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DATE:-February 13, 2026
1.
A semiconductor has………… temperature coefficient of resistance.
2.
Grand Central Terminal, Park Avenue, New York is the world’s
3.
Convert an angle of 75 degrees into radians:
4.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
5.
Has tendency to oscillate.
6.
.... is a closed loop system.
7.
In an open loop control system
8.
In Modulation, “carrier” is
9.
A control system in which the control action is somehow dependent on the output is known as
10.
Damped sinusoids are _____
11.
A signal g(t) = A then g(t) is a
12.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
14.
An n-type semiconductor is………
15.
By which of the following the control action is determined when a man walks along a path ?
16.
Reactance bipolar transistor
17.
The random motion of holes and free electrons due to thermal agitation is called ……….
18.
The resistivity of a pure silicon is about……………
19.
The resistivity of pure germanium under standard conditionsis about……….
20.
Which crop is sown on the largest area in India?
21.
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
22.
Themost commonlyused semiconductoris………..
23.
Which type of system response to its input represents the zero value of its initial condition?
24.
Which of the following statements is correct?
25.
Positive logic in a logic circuit is one in which
26.
For attenuation of high frequencies we should use
27.
Which of the following should be done to make an unstable system stable ?
28.
Duality Theorem / Property of Fourier Transform states that _________
29.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
30.
The strength of a semiconductor crystal comes from ……..
31.
The Fourier series of an odd periodic function contains
32.
A time invariant system is a system whose output
33.
The colour of an object is decided by
34.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
35.
Manipulate the following equation to solve for x: a = √bx2
36.
For telegraphy the most commonly used modulation system is
37.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
38.
A closed loop system is distinguished from open loop system by which of the following ?
39.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
40.
Which of the following statements is not necessarily correct for open control system ?
41.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
42.
Manipulate the following equation to solve for x:
44.
In Pulse Code Modulation system
45.
For open control system which of the following statements is incorrect ?
46.
A modem is classified as low speed if data rate handled is
48.
A hole and electron in close proximity would tend to ……….
49.
Which of the following is an open loop control system ?
50.
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.
51.
Which of the following does not cause losses in optical fiber cables?
52.
An automatic toaster is a ______ loop control system.
53.
The initial response when tne output is not equal to input is called
54.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
55.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
56.
Which of the following is an indirect way of generating FM?
57.
What is the nature of Fourier representation of a discrete & aperiodic signal?
58.
Any externally introduced signal affecting the controlled output is called a
59.
Which of the following devices are commonly used as error detectors in instruments ?
60.
.... is a part of the human temperature control system.
61.
Complex numbers are used in AC circuit analysis primarily to represent:
62.
Under which conditions does an initially relaxed system become unstable ?
63.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
64.
When a pure semiconductor is heated,its resistance …………..
65.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
66.
In a semiconductor,current conduction is due to ……..
67.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
68.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
69.
Garampani sanctuary is located at
70.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
71.
The sine function is defined as ratio of side lengths,
73.
Addition of pentavalent impurity to a semiconductor creates many……..
74.
A good control system has all the following features except
75.
Which of the following national parks is not listed in a UNESCO World Heritage site?
76.
For a low level AM system, the amplifiers modulated stage must be
77.
A trivalent impurity has…..valence electrons
78.
A system is said to be dened as non causal, when
79.
A control system working under unknown random actions is called
80.
The frequency range of 300 kHz to 3000 kHz is known as
81.
A hole in a semiconductor is defined as…………….
82.
VSB modulation is preferred in TV because
83.
A system which is linear is said to obey the rules of
84.
Name the person who was also known as Deshbandhu.
85.
Which among the following belongs to the category of non-recursive systems?
86.
A semiconductor has generally……………… valence electrons.
87.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
88.
All causal systems must have the component of
89.
Double integration of a unit step function would lead to
90.
Addition of trivalent impurity to a semiconductor creates many……..
91.
Factor the following polynomial expression: x2 −x−12
92.
Commercial Frequency deviation of FM is
93.
Which of the following personalities gave ‘The Laws of Heredity’?
94.
A semiconductor is formed by……… bonds.
95.
Which of the following ratios is equivalent to the ratio 25:300 ?
96.
A pentavalent impurity has……….Valence electrons
97.
A woofer should be fed from the input through a
98.
Who is known as “The Saint of Gutters”?
99.
To eliminate ghosts in the picture
100.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
