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ISRO Technician-B
Electrician
ISRO Technician-B Electrician 2019
57

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

57) What is the approximate efficiency of a 50Hz, 6 pole, 3-phase induction motor running at 900 rpm

95%

90%

85%

80%

Answer is:

90%

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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Related ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

58) Steradian is the unit of

Planner angle

Solid angle

Radiant efficiency

None of the above

Answer is:

Solid angle

59) For low head and large discharge, the hydraulic turbine used is

Francis turbine

Kaplan turbine

Pelton turbine

None of the above

Answer is:

Kaplan turbine

60) In a nuclear reactor which of the following material is employed in control rods to regulate fission rate

Iron

Brass

Cadmium

Graphite

Answer is:

Cadmium

61) Which range of voltage is referred as low voltage?

<1.5V

<230 V

<600 V

<11000V

Answer is:

<600 V

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

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