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DATE:-November 22, 2024
1.
Who is known as “The Saint of Gutters”?
2.
Addition of pentavalent impurity to a semiconductor creates many……..
3.
VSB modulation is preferred in TV because
4.
A modem is classified as low speed if data rate handled is
5.
The initial response when tne output is not equal to input is called
6.
In a semiconductor,current conduction is due to ……..
7.
.... is a closed loop system.
8.
An n-type semiconductor is………
9.
A control system working under unknown random actions is called
11.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
12.
A closed loop system is distinguished from open loop system by which of the following ?
13.
Which of the following is an open loop control system ?
14.
A pentavalent impurity has……….Valence electrons
15.
Positive logic in a logic circuit is one in which
16.
To eliminate ghosts in the picture
17.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
18.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
19.
The sine function is defined as ratio of side lengths,
20.
An automatic toaster is a ______ loop control system.
21.
A control system in which the control action is somehow dependent on the output is known as
23.
Which of the following should be done to make an unstable system stable ?
24.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
25.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
26.
Which of the following personalities gave ‘The Laws of Heredity’?
27.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
28.
Which of the following statements is not necessarily correct for open control system ?
29.
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
30.
Factor the following polynomial expression: x2 −x−12
31.
For attenuation of high frequencies we should use
32.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
33.
In Pulse Code Modulation system
34.
The random motion of holes and free electrons due to thermal agitation is called ……….
35.
Convert an angle of 75 degrees into radians:
36.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
37.
Which among the following belongs to the category of non-recursive systems?
38.
Reactance bipolar transistor
39.
The frequency range of 300 kHz to 3000 kHz is known as
40.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
42.
A hole in a semiconductor is defined as…………….
43.
Has tendency to oscillate.
44.
Complex numbers are used in AC circuit analysis primarily to represent:
45.
In an open loop control system
46.
In Modulation, “carrier” is
47.
.... is a part of the human temperature control system.
48.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
49.
The resistivity of a pure silicon is about……………
50.
Themost commonlyused semiconductoris………..
51.
Duality Theorem / Property of Fourier Transform states that _________
52.
For telegraphy the most commonly used modulation system is
53.
For open control system which of the following statements is incorrect ?
54.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
55.
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.
56.
Grand Central Terminal, Park Avenue, New York is the world’s
57.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
58.
Double integration of a unit step function would lead to
59.
The resistivity of pure germanium under standard conditionsis about……….
60.
What is the nature of Fourier representation of a discrete & aperiodic signal?
61.
By which of the following the control action is determined when a man walks along a path ?
62.
Which type of system response to its input represents the zero value of its initial condition?
63.
All causal systems must have the component of
64.
For a low level AM system, the amplifiers modulated stage must be
65.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
66.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
67.
Damped sinusoids are _____
68.
A time invariant system is a system whose output
69.
The Fourier series of an odd periodic function contains
70.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
71.
A woofer should be fed from the input through a
72.
Commercial Frequency deviation of FM is
73.
When a pure semiconductor is heated,its resistance …………..
74.
Which of the following national parks is not listed in a UNESCO World Heritage site?
75.
Name the person who was also known as Deshbandhu.
76.
Which of the following does not cause losses in optical fiber cables?
77.
Manipulate the following equation to solve for x: a = √bx2
78.
Which crop is sown on the largest area in India?
79.
Addition of trivalent impurity to a semiconductor creates many……..
80.
A system is said to be dened as non causal, when
81.
Garampani sanctuary is located at
82.
A signal g(t) = A then g(t) is a
83.
The strength of a semiconductor crystal comes from ……..
84.
Which of the following ratios is equivalent to the ratio 25:300 ?
85.
Which of the following is an indirect way of generating FM?
86.
A hole and electron in close proximity would tend to ……….
87.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
88.
A trivalent impurity has…..valence electrons
89.
A semiconductor has………… temperature coefficient of resistance.
90.
A system which is linear is said to obey the rules of
91.
A semiconductor is formed by……… bonds.
92.
A semiconductor has generally……………… valence electrons.
93.
Which of the following statements is correct?
94.
A good control system has all the following features except
95.
The colour of an object is decided by
96.
Any externally introduced signal affecting the controlled output is called a
97.
Under which conditions does an initially relaxed system become unstable ?
99.
Manipulate the following equation to solve for x:
100.
Which of the following devices are commonly used as error detectors in instruments ?
