36) Relief angle in a cutting tool generally varies from

1 to 2 degree

2 to 4 degree

5 to 15 degree

15 to 25 degree

Answer is:

5 to 15 degree

ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

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37) In Lewis equation for bending stress, gear tooth is considered as

Simply supported

Cantilever beam

Curved beam

None of the above

Answer is:

Cantilever beam

38) A uniform straight rod is subjected to axial load. Which of the following statement is correct?

It induces maximum shear stress on the transverse plane

It induces maximum normal stress on the plane inclined at 45 degree to axis of rod

It induces maximum shear stress on the plane inclined at 45 degree to axis of rod

It induces zero shear stress on any plane inclined to axis of rod

Answer is:

It induces maximum shear stress on the plane inclined at 45 degree to axis of rod

39) If the ratio G/E=0.4, the Poisson's ratio will be : ( G = Rigidity Modulus, E = Youngs Modulus)

0.2

0.25

0.3

0.33

Answer is:

0.25

40) Rockwell hardness test uses

Depth of penetration of indenter

Surface area of indentation

Projected area of indentation

Height of rebound

Answer is:

Depth of penetration of indenter

ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

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36) Relief angle in a cutting tool generally varies from

5 to 15 degree

ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

Related ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key

37) In Lewis equation for bending stress, gear tooth is considered as

Cantilever beam

38) A uniform straight rod is subjected to axial load. Which of the following statement is correct?

It induces maximum shear stress on the plane inclined at 45 degree to axis of rod

39) If the ratio G/E=0.4, the Poisson's ratio will be : ( G = Rigidity Modulus, E = Youngs Modulus)

0.25

40) Rockwell hardness test uses

Depth of penetration of indenter

ISRO Technical Assistant Mechanical Question Paper - 2017 with Answer Key