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ISRO Technical Assistant Mechanical 2015
9

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

9) Brass contains

70% copper and 30% zinc

70% copper and 30%tin

30% copper and 70%tim

60% copper and 40% tin

Answer is:

70% copper and 30% zinc

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

10) High speed steel (H.S.S) belongs to the category of

medium-carbon steel

high-carbon steel

alloy steel

stainless steel

Answer is:

alloy steel

Explanation:

High speed steel (H.S.S) belongs to the category of alloy steel.

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

Quartz

Talc

Topaz

Diamond

Answer is:

Talc

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

ISRO Technical Assistant Mechanical Question Paper - 2015 with Answer Key

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