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KPSC WRD Assistant Engineer Mechanical 2017
71

KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key

71) The crystal structure of gamma iron is

bcc

fcc

orthorhombic

cubic structure

Answer is:

fcc

KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key

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Related KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key

72) The condition of unstable equilibrium of a floating body is where, M = metacentre, B = centre of buoyancy, G = centre of gravity

M is above G

B is above G

B is below G

M is below G

Answer is:

M is below G

73) Which of the following conditions clearly indicates the difference between a refrigerator and a heat pump ?

COP of refrigerator > 1 and COP of heat pump < 1

COP of refrigerator < 1 and COP of heat pump > 1

COP of refrigerator greater than equal to 1 and COP of heat pump lesser than or equal to 1

COP of refrigerator < or > 1 and COP of heat pump > 1

Answer is:

COP of refrigerator < or > 1 and COP of heat pump > 1

74) Babbit lining is used on brass or bronze bearings to

Increase bearing resistance

Increase compressive strength

Provide any friction properties

Increase wear resistance

Answer is:

Increase wear resistance

75) The resultant unbalanced force is minimum in reciprocating engines, when

"1/3" rd of reciprocating masses are balanced by rotating masses.

"1/2" nd of reciprocating masses are balanced by rotating masses.

"1/2" nd of reciprocating masses are balanced by rotating masses.

None of the above

Answer is:

"1/2" nd of reciprocating masses are balanced by rotating masses.

KPSC Water Resource Department Assistant Engineer Mechanical Question Paper 2017 with Answer Key

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