Welcome to
TheInstrumentGuru.com
Thanks for choosing self assessment Quiz.
Check Your Ability in given 100 Questions.
Result will show after submission of quiz.
DATE:-April 15, 2026
1.
A good control system has all the following features except
3.
Which of the following is an indirect way of generating FM?
4.
Themost commonlyused semiconductoris………..
5.
Addition of pentavalent impurity to a semiconductor creates many……..
6.
For a low level AM system, the amplifiers modulated stage must be
7.
Reactance bipolar transistor
8.
A modem is classified as low speed if data rate handled is
9.
Name the person who was also known as Deshbandhu.
10.
Grand Central Terminal, Park Avenue, New York is the world’s
11.
Which of the following ratios is equivalent to the ratio 25:300 ?
12.
Which of the following should be done to make an unstable system stable ?
13.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
14.
A semiconductor has………… temperature coefficient of resistance.
16.
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.
17.
The strength of a semiconductor crystal comes from ……..
18.
A trivalent impurity has…..valence electrons
19.
Convert an angle of 75 degrees into radians:
20.
In an open loop control system
21.
Double integration of a unit step function would lead to
22.
The random motion of holes and free electrons due to thermal agitation is called ……….
23.
The initial response when tne output is not equal to input is called
24.
When a pure semiconductor is heated,its resistance …………..
25.
A woofer should be fed from the input through a
26.
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
27.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
28.
Duality Theorem / Property of Fourier Transform states that _________
29.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
30.
A control system in which the control action is somehow dependent on the output is known as
31.
The frequency range of 300 kHz to 3000 kHz is known as
32.
To eliminate ghosts in the picture
33.
Which of the following is an open loop control system ?
34.
Complex numbers are used in AC circuit analysis primarily to represent:
35.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
36.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
37.
In Modulation, “carrier” is
38.
Which crop is sown on the largest area in India?
39.
An automatic toaster is a ______ loop control system.
40.
For telegraphy the most commonly used modulation system is
41.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
42.
VSB modulation is preferred in TV because
43.
Which of the following devices are commonly used as error detectors in instruments ?
44.
For attenuation of high frequencies we should use
45.
Which among the following belongs to the category of non-recursive systems?
46.
A time invariant system is a system whose output
47.
A semiconductor has generally……………… valence electrons.
48.
Factor the following polynomial expression: x2 −x−12
49.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
50.
A hole in a semiconductor is defined as…………….
51.
Addition of trivalent impurity to a semiconductor creates many……..
52.
For open control system which of the following statements is incorrect ?
53.
The resistivity of a pure silicon is about……………
54.
Under which conditions does an initially relaxed system become unstable ?
55.
Which of the following does not cause losses in optical fiber cables?
56.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
57.
.... is a closed loop system.
58.
Which of the following statements is correct?
59.
In Pulse Code Modulation system
60.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
61.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
62.
Which type of system response to its input represents the zero value of its initial condition?
63.
A control system working under unknown random actions is called
64.
Which of the following national parks is not listed in a UNESCO World Heritage site?
66.
By which of the following the control action is determined when a man walks along a path ?
67.
In a semiconductor,current conduction is due to ……..
68.
A system is said to be dened as non causal, when
69.
Any externally introduced signal affecting the controlled output is called a
70.
What is the nature of Fourier representation of a discrete & aperiodic signal?
71.
Garampani sanctuary is located at
72.
Positive logic in a logic circuit is one in which
73.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
74.
A system which is linear is said to obey the rules of
75.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
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.
A closed loop system is distinguished from open loop system by which of the following ?
78.
Who is known as “The Saint of Gutters”?
79.
The resistivity of pure germanium under standard conditionsis about……….
80.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
81.
Manipulate the following equation to solve for x: a = √bx2
82.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
83.
A semiconductor is formed by……… bonds.
84.
Commercial Frequency deviation of FM is
86.
The Fourier series of an odd periodic function contains
87.
Which of the following personalities gave ‘The Laws of Heredity’?
88.
The colour of an object is decided by
89.
A hole and electron in close proximity would tend to ……….
90.
A signal g(t) = A then g(t) is a
91.
All causal systems must have the component of
92.
A pentavalent impurity has……….Valence electrons
93.
An n-type semiconductor is………
94.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
95.
Has tendency to oscillate.
96.
Which of the following statements is not necessarily correct for open control system ?
97.
.... is a part of the human temperature control system.
98.
The sine function is defined as ratio of side lengths,
99.
Manipulate the following equation to solve for x:
100.
Damped sinusoids are _____
