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  #2  
17th August 2014, 01:21 PM
Super Moderator
 
Join Date: Apr 2013
Re: RRB JE electrical Solved Question paper

Railway Recruitment Board Junior Engineer Electrical exam model question paper is, i am giving here:

1. A resistance of 10 ohm is connected across a supply of 200V. If resistance R is now connected in parallel with a 10
ohm resistance, the current drawn from the supply gets doubled. The value of unknown resistance R is
(a) 5 ohm
(b) 20 ohm
(c) 10 ohm
(d) 15 ohm
Ans : c
2. Kirchhoff’s first law is also called as
(a) voltage law
(b) Current law
(c) Mesh Current law
(d) All the above
Ans : b
3. Find the total resistance when four 3 Ohm resistance are connected in series
(a) 3 ohm
(b) 12 ohm
(c) 14 ohm
(d) 8 ohm
Ans : b
4. The practical unit of power is
(a) Joule
(b) Ampere
(c) Watt
(d) Weber

Ans : c
5. Form factor of a sine wave is
(a) 1.414
(b) 1
(c) 0
(d) 1.11
Ans : d
6. The unit of resistance is
(a) Mho
(b) ohm-m
(c) Ohms
(d) Amps
Ans :c
7. Unit of impedance is
(a) Ampere
(b) Volt
(c) Ohm
(d) mho
Ans : c
8. The close path of the flux around any current carrying circuit is referred as
Circuit.
(a) Magnetic
(b) Electric
(c) Electromagnetic

(d) None of these
Ans : a
9. The current flowing in an electrical circuit is due to the existence of
(a) mmf
(b) emf
(c) Resistance
(d) Reluctance
Ans : b
10. The magnetic flux flow through a magnetic circuit is due to
(a) mmf
(b) emf
(c) Resistance
(d) Reluctance
Ans : a
11. The on-line UPS is also called as
a. Stand-by UPS
b. Line Interactive UPS
c. Off line UPS
d. Current line UPS
Ans. b
12. ________ is used to convert alternating current to direct current.
a. Transformer
b. Diode
c. Resistor
d. Transistor

Ans. b
13. The supply voltage varies sinusoid ally and has a frequency __________ Hz.
a. 60
b. 50
c. 20
d. 10
Ans. b
14. Expression for magneto-motive force is
(a) N/I
(b) 1/NI
(c) I/N
(d) IN
Ans : d
15. Unit of mmf is
(a) Ampere /Volt
(b) Ampere- turns
(c) Volt
(d) Volt/Ampere
Ans : b
16. Magnetic field strength is equal to
(a) mmf. L
(b) L/ mmf
(c) mmf/ L
(d) 1/mmf.L

Ans : c
17. Peak inverse voltage of bridge rectifier is as that of centre-tap circuit.
a. Same
b. Twice
c. Half
d. Four times
Ans. c
18. Peak Resistance of the diode is increased when
a. Forward biased
b. Reverse biased
c. Both forward and reverse biased
d. Either a or b
Ans. b
19. The number of lines of force passing through the secondary coil S when unit current changes in the primary coil P
are called
(a) Self inductance
(b) Mutual inductance
(c) Self induction
(d) Mutual induction
Ans : c
20. Unit of flux
(a) Amp- turns
(b) Weber
(c) Volts
(d) Amps

Ans : b
  #3  
2nd March 2016, 05:56 PM
Unregistered
Guest
 
Re: RRB JE electrical Solved Question paper

Please provide me the past year question paper for the Railway Recruitment Board for the Junior Electrical Engineer for preparation for next examination?
  #4  
2nd March 2016, 05:56 PM
Super Moderator
 
Join Date: May 2012
Re: RRB JE electrical Solved Question paper

The past year question paper for the Railway Recruitment Board for the Junior Electrical Engineer is as follows:

1. The limiting value of super elevation of board gauge in Indian Railways is:
(a) 16.50 cm (b) 30 cm (c) 15 cm (d) 10 cm
Ans : A
2. Which of the following is not a part of rail engine?
(a) Tender (b) Stream turbine (c) Boiler (d) Fire box
Ans : B
3. The staggered rails joints are usually provided on:
(a) Bridge (b) Curves (c) Branching (d) Tangents
Ans : B
4. In broad gauge, the clear horizontal distance between the inner faces of two
parallel rails forming the track is:
(a) 1 m (b) 1.676 m (c) 0.6096 m (d) 0.792 m
Ans : B
5. Generally the shape of fish plate is:
(a) elliptical (b) bone shaped (c) circular (d) rectangular
Ans : B
6. The track capacity can be increased by:
(a) Faster movement of trains on the track
(b) By using more powerful engines
(c) All the above
(d) None of the above
Ans : C
7. Detonating signals are used:
(a) for noisy engines
(b) during foggy and cloudy weather
(c) for deaf drivers
(d) not now, were in use in nineteenth century only
Ans : B
8. Wider gauge permits:
(a) sleeper gradients (b) low axle load
(c) higher operating speeds (d) sharp curves
Ans : C
9. The railway station at which a track line meets a main line is called:
(a) terminal station (b) flag station
(c) way side station (d) junction station
Ans : D
10. Points and crossings are provided for change of ….on permanent ways.
(a) gauge (b) direction and gradient
(c) direction (d) gradient
Ans : C
11. The chart used for recording the condition of track is known as:
(a) Rolling chart (b) Track chart
(c) Hallade chart (d) Vibro chart
Ans: C
12. The most common system of signaling in India is the …… system.
(a) automatic block (b) section clear system
(c) absolute block (d) pilot guard system
Ans : C
13. The feeder gauge …. is commonly used for feeding raw materials to big
Government manufacturing concerns as
well as to private factories such as steel plants, oil refineries, sugar factories etc.
(a) 0.6096 m (b) 0.792 m (c) 1m (d) 1.676 m
Ans : A
14. A parabolic curve introduced between straight and a circular curve or
between two branches of a compound curve
for ease, comfort and safety of movement of trains on curve is called:
(a) Spur curve (b) Transition curve
(c) Summit curve (d) Valley curve
Ans : B
15. The railway track from which a train is to be diverted is called:
(a) branch track (b) points and crossing
(c) main or through track (d) all above
Ans : C
16. An expansion gap of …. is usually kept between the adjoining rail ends to
allow for expansion of rail, due to
variation in temperature.
(a) 1 to 3 mm (b) 10 to 15 mm
(c) 6 to 8 mm (d) 3 to 5 mm
Ans : C
17. Which one of the following bolts is not used in rail track:
(a) Fang bolt (b) Eye bolt (c) Rag bolt (d) Fish bolt
Ans : B
18. The gradient which requires one or more additional locomotive for hauling
the load over the gradient is called:
(a) Up-gradient (b) Pusher gradient
(c) Steep gradient (d) Momentum gradient
Ans : B
19. In locomotive ‘hunting’ is:
(a) Movement of locomotive in vertical plane perpendicular to its movement
along the track
(b) Sinuous path taken by engine as against the alignment of the track
(c) Motion after brakes have been applied
(d) Combination of A and B above
Ans : D


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