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ITI
Fitter
Fitter Set-2
Assembly
98

Assembly MCQ with Answers

98) What is the abrasive used for lapping accurately finishing very small holes?

Silicon carbide

Diamond

Boron carbide

Aluminium oxide

Answer is:

Diamond

Assembly MCQ with Answers

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Related Assembly MCQ with Answers

99) What is the purpose of lapping vehicles?

Regulate cutting action and lubricate surface

Medium effective operation

Decrease dimensional accuracy

Decrease cutting ability

Answer is:

Regulate cutting action and lubricate surface

100) Which lapping vehicle is used for lapping copper and its alloys?

Vegetable oil

Machine oil

Soluble oil

Petroleum jelly

Answer is:

Soluble oil

101) What is the temperature that change of structure to austenite starts at 723? in heat treatment process?

Lower critical temperature

Upper critical temperature

Melting temperature

Critical temperature

Answer is:

Lower critical temperature

102) What is the process if hot steel is cooled slowly the old structure is retained and it will have fine grains that makes it easily machined?

Annealing

Hardening

Tempering

Normalising

Answer is:

Annealing

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