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DATE:-September 13, 2026
1.
A woofer should be fed from the input through a
2.
Which of the following statements is not necessarily correct for open control system ?
3.
A control system working under unknown random actions is called
4.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
5.
The frequency range of 300 kHz to 3000 kHz is known as
6.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
7.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
8.
Which of the following is an indirect way of generating FM?
9.
Addition of pentavalent impurity to a semiconductor creates many……..
10.
.... is a closed loop system.
11.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
12.
Reactance bipolar transistor
13.
The colour of an object is decided by
14.
Complex numbers are used in AC circuit analysis primarily to represent:
15.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
16.
To eliminate ghosts in the picture
17.
An n-type semiconductor is………
18.
Which of the following devices are commonly used as error detectors in instruments ?
19.
For open control system which of the following statements is incorrect ?
20.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
21.
In an open loop control system
22.
By which of the following the control action is determined when a man walks along a path ?
23.
The random motion of holes and free electrons due to thermal agitation is called ……….
24.
Which crop is sown on the largest area in India?
25.
An automatic toaster is a ______ loop control system.
26.
A pentavalent impurity has……….Valence electrons
27.
For attenuation of high frequencies we should use
28.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
29.
Manipulate the following equation to solve for x: a = √bx2
30.
The sine function is defined as ratio of side lengths,
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.
A system is said to be dened as non causal, when
33.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
34.
The initial response when tne output is not equal to input is called
35.
Name the person who was also known as Deshbandhu.
36.
Manipulate the following equation to solve for x:
37.
A hole and electron in close proximity would tend to ……….
38.
A semiconductor is formed by……… bonds.
39.
A modem is classified as low speed if data rate handled is
40.
A time invariant system is a system whose output
41.
What is the nature of Fourier representation of a discrete & aperiodic signal?
42.
Which of the following ratios is equivalent to the ratio 25:300 ?
43.
Garampani sanctuary is located at
44.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
46.
A closed loop system is distinguished from open loop system by which of the following ?
47.
Which of the following is an open loop control system ?
48.
When a pure semiconductor is heated,its resistance …………..
49.
In a semiconductor,current conduction is due to ……..
50.
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
51.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
52.
Addition of trivalent impurity to a semiconductor creates many……..
53.
Which of the following personalities gave ‘The Laws of Heredity’?
54.
For telegraphy the most commonly used modulation system is
55.
All causal systems must have the component of
56.
Positive logic in a logic circuit is one in which
57.
A semiconductor has generally……………… valence electrons.
58.
Which of the following national parks is not listed in a UNESCO World Heritage site?
59.
A hole in a semiconductor is defined as…………….
60.
Themost commonlyused semiconductoris………..
61.
Under which conditions does an initially relaxed system become unstable ?
62.
Any externally introduced signal affecting the controlled output is called a
63.
A system which is linear is said to obey the rules of
64.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
65.
Which of the following should be done to make an unstable system stable ?
66.
Factor the following polynomial expression: x2 −x−12
67.
A semiconductor has………… temperature coefficient of resistance.
68.
VSB modulation is preferred in TV because
69.
A signal g(t) = A then g(t) is a
70.
A trivalent impurity has…..valence electrons
71.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
72.
Duality Theorem / Property of Fourier Transform states that _________
73.
In Modulation, “carrier” is
74.
A good control system has all the following features except
75.
Double integration of a unit step function would lead to
76.
The resistivity of pure germanium under standard conditionsis about……….
78.
Which type of system response to its input represents the zero value of its initial condition?
79.
Which among the following belongs to the category of non-recursive systems?
80.
Which of the following does not cause losses in optical fiber cables?
82.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
83.
Has tendency to oscillate.
84.
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.
85.
Who is known as “The Saint of Gutters”?
86.
Which of the following statements is correct?
87.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
88.
Damped sinusoids are _____
89.
Commercial Frequency deviation of FM is
90.
The strength of a semiconductor crystal comes from ……..
91.
Grand Central Terminal, Park Avenue, New York is the world’s
92.
The resistivity of a pure silicon is about……………
93.
In Pulse Code Modulation system
94.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
95.
For a low level AM system, the amplifiers modulated stage must be
96.
Convert an angle of 75 degrees into radians:
98.
The Fourier series of an odd periodic function contains
99.
.... is a part of the human temperature control system.
100.
A control system in which the control action is somehow dependent on the output is known as
