Electrical measurements/Electrical Measurement MCQ Question Set 11 Sample Test,Sample questions

Question:
 A sweep generator can be triggered by an external switch as well.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
 After hold off time, the time base generator is activated immediately.

1. True

2. False

3.all of the above

4.None of the mentioned


Question:
 CRO waveform is disturbed due to ________

1.Capacitor banks

2.RTL triggering

3.TTL triggering

4.Voltage sources


Question:
 Electronic switch is used in a dual trace oscilloscope.

1. True

2. False

3.all of the above

4.None of the mentioned


Question:
 Independent traces can be obtained using _________

1. 4 methods

2.6 methods

3.2 methods

4. 8 methods


Question:
 Linear sweep moves spot ________

1.top to bottom

2.right to left

3. left to right

4. bottom to top


Question:
 Sweep rate is controlled by a _______

1.capacitor

2.resistor

3. diode

4.inductor


Question:
 The memory of a digital storage oscilloscope is limited.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
 Time base generator circuit resembles a _____

1.regulator

2.rectifier

3.amplifier

4.oscillator


Question:
 Time base generator controls _______

1.intensity of light

2.current direction

3. voltage magnitude

4.spot movement


Question:
 Time dependent waveforms need x-axis for calibration.

1. True

2.False

3.all of the above

4.None of the mentioned


Question:
 Time domain oscilloscopes require _____

1. sweep generator

2.oscillator

3.amplifier

4.rectifier


Question:
 TTL trigger mode is not used for any purpose.

1. True

2.False

3.all of the above

4.None of the mentioned


Question:
 What adjusts the amplitudes of the signals A and B?

1.L1 and L2

2.C1 and C2

3.R1 and R2

4.Oscillator


Question:
 What is the problem with using more than one oscilloscopes?

1. measuring the signal’s parameters

2.triggering

3.supply voltage

4.errors in reading


Question:
 X-Y mode means _______

1.2 modes

2.vertical and horizontal

3.x axis and y axis

4.ground and full line supply


Question:
A dual beam oscilloscope has same sweep rates for different channels.

1. True

2.False

3.all of the above

4.None of the mentioned


Question:
A dual beam oscilloscope has _______

1.2 beams

2. 4 beams

3.6 beams

4.8 beams


Question:
A dual beam oscilloscope has _______

1.8 vertical deflection plates

2.6 vertical deflection plates

3.2 vertical deflection plates

4.4 vertical deflection plates


Question:
A multitrace oscilloscope makes use of ______

1. three traces

2. two traces

3.many traces

4.one trace


Question:
A time base should have ______

1.non-linearity

2. ramp relationship

3. linearity

4.unit step relationship


Question:
A trigger circuit is _________

1.is used for triggering the input

2.is used for triggering the output

3.used with time base generator

4.used as a oscillator


Question:
After pre-amplification the signals are fed into _______

1.an electronic switch

2.a signal generator

3.a rectifier

4.a regulator


Question:
Electronic switch is controlled by ________

1. D flip-flop

2. SR flip-flop

3.T flip-flop

4. JK flip-flop


Question:
How can false triggering be prevented?

1.using RTL logic

2. using TTL logic

3. using DTL logic

4.using flip flops


Question:
How many switches work at a time?

1.1

2.3

3.2

4.5


Question:
How many vertical inputs exist in a dual trace oscilloscope?

1.8

2.6

3.4

4.2


Question:
How many, time base generators are provided to a CRO?

1.2

2.4

3.6

4.8


Question:
In a multi-beam oscilloscope ______

1.single beam is produced

2.three beams are produced

3.many beams are produced

4. two beams are produced


Question:
Left to right visibility of the spot is ensured by ______

1. linear waveform

2. linear ramp waveform

3.sinusoidal waveform

4.unit step waveform


Question:
Ringing effects can cause false triggering.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
Signals are applied to ______

1. input

2.gain control stage

3.output

4.capacitor


Question:
Square wave generator doesn’t reproduce the signals on the screen.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
Sweep generator is a time base generator.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
Sweep generator is triggered by _______

1.oscillator

2. flip-flop

3.transformer

4.channel A or B


Question:
Sweep generator works on the principle of _____

1.inductor

2.capacitor

3.resistor

4.diode


Question:
Switched sweep mode is also known as ________

1.dual sweep mode

2.single sweep mode

3. quadruple sweep mode

4. triple sweep mode


Question:
The horizontal amplifier in a CRO can be expanded by _______

1.5 times

2.15 times

3.30 times

4.10 times


Question:
Time base generator takes certain time to begin a new cycle.

1.True

2.False

3.all of the above

4.None of the mentioned


Question:
TTL triggering gives a _______

1.attenuated output

2.magnified output

3.unstable output

4. stable output


Question:
Two methods are used to generate independent traces.

1.True

2. False

3.all of the above

4.None of the mentioned


Question:
Two voltages can be studied simultaneously by making use of _________

1. single electron gun

2.two electron guns

3. four electron guns

4.six electron guns


Question:
What is hold off time in a CRO?

1.time to start a ramp

2. time to end a ramp

3. time to start a unit step

4.time to end a unit step


Question:
What is the main advantage of using a digital storage oscilloscope?

1. uses digital storage

2.uses analog storage

3.uses mixed mode storage

4.uses disc storage


Question:
What is the role of a square wave generator?

1. generates square waves

2.generates triangular waves

3.generates saw-tooth signals

4. generates alternate inputs


Question:
What is the significance of the TTL trigger mode?

1.initiates interference

2.attenuates the signal

3.prevents interference

4.boosts the signal


Question:
What is the wait time in a CRO?

1.time to deactivate time base generator

2.time to activate time base generator

3.time from input to output

4.time from output to input


Question:
What is time base generator?

1.time measuring device

2. generator

3.voltage generation device

4.current generation device


Question:
Which technique of a Dual Trace Oscilloscope maintains the phase between the signals?

1.Analog mode

2. Mixed mode

3.Chop mode

4.Alternate mode


Question:
Why a dual slope oscilloscope is needed?

1.to compare more than two voltages

2. to measure the voltage

3.to measure the current

4.to measure the time


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