Placement Papers - BSNL

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BSNL Placement Paper (Set-5)

Posted By : Nedaa Rating : +21, -3

BSNL Sample Paper Pattern (Set-5)  

1.In an audio amplifier audio signals become garbled and hence difficult to understand when an ac input current is large enough to drive the output to  -
a)  saturation only
b) Cut off only
c)  Either saturation or cut off
d) A value off the load line?
2.Five 1 bit registers are referred as -
a) Flags
b) Slags
c) Tags
d) None of the above ?
3.Next binary number after 0,1, 10, 11 is -
a) 12
b) 101
c) 100
d) 110
Identify coincidence logic circuit in the following ?
 a)                  b)    
c)                   d)     ?

4.If an inverter is placed at the input to an SR flip flop, the result is -
a) T flip flop
b) D flip flop
c) JK flip flop
d) BCD decade counter ?

5.See the Root locus diagram of a system and the following statements :-

1. The open loop system is a second order system.
2. The system is over damped for
3. The system is absolutely stable for all value of R.
6?Which of these statements are correct?
a) 1, 2, & 3
b) 1 and 3
c) 2 and 3
d) 1 and 2 ?

7.For the transfer function G(S)H(S) =     ?the phase cross over frequency is -
a) 0.5 rad/sec
b) 0.707 rad/sec
c) 1.732 rad/sec
d) 2 rad/sec ?

8.If the open loop transfer function of the system is  G(S) H(S) =
then a closed loop pole will be located at S = -12 wher the value of K is -
a) 4355
b) 5760
c) 9600
d) 9862 ?

9.Considering the following open loop transfer function -

10.The correct sequence of these systems in increasing order of the time taken for the unit step response to settle is ?a) 1, 2, 3 b) 3, 1, 2
c) 2, 3, 1
d) 3, 2, 1. ?

10.Considering unit feed back control system in the given figure, the ratio of time constant of closed loop response to open loop response will be -

a) 1: 1
b) 2 :1
c) 3 : 2
d) 2 : 3

11.Angle subtended by earth at geostationary communication satellite is -
a) 17.340
b) 51.40
c) 1200
d) 600 ?

12.For data transmission phase modulation is commonly used because -
a) Phase can be varied from +1800 to -1800
b) It is resistant to the effects of noise.
c) Demodulation is very easy
d) It gives highest data rates that can be transmitted over a given channel.?

 13.Several channels are interleaved and then transmitted together is known as ?  a) Frequency division multiplex
b) Time division multiplex
c) A group
d) A super group
14.Identify the wrong statement-
?The radar cross section of  a target -
a) Depends on the frequency used
b) May be reduced by special coating of the target
c) Depends on the aspect of a target, if this is non spherical
d) Is equal to the actual cross-sectional area for small targets.
15.Considering following parameters -
1. Loss in the media) 2. Permeability of the media) 3. Frequency of the wave 4. Velocity of the wave. Which of these parameters are responsible for the change of phase of a propagating electromagnetic wave?
a) 1, 2, and 3
b) 2, 3 and 4
c) 1, 3 and 4
d) 1 and 4 ?

 16.In super heterodyne receivers double spotting is caused by -
a) poor front-end rejection
b) misalignment of receiver
c) detuning of one or more IF stages.
d) non functioning of AGC ?

17.The number of lines per field in the United States TV system is -
a) 262 1/2
b) 525
c) 30
d) 60 ?

18.In a TV receiver the color killer -
a) cuts off  the chroma stages during monochrome receivers.
b) ensures that no color is transmitted to monochrome receivers
c) prevents color overloading
d) makes sure that the color burst is not mistaken for sync pulses, by cutting off reception during the back porch. ?

19.The nominal capacitance of a coaxial RF cable is of 40 pF/m and the characteristic impedance of 50W. The inductance of the cable is-
a) 1mH/m
b) 10 mH/m
c) 0.1 mH/m
d) 0.01 mH/m ?

20.Transmission of wave through Dominant mode is -
a) distortion less transmission
b) generates undesirable harmonic distortion
c) having loss of power
d) None of above. ?

21.Lower the standing wave ratio (SWR) -
a) Greater mismatch error
b) Lower mismatch error
c) No effect on matching
d) Moderate mismatch error ?

22.In klyrtron oscillator for getting wide range of oscillations resonators should be -
a) Critically coupled
b) Under coupled
c) Over coupled
d) No coupling required

23.The critical frequency is always -
a) Lower than maximum usable frequency
b) Equal to maximum usable frequency
c) Higher than maximum usable frequency
d) None of above?

24.The PIN diode based on -
a) Nonlinear resistance
b) Nonlinear reactance
c) Negative resistance
d) Controllable impedence ?

25.Which antenna having circular polarization -
a) Horn antenna
b) Lens antenna
c) Helical antenna
d) Discone antenna  ?? ?

26.The i/p S/N ratio of system is 50 and the o/p S/N ratio is 5 the noise figure is -
a) 250
b) 55
c) 10
d) 45 ?

27.In the 8085 mP, the RST 6 instruction transfers the program execution to the following location -
a) 30 H
b) 24 H
c) 48 H
d) 60 H ?

28.In instruction cycle  first operation is -
a)  Memory read
b) Address read
c)  Opcode fetch
d) Data read ?

29.CMP instruction comes under group -
a)  Data transfer
b) Branching operations
c)  Machine control operation
d) Logical operations. ?

30.In which logic operation does not effect any flags -
a)  ANA  B
b) ORA   B
c)  XRI    A2H
d) CMA ?

31.What happen when CALL instruction executed -
a)  Data retrieved from stock to register
b) Data from register saved on the stock.
c)??16 bit address of instruction saved on stock
d) 16 bit address from stock retrieved) ?

32.The mark status of mark able interrupts is defined according to content of -
a)  stack pointer.
b) HL register .
c)  Program counter
d) Accumulator ?

33.The decoder is a logic ckt  that -
a)  Amplifies the current or power at i/p.
b) Identifies each combination of the signals present at i/p
c)? Provides appropriate code as o/p for each i/p signal
d) Both b & c) ?

34.The young man was quickly promoted when his employers how --------------- he was -
a) indigent
b) indifferent
c) assiduous
d) cursory. ?

35.As letter is alphabet so zodiac is -
a) almanac
b) beacon
c) sign
d) signal. ?

36.What is the correct meaning of prudish.?
a) careful
b) fast
c) God
d) brave ?

37.Pick out the odd matching with reference to number -
a) woman ? women. b) hair      ?  hairs c) child    ?  children. d) foot      ?  feet.
38.Choose the phrase that is most nearly similiar in meaning to the word given below- Abut is
a) Stimulate
b) Grasp
c) Oppose
d) Adjoin ?

39.The highest mountain peak in Indian Territory is -
a) Mount Everest
b) Kanchenjunga
c) Nanda Devi
d) Mount Kailash ?

40.German silver is an alloy comprising -
a) Copper, Nickel and Zinc
b) Silver, copper and Zinc
c) Silver Nickel and Zinc
d) Nickel, Zinc and Lead ?

41.Mughal Emperor Bahadur Shah Zafar?s  mausoleum is in - a) Delhi
b) Lahore
c) Yangon
d) Agra ?

42.On which date the World Trade Centre in New York and Pentagon in Washington d)C was attacked by terrorist -
a) 12 September 2001
b) 11 September 2001
c) 11 July 2001
d) 20 December 2001 ?

43.India defeats South Africa in the finals of the inaugural champions challenge Hockey Tournament in Kualalumpur by -
a) 4-2
b) 2-0
c) 3-2
d) 2-1 ?

44.Which planets in the solar system are known as ?Inferior Planets? - a) Earth and Mars
b) Earth and Mercury
c) Mars and Mercury
d) Mercury and Venus. ?

45.?The largest Stupa in Southern India is at -
a) Nellore
b) Amravati
c) Tanjore

46.The new chairman and Managing Director of Industrial Finance Corporaton of India (IFCI) is -
a) Mr. Vishwanath Prasad Singh
b) Mr. Jitendra Patil
c) Mr. Ragh
d) Mr. Shubhash chand Jain
47.Which one is the latest among rock-cut temples?
a)  Ajanta
b)  Ellora
c)  Elephanta
d)  All originated in the same period) ?

48.Number of organisations government ban in  Jammu and Kashmir and the North East under the new ordinance ?POTO? is - a) 20
b) 21
c) 22
d) 23 ?

49?In bed of which river does Badrinath shrine stand?
a) Ganga
b) Mandakini
c) Alakananda
d) Bhagirathi ?

50.The nerve endings for the sense of sight are located in the part of the eye called the -
a) Cornea
b) Sclera
c) Iris
d) Retina ?

51.Fundamental duties were introduced in the constitution by the -
a) 40th Amendment
b) 42nd Amendment
c) 43rd Amendment
d) 44th Amendment ?

52.The  Khalsa Panth was founded by -
a) Guru Hargovind
b) Guru Nanak Dev
c) Guru Tegh Bahadur
d) Guru Govind singh ?

53.Number of countries involved in international fleet review hosted by India is -
a) 27
b) 28
c) 29    d) 30

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