Mechanical Engineering - Workshop Technology

1. 

The casting method adopted for ornaments and toys of non-ferrous alloys, is

A. permanent mould casting
B. slush casting
C. die casting
D. centrifugal casting

Answer: Option B

Explanation:

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2. 

In a cold 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. low temperature and pressure is used

Answer: Option A

Explanation:

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3. 

Structural sections such as rails, angles, I-beams are made by

A. hot rolling
B. hot drawing
C. hot piercing
D. hot extrusion

Answer: Option A

Explanation:

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4. 

The minimum size of a billet is 10 cm x 10 cm.

A. Agree
B. Disagree

Answer: Option B

Explanation:

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5. 

In welding magnesium with TIG arc welding, direct current with __________ is used.

A. straight polarity
B. reversed polarity

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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