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:-September 10, 2026
1.
The random motion of holes and free electrons due to thermal agitation is called ……….
2.
When a pentavalent impurity is added to a pure semiconductor,it becomes……
3.
A semiconductor has………… temperature coefficient of resistance.
5.
Unilateral Laplace Transform is applicable for the determination of linear constant coecient dierential equations with ________
6.
Two rectangular waveforms of duration t1 and t2 seconds are convolved. What is the shape of the resulting waveform?
7.
The strength of a semiconductor crystal comes from ……..
8.
Which of the following statements is not necessarily correct for open control system ?
10.
A semiconductor has generally……………… valence electrons.
11.
Positive logic in a logic circuit is one in which
12.
The colour of an object is decided by
13.
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.
14.
Which property of periodic signal in DTFS gets completely claried /identied by the equation x (n – n0 )?
15.
Convert an angle of 75 degrees into radians:
16.
Which of the following statements is correct?
17.
A control system in which the control action is somehow dependent on the output is known as
18.
Which among the following belongs to the category of non-recursive systems?
19.
A semiconductor is formed by……… bonds.
20.
Grand Central Terminal, Park Avenue, New York is the world’s
21.
Which of the following ratios is equivalent to the ratio 25:300 ?
22.
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
23.
A modem is classified as low speed if data rate handled is
24.
All causal systems must have the component of
25.
Who is known as “The Saint of Gutters”?
26.
Which of the following does not cause losses in optical fiber cables?
27.
Complex numbers are used in AC circuit analysis primarily to represent:
28.
Factor the following polynomial expression: x2 −x−12
29.
Which among the following operations is/are not involved /associated with the computation process of linear convolution?
30.
To eliminate ghosts in the picture
31.
The resistivity of a pure silicon is about……………
32.
The Fourier series of an odd periodic function contains
33.
Solve for both x and y in this simultaneous system of equations: x + 3y = −1, 4x−y = 9
34.
By which of the following the control action is determined when a man walks along a path ?
35.
.... is a part of the human temperature control system.
36.
Duality Theorem / Property of Fourier Transform states that _________
37.
For telegraphy the most commonly used modulation system is
38.
In Pulse Code Modulation system
39.
In a semiconductor,current conduction is due to ……..
40.
In Modulation, “carrier” is
41.
A control system working under unknown random actions is called
42.
Manipulate the following equation to solve for x: a = √bx2
43.
Which crop is sown on the largest area in India?
44.
If output power of a radio receiver is doubled, its volume is increased by __________ dB.
45.
In closed loop control system, with positive value of feedback gain the overall gain of the system will
46.
Themost commonlyused semiconductoris………..
47.
Which of the following should be done to make an unstable system stable ?
48.
Addition of trivalent impurity to a semiconductor creates many……..
49.
Manipulate the following equation to solve for x:
50.
The impurity level in an extrinsic semiconductor is about…..of pure semiconductor.
51.
For attenuation of high frequencies we should use
52.
An automatic toaster is a ______ loop control system.
53.
Name the person who was also known as Deshbandhu.
55.
A system which is linear is said to obey the rules of
56.
Has tendency to oscillate.
57.
A time invariant system is a system whose output
58.
A signal g(t) = A then g(t) is a
59.
Which of the following devices are commonly used as error detectors in instruments ?
60.
Garampani sanctuary is located at
61.
A woofer should be fed from the input through a
62.
Damped sinusoids are _____
63.
A closed loop system is distinguished from open loop system by which of the following ?
64.
Which property of fourier transform gives rise to an additional phase shift of -2? ftd for the generated time delay in the communication
65.
A hole in a semiconductor is defined as…………….
66.
As the doping to a pure semiconductor increases,the bulk resistance of the semiconductor………..
67.
Eritrea, which became the 182nd member of the United Nations in 1993, is on the continent of
68.
The sine function is defined as ratio of side lengths,
69.
The frequency range of 300 kHz to 3000 kHz is known as
70.
An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.
71.
A system is said to be dened as non causal, when
72.
The initial response when tne output is not equal to input is called
73.
Reactance bipolar transistor
74.
Which of the following personalities gave ‘The Laws of Heredity’?
75.
Which of the following national parks is not listed in a UNESCO World Heritage site?
76.
Which of the following is an open loop control system ?
78.
.... is a closed loop system.
79.
What is the nature of Fourier representation of a discrete & aperiodic signal?
80.
Double integration of a unit step function would lead to
81.
A cordless telephone using separate frequencies for transmission in base and portable units is known as
82.
As per time displacement theorem in Laplace transformation, displacement in the time domain by T becomes
83.
When a pure semiconductor is heated,its resistance …………..
84.
Which of the following is an indirect way of generating FM?
85.
Any externally introduced signal affecting the controlled output is called a
86.
An n-type semiconductor is………
87.
For open control system which of the following statements is incorrect ?
88.
A car is running at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?
89.
Commercial Frequency deviation of FM is
90.
For a low level AM system, the amplifiers modulated stage must be
91.
Under which conditions does an initially relaxed system become unstable ?
92.
The resistivity of pure germanium under standard conditionsis about……….
93.
Which type of system response to its input represents the zero value of its initial condition?
94.
Addition of pentavalent impurity to a semiconductor creates many……..
95.
A hole and electron in close proximity would tend to ……….
96.
A good control system has all the following features except
97.
In an open loop control system
98.
A trivalent impurity has…..valence electrons
99.
A pentavalent impurity has……….Valence electrons
100.
VSB modulation is preferred in TV because
