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DATE:-July 22, 2024

1.
Which of the following personalities gave ‘The Laws of Heredity’?

2.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes

3.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9

4.
A cordless telephone using separate frequencies for transmission in base and portable units is known as

5.
The resistivity of pure germanium under standard conditionsis about……….

7.
The initial response when tne output is not equal to input is called

8.
Which of the following national parks is not listed in a UNESCO World Heritage site?

9.
Which of the following statements is correct?

10.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..

11.
In Pulse Code Modulation system

12.
The sine function is deﬁned as ratio of side lengths,

13.
For telegraphy the most commonly used modulation system is

14.
A semiconductor has generally……………… valence electrons.

15.
A closed loop system is distinguished from open loop system by which of the following ?

16.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?

17.
Grand Central Terminal, Park Avenue, New York is the world’s

18.
Which of the following is an indirect way of generating FM?

19.
Convert an angle of 75 degrees into radians:

20.
By which of the following the control action is determined when a man walks along a path ?

21.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of

22.
A good control system has all the following features except

23.
VSB modulation is preferred in TV because

24.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.

25.
A control system in which the control action is somehow dependent on the output is known as

26.
.... is a part of the human temperature control system.

27.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?

28.
The frequency range of 300 kHz to 3000 kHz is known as

29.
The resistivity of a pure silicon is about……………

30.
For a low level AM system, the amplifiers modulated stage must be

31.
Garampani sanctuary is located at

32.
The random motion of holes and free electrons due to thermal agitation is called ……….

33.
The signal dened by the equations f(t) = 0 for t < 0, f(t) = E for 0 ? t ? a and f(t) = 0 for t > a is

34.
If the cosine of angle θ is equal to 0.5, and the length of the opposite side is 20 meters, calculate the length of the hypotenuse.

35.
Factor the following polynomial expression: x2 −x−12

36.
Addition of trivalent impurity to a semiconductor creates many……..

37.
What is the nature of Fourier representation of a discrete & aperiodic signal?

38.
In Modulation, “carrier” is

39.
Reactance bipolar transistor

40.
When a pure semiconductor is heated,its resistance …………..

41.
A semiconductor is formed by……… bonds.

42.
Name the person who was also known as Deshbandhu.

43.
Complex numbers are used in AC circuit analysis primarily to represent:

44.
Positive logic in a logic circuit is one in which

45.
Which type of system response to its input represents the zero value of its initial condition?

46.
Double integration of a unit step function would lead to

47.
An automatic toaster is a ______ loop control system.

48.
Commercial Frequency deviation of FM is

49.
In a semiconductor,current conduction is due to ……..

50.
To eliminate ghosts in the picture

51.
A trivalent impurity has…..valence electrons

52.
Which among the following belongs to the category of non-recursive systems?

53.
Who is known as “The Saint of Gutters”?

54.
A modem is classified as low speed if data rate handled is

55.
In an open loop control system

56.
Manipulate the following equation to solve for x: a = √bx2

57.
A signal g(t) = A then g(t) is a

58.
Which of the following ratios is equivalent to the ratio 25:300 ?

59.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?

60.
Duality Theorem / Property of Fourier Transform states that _________

61.
Which of the following devices are commonly used as error detectors in instruments ?

62.
The Fourier series of an odd periodic function contains

63.
Which of the following statements is not necessarily correct for open control system ?

64.
An n-type semiconductor is………

65.
Which of the following should be done to make an unstable system stable ?

67.
Has tendency to oscillate.

68.
In closed loop control system, with positive value of feedback gain the overall gain of the system will

69.
Which crop is sown on the largest area in India?

70.
A woofer should be fed from the input through a

71.
A semiconductor has………… temperature coefficient of resistance.

72.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?

73.
A system is said to be dened as non causal, when

75.
Themost commonlyused semiconductoris………..

76.
A hole and electron in close proximity would tend to ……….

77.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.

78.
Which of the following does not cause losses in optical fiber cables?

79.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication

80.
Under which conditions does an initially relaxed system become unstable ?

81.
The colour of an object is decided by

82.
When a pentavalent impurity is added to a pure semiconductor,it becomes……

84.
The strength of a semiconductor crystal comes from ……..

85.
For open control system which of the following statements is incorrect ?

86.
Any externally introduced signal affecting the controlled output is called a

87.
All causal systems must have the component of

88.
Manipulate the following equation to solve for x:

89.
Which of the following is an open loop control system ?

90.
Damped sinusoids are _____

91.
.... is a closed loop system.

92.
For attenuation of high frequencies we should use

93.
A hole in a semiconductor is defined as…………….

94.
A pentavalent impurity has……….Valence electrons

95.
A control system working under unknown random actions is called

96.
Addition of pentavalent impurity to a semiconductor creates many……..

97.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________

98.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

99.
A system which is linear is said to obey the rules of

100.
A time invariant system is a system whose output