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RRB ALP Mechanical 2014
97

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

97) Minimum work in compressor is possible when the value of adiabatic index n is equal to

0.75

1

1.27

1.35

Answer is:

1

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

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Related RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

98) In DC motor the direction of induced emf is opposite to main bars as per

fleming's left hand rule

lenz's law

fleming's right hand rule

faradays' law

Answer is:

lenz's law

99) The Ta/Ia graph of a DC series motor is a

parabola from no load to over load

straight line through out

parabola up to full load and a time at over load

parabola through out

Answer is:

parabola up to full load and a time at over load

100) 220V shunt motor develops torque of 54 nM at armature current of 10A. The torque produced when the armature current is 20A is

54 NM

81 N.M

108 N.M

27 N.M

Answer is:

108 N.M

101) Which type of DC generator is used in welding machines

series generator

shunt generator

cumulatively compound

differential compound

Answer is:

differential compound

RRB ALP Mechanical Question Paper 2014 Set-1 with Answer Key

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