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ISRO Technical Assistant Mechanical 2015
11

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

11) The hardness number 1 of Moh's scale is assigned to

Quartz

Talc

Topaz

Diamond

Answer is:

Talc

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

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Related ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

12) Surveying tapes are made of material having low coefficient of expansion and enough strength. The alloy used is

Silver steel

Hastelloy

Monel metal

Invar

Answer is:

Invar

13) A fluid is said to be ideal, if it is

Incompressible

Zero viscosity

Viscous and incompressible

Low density

Answer is:

Zero viscosity

14) An object having 10 kg mass weighs 5 kg on a planet. The value of 'g' at this planet is

5.0 m/square seconds

4.9 m/square seconds

10.2 m/sec

9.7 m/square seconds

Answer is:

4.9 m/square seconds

15) For a body floating in water, resultant pressure exerted by water acts at

Bottom surface of body

Centroid of portion of body under water.

All points on the surface of body

Centroid of body

Answer is:

Centroid of portion of body under water.

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

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