Hello sir after filling form of ONGC CBT here I came for to get some Question Papers for ONGC CBT exam preparation. Can any one here give me ONGC CBT Question Papers?

ONGC Graduate Trainee CBT is a entrance exam for Finance & Accounts Officer, Fire Officer, Security Officer, Assistant Executive Engineer ( Environment ), HR Executive, and Medical Officer post.

Selection Procedure:
Candidates will be required to appear for a written test and short listed candidates in written test will be called for psychometric test and Interview.

Written Test 60 Marks
Interview 15 Marks
Qualification 25 Marks
Total 100 Marks

ONGC GT Electronics Engineering questions:

1 . Two coils in differential connection have self-inductance of 2 mH and 4 mH and a mutual inductance of 0.15 mH. The equivalent inductance of the combination is
A. 5.7 mH
B. 5.85 mH
C. 6 mH
D. 6.15 mH.

2. Two point charges Q and -Q are located on two opposite corners of a square as shown in figure. If the potential at the corner A is taken as 1V, then the potential at B, the centre of the square will be
1. zero
2.
3. 1V
4.

3. Optocouplers combine
A. SITs and BJTs
B. IGBTs and MOSFETS
C. Power transformers and silicon transistor
D. Infrared light-emitting diode and a silicon phototransistor

4. The difference between the indicated value and the true value of a quantity is known as
A. Gross error
B. Absolute error
C. Dynamic error
D. Relative error

5. The principles of homogeneity and super-position are applied to :
A. linear time variant sy stems
B. non-linear time variant sy stems
C. linear time invariant sy stems
D. non-linear time invariant sy stems.

6. In a 8085 microprocessor sy stem with memory mapped I / 0,
A. I / 0 devices have 8-bit addresses
B. I / 0 devices are accessed using IN and OUT instructions
C. there can be a maximum of 256 input devices and 256 output devices.
D. arithmetic and logic operations can be directly performed with the I / 0 data.

7 . The transistor shown in figure below, is biased
1. at cut-off
2. at saturation
3. well into saturation
4. well into cut-off

8. In any transmitting antenna sy stem, efficiency primarily depends upon
A. ohmic losses of various conductors
B. radiation resistance
C. ground conductivity
D. atmospheric conditions.

9. An instruction used to set the carry Flag in a computer can be classified as
A. data transfer
B. arithmetic
C. logical
D. program control

10. The binary representation of 5.37 5 is
A. 1 1 1 .101 1
B. 101 .1 101
C. 101 .01 1
D. 1 1 1 .001

11 . Dislocations in materials are
A. point defect
B. line defect
C. planer defect
D. surface defects.

12. In TV sy stem, vertical pulses are separated out from horizontal pulses by the use of
A. integrator
B. differentiator
C. sweep credit
D. sync separator.

13. Frequency in the UHF range propagate by means of
A. Ground waves
B. Sky waves
C. Surface waves
D. Space waves.

14. 200 MHz may be classified as
A. VHF
B. SHF
C. UHF
D. EHF

15. A communication satellite is a repeater between
A. a transmitting station and a receiving station
B. a transmitting station and many receiving stations
C. many transmitting stations and many receiving stations
D. none of the above

16. The power in a series R-L-C circuit will be half of that at resonance when the magnitude of the current is equal to
A. V / 2R
B. V /
C. V /
D.

17 . A point charge Q is located on the surface of a sphere of radius R as shown in the figure. The average electric field on the surface of the sphere will be
1. infinite
2.
3.
4. Zero

18. The efficiency of a chopper can be expected in the range
A. 50 to 55 percent
B. 65 to 7 2 percent
C. 82 to 87 percent
D. 92 to 99 percent

19. Which one out of the following instruments should be used to measure 600 kV a.c. voltages?
A. Hot wire instrument
B. Electrostatic voltmeter
C. Moving coil voltmeter
D. Moving iron voltmeter.

20.Which one of the following transfer functions represents the Bode plot shown in the above figure :
1.
2.
3.
4.

21 . The following programme is run on an 8085 microprocessor, Memory address in Hex Instruction
2000 LXI SP, 1000
2003 PUSH H
2004 PUSH D
2005 CALL 2050
2008 POP 2050
2009 HIT

As the completion of execution of the program, the program the program counter of the 8085 contains .........,
and the stack pointer contains ........
1. 2050, OFFC
2. 2251 , OFFC
3. 1025, OCCF
4. 1025, OCCF

22. With reference to figure, value of VCE is
1. 0 V
2. 5 V
3. -5V
4. none of the above

23. The smallest change in sound intensity that can be detected
A. 1 dB
B. 3 dB
C. 10 dB
D. 20 dB.

24. In a generic microprocessor, instruction cy cle time is
A. shorter than machine cy cle time
B. larger than machine cy cle time
C. exactly double the machine cy cle time
D. exactly the same as the machine cy cle time

25. The value of M in the end will be
Do 100 I = 1 , 2
DO 200 J = 1 , 2
M = M + I + J
200 CONTINUE
100 CONTINUE
STOP
END
1. 10
2. 1 1
3. 12
4. 14

26. Resistivity of electrical conductors is most affected by
A. temperature
B. pressure
C. composition
D. all of the above.

27 . In CCIR B-sy stem of TV, blanking pulse is placed during
A. equalizing pulse
B. retrace interval between each line
C. retrace period of vertical line
D. none of the above.

28. The polarization required in ground wave propagation is
A. Horizontal (linear)
B. vertical (linear)
C. Circular
D. Elliptical

29. Multicavity Kly stron
A. is not a microwave device
B. is not a good low level amplifier because of noise
C. is not suitable to pulse operation
D. has a high repeller voltage to insure small transit time

30. Transponder comprises of
A. Transmitter
B. Receiver
C. Antenna
D. a, b, c combined