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RRB ALP Mechanical 2014
48

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

48) The electric current which changes its direction after fixed intervals of time is called

induced current

direct current

alternating current

None of these

Answer is:

alternating current

Explanation:

The electric current which changes its direction after fixed intervals of time is called alternating current.

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

49) A device used to stabilise the voltage supplied by electric supply station is a

dynamo

transformer

ammeter

generator

Answer is:

transformer

50) Silver is a

magnetic substance

good conductor of electricity

bad conductor of electricity

none of these

Answer is:

good conductor of electricity

51) An instrument used to observe heavenly bodies is the

telescope

camera

microscope

periscope

Answer is:

telescope

52) The maximum percentage in the atmosphere is of

Oxygen

Nitrogen

Carbon dioxide

Helium

Answer is:

Nitrogen

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

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