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DATE:-October 26, 2024
1.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
2.
Double integration of a unit step function would lead to
3.
Which of the following personalities gave ‘The Laws of Heredity’?
4.
Under which conditions does an initially relaxed system become unstable ?
5.
Damped sinusoids are _____
6.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
7.
What is the nature of Fourier representation of a discrete & aperiodic signal?
8.
A good control system has all the following features except
10.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
11.
Duality Theorem / Property of Fourier Transform states that _________
12.
Factor the following polynomial expression: x2 −x−12
13.
.... is a closed loop system.
14.
Which of the following is an open loop control system ?
15.
Grand Central Terminal, Park Avenue, New York is the world’s
16.
Which of the following devices are commonly used as error detectors in instruments ?
17.
A modem is classified as low speed if data rate handled is
18.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
19.
Has tendency to oscillate.
20.
A semiconductor has generally……………… valence electrons.
21.
For telegraphy the most commonly used modulation system is
22.
All causal systems must have the component of
23.
Which of the following statements is correct?
24.
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
26.
A woofer should be fed from the input through a
27.
Which of the following national parks is not listed in a UNESCO World Heritage site?
28.
The colour of an object is decided by
29.
An n-type semiconductor is………
30.
Convert an angle of 75 degrees into radians:
31.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
32.
In Pulse Code Modulation system
33.
In Modulation, “carrier” is
34.
A hole and electron in close proximity would tend to ……….
35.
The resistivity of pure germanium under standard conditionsis about……….
36.
The Fourier series of an odd periodic function contains
37.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
38.
VSB modulation is preferred in TV because
40.
Which of the following is an indirect way of generating FM?
41.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
42.
Which type of system response to its input represents the zero value of its initial condition?
43.
Themost commonlyused semiconductoris………..
44.
Manipulate the following equation to solve for x:
45.
The resistivity of a pure silicon is about……………
46.
Which of the following statements is not necessarily correct for open control system ?
47.
A signal g(t) = A then g(t) is a
48.
When a pure semiconductor is heated,its resistance …………..
49.
A system which is linear is said to obey the rules of
50.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
51.
Complex numbers are used in AC circuit analysis primarily to represent:
52.
In an open loop control system
53.
A hole in a semiconductor is defined as…………….
54.
Name the person who was also known as Deshbandhu.
55.
A control system in which the control action is somehow dependent on the output is known as
56.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
57.
An automatic toaster is a ______ loop control system.
58.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
59.
By which of the following the control action is determined when a man walks along a path ?
60.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
61.
Positive logic in a logic circuit is one in which
62.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
63.
Addition of trivalent impurity to a semiconductor creates many……..
64.
Which of the following ratios is equivalent to the ratio 25:300 ?
65.
A control system working under unknown random actions is called
66.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
67.
For attenuation of high frequencies we should use
68.
A trivalent impurity has…..valence electrons
70.
Who is known as “The Saint of Gutters”?
71.
Reactance bipolar transistor
72.
For a low level AM system, the amplifiers modulated stage must be
73.
In a semiconductor,current conduction is due to ……..
74.
Any externally introduced signal affecting the controlled output is called a
75.
Addition of pentavalent impurity to a semiconductor creates many……..
76.
A semiconductor is formed by……… bonds.
77.
The frequency range of 300 kHz to 3000 kHz is known as
78.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
79.
The random motion of holes and free electrons due to thermal agitation is called ……….
80.
A pentavalent impurity has……….Valence electrons
81.
Garampani sanctuary is located at
82.
Which among the following belongs to the category of non-recursive systems?
83.
.... is a part of the human temperature control system.
84.
A semiconductor has………… temperature coefficient of resistance.
85.
For open control system which of the following statements is incorrect ?
86.
A closed loop system is distinguished from open loop system by which of the following ?
87.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
88.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
89.
The initial response when tne output is not equal to input is called
90.
Which crop is sown on the largest area in India?
91.
A system is said to be dened as non causal, when
92.
Commercial Frequency deviation of FM is
93.
Manipulate the following equation to solve for x: a = √bx2
94.
The strength of a semiconductor crystal comes from ……..
95.
A time invariant system is a system whose output
96.
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.
97.
Which of the following should be done to make an unstable system stable ?
98.
Which of the following does not cause losses in optical fiber cables?
99.
To eliminate ghosts in the picture
100.
The sine function is defined as ratio of side lengths,