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DATE:-November 16, 2026
1.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
2.
A system is said to be dened as non causal, when
3.
Manipulate the following equation to solve for x: a = √bx2
4.
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
5.
All causal systems must have the component of
6.
Damped sinusoids are _____
7.
Name the person who was also known as Deshbandhu.
8.
A hole in a semiconductor is defined as…………….
9.
A trivalent impurity has…..valence electrons
10.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
11.
A hole and electron in close proximity would tend to ……….
12.
Duality Theorem / Property of Fourier Transform states that _________
15.
A closed loop system is distinguished from open loop system by which of the following ?
16.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
17.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
18.
Complex numbers are used in AC circuit analysis primarily to represent:
19.
By which of the following the control action is determined when a man walks along a path ?
20.
Under which conditions does an initially relaxed system become unstable ?
21.
For telegraphy the most commonly used modulation system is
22.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
23.
Which of the following does not cause losses in optical fiber cables?
24.
In a semiconductor,current conduction is due to ……..
25.
A pentavalent impurity has……….Valence electrons
26.
For a low level AM system, the amplifiers modulated stage must be
27.
Addition of pentavalent impurity to a semiconductor creates many……..
28.
A semiconductor has generally……………… valence electrons.
29.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
30.
Which type of system response to its input represents the zero value of its initial condition?
31.
The random motion of holes and free electrons due to thermal agitation is called ……….
32.
Manipulate the following equation to solve for x:
33.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
34.
Double integration of a unit step function would lead to
35.
Which crop is sown on the largest area in India?
36.
Which of the following should be done to make an unstable system stable ?
37.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
38.
The colour of an object is decided by
39.
Which of the following is an open loop control system ?
40.
A time invariant system is a system whose output
41.
Who is known as “The Saint of Gutters”?
42.
For open control system which of the following statements is incorrect ?
43.
Addition of trivalent impurity to a semiconductor creates many……..
44.
.... is a part of the human temperature control system.
45.
A woofer should be fed from the input through a
46.
The frequency range of 300 kHz to 3000 kHz is known as
47.
An automatic toaster is a ______ loop control system.
48.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
49.
The sine function is defined as ratio of side lengths,
50.
Convert an angle of 75 degrees into radians:
51.
An n-type semiconductor is………
52.
Reactance bipolar transistor
53.
Which of the following statements is not necessarily correct for open control system ?
54.
Which of the following personalities gave ‘The Laws of Heredity’?
55.
Which of the following ratios is equivalent to the ratio 25:300 ?
56.
A signal g(t) = A then g(t) is a
57.
Which of the following is an indirect way of generating FM?
58.
Commercial Frequency deviation of FM is
59.
Positive logic in a logic circuit is one in which
60.
Themost commonlyused semiconductoris………..
61.
Any externally introduced signal affecting the controlled output is called a
62.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
63.
In Modulation, “carrier” is
64.
Has tendency to oscillate.
65.
Garampani sanctuary is located at
66.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
67.
A system which is linear is said to obey the rules of
68.
The initial response when tne output is not equal to input is called
69.
.... is a closed loop system.
70.
The strength of a semiconductor crystal comes from ……..
71.
A control system working under unknown random actions is called
72.
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.
74.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
75.
Factor the following polynomial expression: x2 −x−12
76.
A semiconductor is formed by……… bonds.
77.
Which of the following devices are commonly used as error detectors in instruments ?
78.
In an open loop control system
79.
The Fourier series of an odd periodic function contains
80.
Grand Central Terminal, Park Avenue, New York is the world’s
81.
A control system in which the control action is somehow dependent on the output is known as
82.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
83.
A semiconductor has………… temperature coefficient of resistance.
84.
A modem is classified as low speed if data rate handled is
85.
For attenuation of high frequencies we should use
86.
To eliminate ghosts in the picture
87.
Which among the following belongs to the category of non-recursive systems?
88.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
89.
The resistivity of pure germanium under standard conditionsis about……….
91.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
92.
A good control system has all the following features except
93.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
94.
In Pulse Code Modulation system
95.
The resistivity of a pure silicon is about……………
96.
What is the nature of Fourier representation of a discrete & aperiodic signal?
97.
Which of the following national parks is not listed in a UNESCO World Heritage site?
98.
Which of the following statements is correct?
99.
VSB modulation is preferred in TV because
100.
When a pure semiconductor is heated,its resistance …………..
