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DATE:-April 26, 2024
2.
Which of the following is an open loop control system ?
3.
Under which conditions does an initially relaxed system become unstable ?
4.
Which of the following personalities gave ‘The Laws of Heredity’?
5.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
6.
The resistivity of pure germanium under standard conditionsis about……….
7.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
8.
Who is known as “The Saint of Gutters”?
9.
Themost commonlyused semiconductoris………..
10.
A semiconductor has generally……………… valence electrons.
11.
Which of the following ratios is equivalent to the ratio 25:300 ?
12.
Which of the following statements is not necessarily correct for open control system ?
13.
Which of the following should be done to make an unstable system stable ?
14.
VSB modulation is preferred in TV because
15.
A signal g(t) = A then g(t) is a
16.
The colour of an object is decided by
17.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
18.
A hole in a semiconductor is defined as…………….
20.
For a low level AM system, the amplifiers modulated stage must be
21.
Has tendency to oscillate.
22.
Which of the following is an indirect way of generating FM?
23.
Which of the following statements is correct?
24.
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.
25.
A semiconductor has………… temperature coefficient of resistance.
26.
.... is a part of the human temperature control system.
27.
A hole and electron in close proximity would tend to ……….
28.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
29.
A good control system has all the following features except
30.
Manipulate the following equation to solve for x:
31.
Which of the following national parks is not listed in a UNESCO World Heritage site?
32.
The resistivity of a pure silicon is about……………
33.
What is the nature of Fourier representation of a discrete & aperiodic signal?
34.
Addition of trivalent impurity to a semiconductor creates many……..
35.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
36.
A modem is classified as low speed if data rate handled is
37.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
38.
Which of the following does not cause losses in optical fiber cables?
39.
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
40.
Garampani sanctuary is located at
41.
To eliminate ghosts in the picture
42.
A closed loop system is distinguished from open loop system by which of the following ?
43.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
44.
The sine function is defined as ratio of side lengths,
45.
Manipulate the following equation to solve for x: a = √bx2
46.
Which among the following belongs to the category of non-recursive systems?
47.
Double integration of a unit step function would lead to
48.
An automatic toaster is a ______ loop control system.
49.
For telegraphy the most commonly used modulation system is
50.
The frequency range of 300 kHz to 3000 kHz is known as
51.
A pentavalent impurity has……….Valence electrons
52.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
53.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
54.
When a pure semiconductor is heated,its resistance …………..
55.
For open control system which of the following statements is incorrect ?
56.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
57.
Factor the following polynomial expression: x2 −x−12
58.
A control system working under unknown random actions is called
59.
Grand Central Terminal, Park Avenue, New York is the world’s
60.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
61.
A semiconductor is formed by……… bonds.
63.
Which crop is sown on the largest area in India?
64.
A control system in which the control action is somehow dependent on the output is known as
65.
The Fourier series of an odd periodic function contains
66.
Reactance bipolar transistor
67.
Convert an angle of 75 degrees into radians:
68.
Addition of pentavalent impurity to a semiconductor creates many……..
69.
A system which is linear is said to obey the rules of
71.
A woofer should be fed from the input through a
72.
All causal systems must have the component of
73.
The random motion of holes and free electrons due to thermal agitation is called ……….
74.
Name the person who was also known as Deshbandhu.
75.
The strength of a semiconductor crystal comes from ……..
76.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
77.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
78.
Which type of system response to its input represents the zero value of its initial condition?
79.
Positive logic in a logic circuit is one in which
80.
Complex numbers are used in AC circuit analysis primarily to represent:
81.
For attenuation of high frequencies we should use
82.
A system is said to be dened as non causal, when
83.
In a semiconductor,current conduction is due to ……..
84.
Duality Theorem / Property of Fourier Transform states that _________
85.
The initial response when tne output is not equal to input is called
86.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
87.
Commercial Frequency deviation of FM is
88.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
89.
In Pulse Code Modulation system
90.
In an open loop control system
91.
In Modulation, “carrier” is
92.
Any externally introduced signal affecting the controlled output is called a
93.
.... is a closed loop system.
94.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
95.
Which of the following devices are commonly used as error detectors in instruments ?
96.
By which of the following the control action is determined when a man walks along a path ?
97.
An n-type semiconductor is………
98.
Damped sinusoids are _____
99.
A trivalent impurity has…..valence electrons
100.
A time invariant system is a system whose output
