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DATE:-March 26, 2026
1.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
2.
.... is a closed loop system.
3.
All causal systems must have the component of
4.
A woofer should be fed from the input through a
5.
For attenuation of high frequencies we should use
6.
A semiconductor is formed by……… bonds.
7.
A closed loop system is distinguished from open loop system by which of the following ?
8.
To eliminate ghosts in the picture
9.
Double integration of a unit step function would lead to
10.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
11.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
12.
A system is said to be dened as non causal, when
13.
A control system working under unknown random actions is called
14.
A system which is linear is said to obey the rules of
15.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
16.
Which of the following is an indirect way of generating FM?
17.
The colour of an object is decided by
18.
Has tendency to oscillate.
19.
A control system in which the control action is somehow dependent on the output is known as
21.
Reactance bipolar transistor
22.
A good control system has all the following features except
23.
Which of the following national parks is not listed in a UNESCO World Heritage site?
24.
Which of the following ratios is equivalent to the ratio 25:300 ?
25.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
26.
A hole and electron in close proximity would tend to ……….
27.
The random motion of holes and free electrons due to thermal agitation is called ……….
29.
When a pure semiconductor is heated,its resistance …………..
31.
Which of the following should be done to make an unstable system stable ?
32.
A modem is classified as low speed if data rate handled is
33.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
34.
A trivalent impurity has…..valence electrons
35.
The resistivity of a pure silicon is about……………
36.
Commercial Frequency deviation of FM is
37.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
38.
An n-type semiconductor is………
39.
For open control system which of the following statements is incorrect ?
40.
For a low level AM system, the amplifiers modulated stage must be
41.
Which of the following personalities gave ‘The Laws of Heredity’?
42.
Garampani sanctuary is located at
43.
In an open loop control system
44.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
45.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
46.
Grand Central Terminal, Park Avenue, New York is the world’s
48.
Under which conditions does an initially relaxed system become unstable ?
49.
In Modulation, “carrier” is
50.
For telegraphy the most commonly used modulation system is
51.
VSB modulation is preferred in TV because
52.
Damped sinusoids are _____
53.
What is the nature of Fourier representation of a discrete & aperiodic signal?
54.
The resistivity of pure germanium under standard conditionsis about……….
55.
A hole in a semiconductor is defined as…………….
56.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
57.
Manipulate the following equation to solve for x:
58.
.... is a part of the human temperature control system.
59.
A semiconductor has generally……………… valence electrons.
60.
Addition of pentavalent impurity to a semiconductor creates many……..
61.
Which of the following devices are commonly used as error detectors in instruments ?
62.
Factor the following polynomial expression: x2 −x−12
63.
Which among the following belongs to the category of non-recursive systems?
64.
The strength of a semiconductor crystal comes from ……..
65.
Themost commonlyused semiconductoris………..
66.
Which of the following does not cause losses in optical fiber cables?
67.
The sine function is defined as ratio of side lengths,
68.
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.
69.
Which of the following statements is correct?
70.
Which type of system response to its input represents the zero value of its initial condition?
71.
Complex numbers are used in AC circuit analysis primarily to represent:
72.
Positive logic in a logic circuit is one in which
73.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
74.
A pentavalent impurity has……….Valence electrons
75.
Convert an angle of 75 degrees into radians:
76.
Which crop is sown on the largest area in India?
77.
Which of the following is an open loop control system ?
78.
An automatic toaster is a ______ loop control system.
79.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
80.
Any externally introduced signal affecting the controlled output is called a
81.
A signal g(t) = A then g(t) is a
82.
The initial response when tne output is not equal to input is called
83.
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
84.
The Fourier series of an odd periodic function contains
85.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
86.
Name the person who was also known as Deshbandhu.
87.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
88.
Manipulate the following equation to solve for x: a = √bx2
89.
Which of the following statements is not necessarily correct for open control system ?
90.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
91.
In a semiconductor,current conduction is due to ……..
92.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
93.
Addition of trivalent impurity to a semiconductor creates many……..
94.
In Pulse Code Modulation system
95.
A semiconductor has………… temperature coefficient of resistance.
96.
Who is known as “The Saint of Gutters”?
97.
By which of the following the control action is determined when a man walks along a path ?
98.
The frequency range of 300 kHz to 3000 kHz is known as
99.
Duality Theorem / Property of Fourier Transform states that _________
100.
A time invariant system is a system whose output
