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ISRO
ISRO Technician-B
Electrician
ISRO Technician-B Electrician 2015
10

ISRO Technician-B Electrician Question Paper - 2015 (Set - 1) with Answer Key

10) Which of the following DC motors is suitable for high starting torque?

shunt motor

commutative compound motor

series motor

compound motor

Answer is:

series motor

ISRO Technician-B Electrician Question Paper - 2015 (Set - 1) with Answer Key

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Related ISRO Technician-B Electrician Question Paper - 2015 (Set - 1) with Answer Key

11) The no load voltage of a generator is 230 V and the rated load voltage is 200V, then the voltage regulation is

5%

10%

15%

20%

Answer is:

15%

12) The transformer oil used in transformer provides

insulation and cooling

cooling and lubrication

insulation and lubrication

insulation, cooling and lubrication

Answer is:

insulation and cooling

13) The main purpose of performing open circuit test at rated voltage is to measure

copper loss

core loss

total loss

insulation resistance

Answer is:

core loss

14) Buchholz relay is a

voltage sensitive device

current sensitive device

frequency sensitive device

gas actuated device

Answer is:

gas actuated device

ISRO Technician-B Electrician Question Paper - 2015 (Set - 1) with Answer Key

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