57) Total number of coils per phase per pole is

Total number of coils/Number of phases

Total number of coils/(Number of phases x Number of poles)

Total number of phases / Number of coils

(Number of phases x Number of poles)/(Total Number of coils)

Answer is:

Total number of coils/(Number of phases x Number of poles)

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

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58) In a D.C machine, the number of commutator segments is equal to

Number of conductors

Twice the number of poles

Number of coils

None of the above

Answer is:

Number of coils

59) The speed of a _____ Motor is practically constant

Cumulatively compounded

Series

Differentially compounded

Shunt

Answer is:

Shunt

60) The Illumination required for a work place where fine work is performed will be of the order of

500 lumens / square meter

1000 lumens / square meter

1500 lumens / square meter

2000 lumens / square meter

Answer is:

1500 lumens / square meter

61) Luminous efficiency of a fluorescent tube is

30 lumens / W

40 lumens / W

60 lumens / W

80 lumens / W

Answer is:

60 lumens / W

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

For more MCQ's Click Here

57) Total number of coils per phase per pole is

Total number of coils/(Number of phases x Number of poles)

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

Related ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

58) In a D.C machine, the number of commutator segments is equal to

Number of coils

59) The speed of a _____ Motor is practically constant

Shunt

60) The Illumination required for a work place where fine work is performed will be of the order of

1500 lumens / square meter

61) Luminous efficiency of a fluorescent tube is

60 lumens / W

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key