ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

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

Answer is:

Talc

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

Answer is:

Invar

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

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

Answer is:

4.9 m/square seconds

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

Answer is:

Centroid of portion of body under water.