KPSC - Electrician Previous Questions

#1. Which type of joint used in over head transmission for extending the length of wire…..?

married joint

rat tail joint

western union joint

arial tap joint

#2. Which method of speed control is used in DC series fan regulator?

field diverter method

field tapping method

series parallel method

supply voltage control

#3. What is the feature of salient pole rotor used in alternator?

smaller in length & larger in diameter

smaller in length & smaller in diameter

larger in length & larger in diameter

larger in length & smaller in diameter

#4. What is the working principle of single winding transformer?

self induction

mutual induction

lens's law

principle of motor

#5. Which type of single phase motor is having wound rotor?

split phase

universal motor

capacitor motor

shaded pole motor

#6. For a full pitch 3 phase winding, what will be the coil throw, if the coil pitch is 12?

6

12

10

24

#7. Which one of the following is the LDR’s application?

for switching operation

used for voltage stabilization

temperature measurement

for measuring intensity of light

#8. What is the application of triac?

used for triggering

controlling AC in either direction

used to square pulse

used as inverter, converting AC to DC

#9. PILC cable stands for….?

paper insulated length cable

polymer insulated lad core

paper insulated lead covered

poly insulated lead core

#10. Try square is used to check up an angle of…?

30

60

90

120

#11. A revet is specified by the diameter of its…?

tail

head

shank

flange

#12. A semiconductor without any impuritiy is known as….?

Intrinsic semi conductor

Extrinsic semi conductor

Pure semi conductor

Good semi conductor

#13. In a electric mixer ….. type motor is used: universal motor?

series motor

shunt motor

universal motor

repulsion motor

#14. In an electric heater the heating coil is generally made by…:

tungten

nichrome

manganin

copper

#15. Current transformer uses…?

step up transformer

step down transformer

isolator transformer

ideal transformer

#16. The most common type fault in over head lines is…..?

single phase to ground

phase to phase

two phase to ground

three phase to ground

#17. Reactors are connected ….. with the power system?

series

parallel

series parallel

all the above

#18. Buchholz relay is used on….?

instrument transformers

air cooled transformers

oil immersed power transformers

distribution transformers

#19. Differential relays are connected to protect the equipment against…..?

over current

over voltage

internal faults

reverse current

#20. A cutting tool used to cut outside threads is called….?

die

tap

drill

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