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ISRO Technical Assistant Mechanical 2016
54

ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key

54) Thermal stress in a material is proportional to

Elastic modulus

Co-efficient of expansion

Temperature difference

All of these

Answer is:

All of these

Explanation:

Thermal stress in a material is proportional to
* Elastic modulus
* Co-efficient of expansion
* Temperature difference

ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key

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Related ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key

55) The behavior of mild steel under creep is a result of

(a) strain hardening

(b) annealing

(c) both A & B

None of these

Answer is:

both A & B

56) An helical spring has coil diameter 50 mm and is subjected to axial load W. Another spring has coil diameter 25 mm, but otherwise identical to the first. The deflection of second spring will be _____ of that of first spring.

(1/2)

(1/4)

(1/8)

None of these

Answer is:

(1/8)

ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key

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