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SSC JE ELECTRICAL
ssc MCQs with answers - Part 2
1. In house wiring which type of insulation is used ?
rubber
P.V.C
V.I.R
Paper
Answer: rubber
2. The unit of solid angle is ?
Solid angle
Radian
Steradian
Candela
Answer: Steradian
3. In case of frosted GLS lamps, frosting of shell is done by ........... ?
Acid etching
ammonia
ozone
salt water
Answer: Acid etching
4. The resistance of arc ?
Decreases with increase of the current
Increases with increase of the current
Does not depend on current
None of these
Answer: Decreases with increase of the current
5. For welding duty the rectifier commonly used are ?
Mercury arc rectifier
Selenium metal rectifier
Both Mercury arc rectifier and Selenium metal rectifier
None of these
Answer: Selenium metal rectifier
6. The device necessarily used for automatic temperature control in a furnace is ?
Thermostat
Auto-transformer
Thermo-couple
Any of the options
Answer: Thermo-couple
7. The ideal method of heating plastics is ?
Coal/oil fired furnace
Dielectric heating
Induction heating
Resistance heating
Answer: Dielectric heating
8. The merging of a free electron and a hole is known as ?
recombination
extrusion
absorption
adsorption
Answer: recombination
9. The circuit that would be used for 455 kHz, if amplifier is ?
resistance loaded
double tuned transformer
video amplifier
class C
Answer: double tuned transformer
10. A transistor is a combination of two p-n junction with their ?
p region connected together
n region connected together
n region connected to other p region
p region connected together and n region connected together
Answer: p region connected together and n region connected together
