Technical section:
1) Bucholz relay is..................
a. Gas actuated relay
b. Current sensing device
c. Voltage sensing device
Ans: a
2)Shunt is made up of .........
a. Copper
b. Tungsten
c. Maganin
Ans: c
3)In a 4kva ,400/200 v m/c the value of impedance & reactance are given as 0.002 & 0.006 .what will
be the new values of them when referred to the h.v side.
a. 0.2,0.6
b. 0.08,0.036
c. 0.4,0.12
4)Metallic sheath is used to .........
a. prevent the cable from moisture
b. provide mechanical strength
Ans: b
5) Of the following bridges the one which can be used for the measurement of dielectric loss of a
capacitor is –
a. Schering bridge ..........
b.Heaviside campbell equal ratio voltage
c. Owen bridge
d. Anderson bridge
Ans. a. Schering bridge
6)Diac is a...............
a. 3-layer ,2-junction
b. 2-layer,3-junction
c. 4-layer,3-junction
7)Load voltage equation of step up chopper.........
a. v(1-a)
b. v/(1-a)
Ans: b
8)Which is not realated to ckt breaker.........
a. conservator
b. explosion pot
c. operating mechanism
Ans: a
9) Coefficient of reflection of short transmission line is........
a. 1
b. -1
c. 0
d. infinite
Ans: b
10)1st nuclear power plant located at .......
a. trombay
b. kalpakkam
c. tarapur
Ans: tarapur
11)If a current setting is given as 25%, ct ratio is 400/5 then find pick up value......
a. 6.25
b. 0.25
c. 4
Ans: a
12. d.c chopper converts .......
a. ac to ac
b. ac to dc
c. dc to dc
d. dc to ac
Ans:c
13)In a controlled rectifier , the nature of load current i.e, whether load current is continous or
discontinous is
a. does not depend on type of load & firing angle delay
b. depends on load & firing angle delay
c. depends only on type of load
d. depends only on firing angle delay
Ans:b
14)For thyrister pulse triggering is preferred on dc trigerring because..........
a. gate dissipation is low
b. pulse system is simpler
c. triggering system is required for very short duration
d. all of these
Ans:d
15)Thyristers are basically ..........
a. scr's
b. triac's
c. both scr's and triac's
d. all pnpn devices
Ans : d
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http://gkpapers.blogspot.com/2011/10/model-paper-for-eil-management-trainee.html
http://gkpapers.blogspot.com/2011/10/engineers-india-limited-placement.html
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