NEA LokSewa || NEA question paper model 11

Mr Electro Test Quiz for NEA, NTC, PSC, CANN preparation students for level 3, level 4, level 5, level 6, level 7 i.e Electrician, Foreman, Supervisor, Assistant Engineer, & Engineer. This is about NEA LokSewa || NEA question paper model 11 to help you in preparing for your study.

Model question set 11

Multiple Choice Question

1. When the rotor of a 3-phase induction motor is blocked the slip is
zero
0.5
0.1
1
2. A four speed squirell cage induction motor uses ____ stator windings
4
3
1
2
3. The flux in the core of a single-phase transformer is ____.
purely alternating one
purely rotating one
partly alternating and partly rotating
none
4. Electrostatic instruments are used as
voltmeters only
ammeters only
both a & b
wattmeters only
5. The greatest eddy current loss occurs in the ____ of a DC machine.
field poles
yoke
commutating poles
armature
6. An alternator is sometimes called ___ generator.
synchronous
asynchronous
rosenberg
none
7. The number of cycles generated in a 6-pole alternator in one revolution is
3
6
50
none
8. In overhead transmission line the sag depends on
tension in the conductor
conductor material
height of tower
all
9. A series motor will over speed when
the load is increased
the field is opened
the armature circuit is opened
the load is removed
10. The cable fault maybe due to
break in conductor
failure in insulation between conductors
failure of insulation between conductor and earth
all
11. The impedance relay scheme is used for the protection of
transmission lines
alternators
bus-bars
transformers
12. Differential relay are used to protect the equipment against
overcurrent
reverse current
internal faults
none
13. For full-wave rectifier the minimum number of diodes required is
1
2
3
4
14. Which of the following devices doesn't belong to the transistor family?
IGBT
MOSFET
GTO
BJT
15. Candela is the unit of
luminous flux
luminous intensity
wavelength
none

Answer sheet for all questions

1. When the rotor of a 3-phase induction motor is blocked the slip is
- 1
2. A four speed squirell cage induction motor uses ____ stator windings
- 2
3. The flux in the core of a single-phase transformer is ____.
- purely alternating one
4. Electrostatic instruments are used as
- voltmeters only
5. The greatest eddy current loss occurs in the ____ of a DC machine.
- armature
6. An alternator is sometimes called ___ generator.
- synchronous
7. The number of cycles generated in a 6-pole alternator in one revolution is
- 3
8. In overhead transmission line the sag depends on
- all
9. A series motor will over speed when
- the load is removed
10. The cable fault maybe due to
- all
11. The impedance relay scheme is used for the protection of
- transmission lines
12. Differential relay are used to protect the equipment against
- internal faults
13. For full-wave rectifier the minimum number of diodes required is
- 2
14. Which of the following devices doesn't belong to the transistor family?
- GTO
15. Candela is the unit of
- luminous intensity