

InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
101. |
What is the role of the intensity section in a CRO?(a) decreases the light intensity(b) controls light intensity(c) increases the light intensity(d) keeps the light intensity zeroThis question was posed to me in an interview.This key question is from Front Panel Controls of CRO in chapter Oscilloscopes of Electrical Measurements |
Answer» Right option is (B) CONTROLS light intensity |
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102. |
Front panel of a CRO has _________(a) 4 sections(b) 8 sections(c) 15 sections(d) 20 sectionsI got this question during an interview for a job.My question is based upon Front Panel Controls of CRO topic in chapter Oscilloscopes of Electrical Measurements |
Answer» The correct answer is (a) 4 SECTIONS |
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103. |
What is the effect of the signal delay on the sweep generator?(a) no effect(b) input increases in magnitude(c) output doesn’t get any delay(d) output gets sufficient delayThe question was posed to me in an online quiz.I want to ask this question from Delay Line in division Oscilloscopes of Electrical Measurements |
Answer» The correct answer is (d) OUTPUT gets sufficient delay |
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104. |
Typical values for a distributed parameter delay line are ________(a) Zo = 10 Mῼ and td = 10 nsec/m(b) Zo = 1 kῼ and td = 500 nsec/m(c) Zo = 1000 ῼ and td = 180 nsec/m(d) Zo = 100 Gῼ and td = 275 nsec/mThis question was addressed to me in an interview for internship.I need to ask this question from Delay Line in portion Oscilloscopes of Electrical Measurements |
Answer» Right option is (c) Zo = 1000 ῼ and td = 180 nsec/m |
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105. |
Inductance does not affect a transmission line.(a) True(b) FalseThis question was posed to me in an online quiz.The above asked question is from Delay Line in chapter Oscilloscopes of Electrical Measurements |
Answer» Right choice is (B) False |
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106. |
Distributed parameter delay line is a transmission line.(a) True(b) FalseI have been asked this question during an interview.I need to ask this question from Delay Line in section Oscilloscopes of Electrical Measurements |
Answer» The CORRECT CHOICE is (a) True |
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107. |
Delay for the T section is given by ________(a) ts = ^1⁄fc(b) ts = 1(c) ts = ^1⁄π(d) ts = ^1⁄πfcThis question was posed to me in unit test.This interesting question is from Delay Line topic in division Oscilloscopes of Electrical Measurements |
Answer» Right choice is (d) ts = ^1⁄πfc |
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108. |
Lumped parameter delay line consists of________(a) RC networks(b) RL networks(c) LC networks(d) Resistive networksThis question was posed to me in unit test.This intriguing question originated from Delay Line in portion Oscilloscopes of Electrical Measurements |
Answer» The CORRECT option is (c) LC NETWORKS |
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109. |
T section in a delay circuit of CRO acts as ________(a) high pass filter(b) low pass filter(c) band pass filter(d) band reject filterThe question was asked in an online quiz.The query is from Delay Line topic in portion Oscilloscopes of Electrical Measurements |
Answer» Correct choice is (b) low pass FILTER |
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110. |
CRO uses __________(a) 2 delay lines(b) 3 delay lines(c) 4 delay lines(d) 5 delay linesThe question was posed to me during an interview.My doubt stems from Delay Line topic in portion Oscilloscopes of Electrical Measurements |
Answer» Correct choice is (a) 2 delay lines |
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111. |
Why is a delay line used in a CRO?(a) to boost the signal(b) to distort the signal(c) to provide signal delay(d) for stabilityThe question was posed to me in a job interview.This question is from Simple Oscilloscope in section Oscilloscopes of Electrical Measurements |
Answer» Correct CHOICE is (C) to provide signal delay |
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112. |
BJT is used in the amplifier stage.(a) True(b) FalseThis question was posed to me by my school principal while I was bunking the class.The query is from Simple Oscilloscope in division Oscilloscopes of Electrical Measurements |
Answer» RIGHT answer is (a) True Explanation: A BJT emitter FOLLOWER is used in the AMPLIFIER stage after the FET in order to provide impedance matching to the output of the FET. With RESPECT to the INPUT of the phase-inverter. |
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113. |
Phase inverter is used in an amplifier in the CRO because ___________(a) phase inversion is needed(b) no phase inversion is needed(c) it is needed to operate a push pull(d) it provides voltage stabilityThe question was posed to me in a national level competition.This key question is from Simple Oscilloscope in section Oscilloscopes of Electrical Measurements |
Answer» Right answer is (c) it is needed to operate a push pull |
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114. |
Input stage in the amplifier consists of ___________(a) oscillator(b) attenuator(c) rectifier(d) op ampThis question was addressed to me in exam.My question is based upon Simple Oscilloscope topic in section Oscilloscopes of Electrical Measurements |
Answer» Right ANSWER is (b) attenuator |
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115. |
Amplifier is multiple stage in a CRO.(a) True(b) FalseThe question was asked during an interview.The origin of the question is Simple Oscilloscope in division Oscilloscopes of Electrical Measurements |
Answer» Right choice is (a) True |
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116. |
Role of an attenuator is ___________(a) to boost the signal(b) to distort the signal(c) to remove noise(d) to improve the operationI got this question during a job interview.Question is taken from Simple Oscilloscope topic in section Oscilloscopes of Electrical Measurements |
Answer» CORRECT choice is (d) to IMPROVE the operation The explanation: When we need to MEASURE very high VOLTAGE signals, attenuator stages are used. This is done in order to bring the signal LEVEL within the range of operation of the amplifier. |
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117. |
Amplifier stage is ___________(a) half band(b) full band(c) wide band(d) narrow bandThis question was posed to me in an interview for job.I would like to ask this question from Simple Oscilloscope in section Oscilloscopes of Electrical Measurements |
Answer» Right OPTION is (c) wide band |
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118. |
Input signals are amplified using ___________(a) rectifier(b) amplifier(c) oscillator(d) op ampI have been asked this question in my homework.I'd like to ask this question from Simple Oscilloscope topic in division Oscilloscopes of Electrical Measurements |
Answer» Right answer is (b) AMPLIFIER |
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119. |
What is the role of CRT?(a) to emit electrons(b) to emit protons(c) to emit neutrons(d) to emit alpha particlesThe question was asked during a job interview.This interesting question is from Simple Oscilloscope in portion Oscilloscopes of Electrical Measurements |
Answer» The correct option is (a) to emit electrons |
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120. |
Light produced in a screen is _______(a) disappears immediately(b) does not disappear at all(c) is not visible to the eye(d) disappears slowlyI had been asked this question by my college professor while I was bunking the class.This key question is from Basic Principle of Signal Display topic in chapter Oscilloscopes of Electrical Measurements |
Answer» CORRECT choice is (d) disappears SLOWLY Easy explanation: When the magnitude of the applied voltage reduces to zero, the light produced on the screen DUE to the bombardment of electrons does not disappear IMMEDIATELY and reduces in terms of intensity slowly. |
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121. |
During trace time, voltage is decreasing with time.(a) True(b) FalseI got this question in final exam.The origin of the question is Basic Principle of Signal Display topic in chapter Oscilloscopes of Electrical Measurements |
Answer» The correct answer is (b) False |
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122. |
What is the flyback period?(a) voltage is very high(b) current is very low(c) voltage is zero(d) current is very highI got this question during a job interview.Enquiry is from Basic Principle of Signal Display topic in section Oscilloscopes of Electrical Measurements |
Answer» Right ANSWER is (c) voltage is zero |
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123. |
Sinusoidal voltage is not observed on the screen.(a) True(b) FalseThe question was posed to me at a job interview.Question is from Basic Principle of Signal Display topic in chapter Oscilloscopes of Electrical Measurements |
Answer» Correct OPTION is (B) False |
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124. |
A single cycle appears on the screen when _______(a) sweep and signal frequencies are equal(b) sweep and signal frequencies are not equal(c) sweep and signal frequencies are zero(d) sweep frequency is greater than signal frequencyThe question was asked by my school principal while I was bunking the class.The query is from Basic Principle of Signal Display in chapter Oscilloscopes of Electrical Measurements |
Answer» Correct CHOICE is (a) sweep and signal frequencies are equal |
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125. |
What is done to make the trace horizontal?(a) negative voltage is applied(b) positive voltage is applied(c) no voltage is applied(d) voltage is synchronisedThis question was posed to me during an interview for a job.This is a very interesting question from Basic Principle of Signal Display topic in portion Oscilloscopes of Electrical Measurements |
Answer» Right CHOICE is (d) voltage is synchronised |
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126. |
Spot is displayed only when _______(a) frequencies are different(b) frequencies are zero(c) frequencies are same(d) voltage is highI have been asked this question in an online interview.My question is based upon Basic Principle of Signal Display topic in chapter Oscilloscopes of Electrical Measurements |
Answer» The correct ANSWER is (c) FREQUENCIES are same |
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127. |
Visible spot must be moved in _______(a) two directions(b) one direction(c) three directions(d) four directionsThe question was asked at a job interview.My doubt stems from Basic Principle of Signal Display topic in portion Oscilloscopes of Electrical Measurements |
Answer» Right choice is (b) one DIRECTION |
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128. |
Vertical deflection is given by ________(a) y = Ky Vy(b) y = Ky(c) x = 1(d) y = VyThe question was posed to me in my homework.This intriguing question comes from Cathode Ray Tube topic in portion Oscilloscopes of Electrical Measurements |
Answer» The correct CHOICE is (a) y = Ky Vy |
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129. |
What provides a periodic voltage waveform?(a) sweep generator(b) voltmeter(c) oscillator(d) amplifierThe question was posed to me by my school teacher while I was bunking the class.Question is from Basic Principle of Signal Display topic in division Oscilloscopes of Electrical Measurements |
Answer» The correct option is (a) sweep generator |
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130. |
Horizontal deflection is given by ________(a) x = Kx(b) x = Vx(c) x = 1(d) x = Kx VxThe question was asked during an online interview.My question is taken from Cathode Ray Tube in division Oscilloscopes of Electrical Measurements |
Answer» Correct option is (d) x = KX Vx |
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131. |
Deflection system of a CRT consists of ________(a) 4 plates(b) 6 plates(c) 2 plates(d) 8 platesI have been asked this question in a national level competition.This key question is from Cathode Ray Tube topic in portion Oscilloscopes of Electrical Measurements |
Answer» Correct choice is (c) 2 plates |
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132. |
Focusing and accelerating anodes are ________(a) rectangular(b) cylindrical(c) spherical(d) squareThis question was posed to me in an interview.Query is from Cathode Ray Tube in section Oscilloscopes of Electrical Measurements |
Answer» The correct CHOICE is (B) cylindrical |
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133. |
Electron beam diverges.(a) True(b) FalseThis question was addressed to me during an interview for a job.Question is from Cathode Ray Tube topic in portion Oscilloscopes of Electrical Measurements |
Answer» Correct choice is (a) True |
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134. |
Effect of negative voltage to the grid is ________(a) no force(b) a gravitational force(c) an attractive force(d) a repulsive forceThis question was addressed to me in an interview for internship.The query is from Cathode Ray Tube topic in section Oscilloscopes of Electrical Measurements |
Answer» The correct choice is (d) a repulsive FORCE |
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135. |
What determines light intensity in a CRT?(a) voltage(b) current(c) momentum of electrons(d) fluorescent screenThis question was posed to me in an interview.My query is from Cathode Ray Tube topic in division Oscilloscopes of Electrical Measurements |
Answer» CORRECT answer is (c) momentum of electrons The EXPLANATION is: Momentum of the electrons GIVES the INTENSITY or brightness of the light emitted from the fluorescent screen due to electron bombardment. It is given as the product of the no of electrons and their speed. |
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136. |
Control grid is given ________(a) positive voltage(b) negative voltage(c) neutral voltage(d) zero voltageThis question was addressed to me in an online interview.Query is from Cathode Ray Tube topic in division Oscilloscopes of Electrical Measurements |
Answer» Right answer is (b) NEGATIVE voltage |
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137. |
Electron gun section ________(a) provides sharp beam(b) provides poorly focussed beam(c) doesn’t provide any beam(d) provides electrons onlyThis question was addressed to me by my school teacher while I was bunking the class.Query is from Cathode Ray Tube topic in section Oscilloscopes of Electrical Measurements |
Answer» The correct choice is (a) provides sharp beam |
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138. |
Typically oscilloscope represents __________(a) current and time(b) resistance and time(c) voltage and time(d) power and timeThe question was asked at a job interview.This is a very interesting question from Oscilloscope topic in section Oscilloscopes of Electrical Measurements |
Answer» The correct choice is (c) voltage and TIME |
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139. |
CRT is the heart of CRO.(a) True(b) FalseI got this question in unit test.This intriguing question originated from Oscilloscope in division Oscilloscopes of Electrical Measurements |
Answer» The correct choice is (a) True |
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140. |
Electron beam is deflected in __________(a) 1 direction(b) 4 directions(c) 3 directions(d) 2 directionsThe question was posed to me during an internship interview.I want to ask this question from Oscilloscope in division Oscilloscopes of Electrical Measurements |
Answer» Right OPTION is (d) 2 directions |
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141. |
CRO can’t display microseconds time.(a) True(b) FalseThe question was asked in an interview for job.Query is from Oscilloscope in division Oscilloscopes of Electrical Measurements |
Answer» The CORRECT answer is (B) False |
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142. |
CRO is a __________(a) fast x-y plotter(b) slow x-y plotter(c) medium x-y plotter(d) not a plotterI have been asked this question during an interview for a job.The question is from Oscilloscope in chapter Oscilloscopes of Electrical Measurements |
Answer» The correct ANSWER is (a) fast x-y PLOTTER |
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143. |
Oscilloscope is __________(a) a ohmmeter(b) an ammeter(c) a voltmeter(d) a multimeterThe question was asked in an internship interview.My question comes from Oscilloscope in portion Oscilloscopes of Electrical Measurements |
Answer» Correct ANSWER is (C) a voltmeter |
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144. |
C.R.O gives __________(a) actual representation(b) visual representation(c) approximate representation(d) incorrect representationI got this question during an interview for a job.Asked question is from Oscilloscope in section Oscilloscopes of Electrical Measurements |
Answer» Right option is (b) VISUAL representation |
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145. |
CRO stands for __________(a) Cathode Ray Oscilloscope(b) Current Resistance Oscillator(c) Central Resistance Oscillator(d) Capacitance Resistance OscilloscopeThis question was addressed to me by my college professor while I was bunking the class.This question is from Oscilloscope topic in chapter Oscilloscopes of Electrical Measurements |
Answer» The correct answer is (a) Cathode Ray Oscilloscope |
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