ISRO Technical Assistant Mechanical Question Paper

ISRO Technical Assistant Mechanical Question Paper - 2019 (Set-2) with Answer Key

1) Young's modulus is defined as the ratio

Answer is:

longitudinal stress and longitudinal strain

Explanation:

Young’s Modulus is defined as ratio of Normal Stress to Longitudinal Strain. Young’s Modulus is usually denoted with letter E. Young’s Modulus is also called as Modulus of Elasticity.

2) The ultimate strength of a sample is the stress at which the sample

Answer is:

breaks

3) Steel containing upto 0.15% carbon, is known as

Answer is:

dead mild steel

4) The helix angle for single helical gears ranges from

Answer is:

20 degree to 35 degree

5) The accuracy of micrometers, calipers, dial indicators can be checked by a

Answer is:

slip gauge

Explanation:

slip gauges are a system for producing precision lengths. The individual gauge block is a metal or ceramic block that has been precision ground and lapped to a specific thickness.