand is known as

A. cold shuts
B. blow holes
C. shift
D. swell

Answer: Option B

Explanation:

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8. 

Swab is used for

A. smoothing and cleaning out depressions in the mould
B. cleaning the moulding sand
C. moistening the sand around the edge before removing pattern
D. reinforcement of sand in the top part of the moulding box

Answer: Option C

Explanation:

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9. 

The temperature of the inner luminous cone of neutral flame is about

A. 1000° C
B. 1250° C
C. 2100° C
D. 3200° C

Answer: Option D

Explanation:

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10. 

The metal patterns as compared to wooden patterns require less

A. shrinkage allowance
B. machining allowance
C. draft allowance
D. distortion allowance

Answer: Option C

Explanation:

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