Mr Electro

Hi Mr Electro family!! This is an educational website for electrical stream ( Electrical engineering, Diploma student and PreDiploma students) . This is mainly focused for those students who are waiting for Government jobs like LokSewa Aayog PSC, NEA, CANN NTC for level 3, level 4, level 5 and level 7 and also private jobs.

Saturday, August 6, 2022

This model set will help you in all types of jobs in public service as well as private. This is Model Question Set 1 || NEA || Loksewa aayog which will help you for electrical objective question or electrical multiple choice question.

Model question for NEA/Loksewa aayog for level 3, level 4, level 5, level 6, level 7.

Multiple Choice
Each question has equal 1 marks.

1. The Capacitance in equivalent circuit of the transmission line is due to
leakage of current
presence of magnetic flux
difference in potential of line
current in the line
2. Due to sag, the conductor between two supports takes the form of
catenary
triangle
ellipse
semi-circle.
3. In a power system, the presence of earth wire
increase in line capacitance
increase in line inductance
decrease in line capacitance
decrease in line inductance
4. In an alternator, voltage drops occurs in
armature resistance only
armature resistance and leakage reactance
armature resistance, leakage reactance and armature reaction
armature resistance, and earth connections.
5. The magnitude of the various voltage drops that occur in the alternator, depends on
power factor of the load
power factor x load current
power factor x (load current)^2
6. At lagging power factor in an alternator, the generated voltage per phase, as compare to that at unity power factor
must be same as terminal voltage
must be less than the terminal voltage
must be more than the terminal voltage
must be 1.41 times the terminal voltage
7. Which of the following instrument can be used to measure the AC current only?
Permanent Magnet Type ammeter
Induction type ammeter
Moving iron voltmeter
Moving iron ammeter
8. An oscilloscope indicates
Peak to peak value of voltage
DC value of voltage
RMS value
Average value
9. In the ballistic galvanometer, the deflecting torque is proportional with
the current through coil
square of current through coil
square-root of current through coil
sine of measured
10. When transmission voltage is increased the line losses will be
decreased
increased
same
none
11. Which DC generator has 2 field winding ?
Series generator
Shunt generator
Compound generator
None of the above
12. Which oppose magnetic fluxes in the magnetic circuit?
Resistance
Reluctance
Inductance
Impedance
13. The Constant losses in a DC generator are..?
Iron losses
Mechanical losses
Shunt field losses
All of the above
14. Full name of vVIR cable is...?
Vaccum insulation rubber
Vulcanized insulation rubber
Both A and B
None
15. Which of the following circuit breaker has the gnealest service life?
MOCB
ABC
VCB
MCCB
16. The efficiency of solar cell is about
25%
15%
40%
60%
17. Which of the following plants operates on low speed?
hydro
steam
nuclear
gas turbine
18. Principle of statically induced emf is applied in
generators
motors
transformers
none of the above
19. The medium employed for extinction of arc in air circuit breaker is
SF6
oil
air
water
20. Low voltage circuit breakers have rated voltage of less than
220 V
400 V
1000 V
10000 V