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Monday, August 1, 2022

Loksewa old question 2073 level 4 || NEA question paper

Mr Electro Test Quiz for NEA, NTC, PSC, CANN preparation students for Electrician, Foreman, Supervisor, Assistant Enginner, & Enginner. Here is given Loksewa old question 2073 level 4 || NEA question paper level 4 for you.

Loksewa old question 2073 level 4 electrician foreman

Multiple Choice
30x3.3=99+ neat writing 1 = 100 Marks


Loksewa old question
1. The mechanical energy is converted into electrical energy by the help of
Generator
Motor
Transformer
All of the above
2. RCC poles usually have the spans of
250-400 m
80-150 m
50-80 m
25-50 m
3. Which of the following distribution systems is not normally used?
3 phase, 3-wire
3 phase, 4- wire
Single phase, 3-wire
Single phase, 2-wire
4. In a substation, current transformers are used to
Measuring purpose
Protection purpose connoting to relays
Both and B
None of the above
5. lightning arrester provides
Low impedance path between line and earth during operation
High impedance path between line and earth during operation
Low resistance path between line and earth during operation
High resistance path between the line and earth during operation
6. Earth wires are made of
Copper
Aluminum
Iron
Galvanized stranded steel
7. Which meter is installed at the premises of a consumer for recovery of charges of electrical energy?
Ammeter
Voltmeter
Kwh meter
KV meter
8. Which of the following distribution systems is not normally used?
Power transformers
Lightning arrester
Exciters
Shunt capacitors
9. Which type of insulator is used on 132 KV transmission line?
Pin type
Disc type
Shackle type
Pin and shackle type
10. The conductors of the overhead lines are
Solid
Stranded
Both and B
None of the above
11. The rating of fuse is expressed in terms of
Volts
Amperes
VAR
KVA
12. A material best suited for manufacturing of fuse wire
Silver
Copper
Aluminum
Zinc
13. In outdoor substation, the lightning arresters is placed nearer to
the isolator
the current transformer
the power transformer
the current breakers
14. Fuse is connected
in series with circuit
in parallel with circuit
either in series or parallel with the circuit
none of the above
15. A circuit breaker is essentially
an arc extinguisher
a current interrupting device
a power factor correcting device
a device for naturalizing the effect of transients

Other extra question

16. Localization of cable faults done by
short circuit tests
murray loop tests
vurley loop tests
both murray and vurley test
17. Transient disturbances arc due to
switching operations
load variations
faults
any of the above
18. If receiving end voltage of open circuited or lightly loaded line is more then sending end voltage, the effect is called
corona effect
seeback effect
ferranti effect
raman effect
19. If input to the prime movers of the alternator is kept constant but excitation is changed, then
reactive component of the output is changed
active component of the output is changed
power factor of the load remains constant
power factor of the load reduces
20. An alternator is said to be over excited when the alternator is operating at
unity power factor
leading power factor
lagging power factor
lagging to leading power factor

1 comment:

  1. feeling so good for attending this type of exam thank you

    ReplyDelete

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