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DATE:-March 5, 2026
1.
Factor the following polynomial expression: x2 −x−12
3.
Which of the following statements is not necessarily correct for open control system ?
4.
The initial response when tne output is not equal to input is called
5.
Commercial Frequency deviation of FM is
6.
In Modulation, “carrier” is
7.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
8.
Duality Theorem / Property of Fourier Transform states that _________
10.
The Fourier series of an odd periodic function contains
11.
Manipulate the following equation to solve for x:
12.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
13.
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
14.
Convert an angle of 75 degrees into radians:
15.
In a semiconductor,current conduction is due to ……..
16.
The resistivity of a pure silicon is about……………
17.
By which of the following the control action is determined when a man walks along a path ?
18.
Positive logic in a logic circuit is one in which
19.
When a pure semiconductor is heated,its resistance …………..
20.
Which crop is sown on the largest area in India?
21.
Which of the following statements is correct?
22.
The strength of a semiconductor crystal comes from ……..
23.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
25.
Which of the following is an indirect way of generating FM?
26.
Manipulate the following equation to solve for x: a = √bx2
27.
The colour of an object is decided by
28.
VSB modulation is preferred in TV because
29.
A trivalent impurity has…..valence electrons
30.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
31.
Name the person who was also known as Deshbandhu.
32.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
33.
Damped sinusoids are _____
34.
Which among the following belongs to the category of non-recursive systems?
35.
A semiconductor has………… temperature coefficient of resistance.
36.
A control system in which the control action is somehow dependent on the output is known as
37.
A system which is linear is said to obey the rules of
38.
A pentavalent impurity has……….Valence electrons
39.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
40.
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.
41.
For telegraphy the most commonly used modulation system is
42.
Has tendency to oscillate.
43.
A hole and electron in close proximity would tend to ……….
44.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
45.
Double integration of a unit step function would lead to
46.
The resistivity of pure germanium under standard conditionsis about……….
47.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
48.
For attenuation of high frequencies we should use
49.
Addition of trivalent impurity to a semiconductor creates many……..
50.
To eliminate ghosts in the picture
51.
Which of the following personalities gave ‘The Laws of Heredity’?
52.
An automatic toaster is a ______ loop control system.
53.
A modem is classified as low speed if data rate handled is
54.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
55.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
56.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
57.
All causal systems must have the component of
58.
In an open loop control system
59.
For open control system which of the following statements is incorrect ?
60.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
61.
Complex numbers are used in AC circuit analysis primarily to represent:
62.
A closed loop system is distinguished from open loop system by which of the following ?
63.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
64.
For a low level AM system, the amplifiers modulated stage must be
65.
Grand Central Terminal, Park Avenue, New York is the world’s
66.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
67.
An n-type semiconductor is………
68.
Which of the following does not cause losses in optical fiber cables?
69.
In Pulse Code Modulation system
70.
Which of the following ratios is equivalent to the ratio 25:300 ?
71.
A signal g(t) = A then g(t) is a
72.
Which of the following devices are commonly used as error detectors in instruments ?
73.
A semiconductor has generally……………… valence electrons.
74.
.... is a part of the human temperature control system.
75.
A system is said to be dened as non causal, when
76.
The sine function is defined as ratio of side lengths,
77.
Which of the following is an open loop control system ?
78.
The frequency range of 300 kHz to 3000 kHz is known as
79.
Reactance bipolar transistor
80.
Which of the following should be done to make an unstable system stable ?
81.
Which type of system response to its input represents the zero value of its initial condition?
82.
Themost commonlyused semiconductoris………..
83.
The random motion of holes and free electrons due to thermal agitation is called ……….
84.
A semiconductor is formed by……… bonds.
85.
A woofer should be fed from the input through a
86.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
87.
A good control system has all the following features except
88.
Which of the following national parks is not listed in a UNESCO World Heritage site?
89.
What is the nature of Fourier representation of a discrete & aperiodic signal?
90.
A hole in a semiconductor is defined as…………….
91.
Who is known as “The Saint of Gutters”?
92.
Addition of pentavalent impurity to a semiconductor creates many……..
93.
A control system working under unknown random actions is called
94.
.... is a closed loop system.
95.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
97.
Any externally introduced signal affecting the controlled output is called a
98.
Under which conditions does an initially relaxed system become unstable ?
99.
A time invariant system is a system whose output
100.
Garampani sanctuary is located at
