R4RIN – MCQs, Mock Tests | Electrical measurements Electrical Measurement MCQ Question Set 11

Time domain oscilloscopes require _____

1. sweep generator
2. oscillator
3. amplifier
4. rectifier

✅ Correct Answer: 1

What is time base generator?

1. time measuring device
2. generator
3. voltage generation device
4. current generation device

✅ Correct Answer: 2

Linear sweep moves spot ________

1. top to bottom
2. right to left
3. left to right
4. bottom to top

✅ Correct Answer: 3

Time base generator controls _______

1. intensity of light
2. current direction
3. voltage magnitude
4. spot movement

✅ Correct Answer: 4

Time dependent waveforms need x-axis for calibration.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Sweep generator works on the principle of _____

1. inductor
2. capacitor
3. resistor
4. diode

✅ Correct Answer: 2

Left to right visibility of the spot is ensured by ______

1. linear waveform
2. linear ramp waveform
3. sinusoidal waveform
4. unit step waveform

✅ Correct Answer: 3

Time base generator circuit resembles a _____

1. regulator
2. rectifier
3. amplifier
4. oscillator

✅ Correct Answer: 4

Sweep generator is a time base generator.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

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

✅ Correct Answer: 1

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

✅ Correct Answer: 2

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

✅ Correct Answer: 3

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

✅ Correct Answer: 1

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

✅ Correct Answer: 2

A time base should have ______

1. non-linearity
2. ramp relationship
3. linearity
4. unit step relationship

✅ Correct Answer: 3

The horizontal amplifier in a CRO can be expanded by _______

1. 5 times
2. 15 times
3. 30 times
4. 10 times

✅ Correct Answer: 4

Sweep rate is controlled by a _______

1. capacitor
2. resistor
3. diode
4. inductor

✅ Correct Answer: 1

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

1. 2
2. 4
3. 6
4. 8

✅ Correct Answer: 1

TTL trigger mode is not used for any purpose.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2

CRO waveform is disturbed due to ________

1. Capacitor banks
2. RTL triggering
3. TTL triggering
4. Voltage sources

✅ Correct Answer: 3

Ringing effects can cause false triggering.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

How can false triggering be prevented?

1. using RTL logic
2. using TTL logic
3. using DTL logic
4. using flip flops

✅ Correct Answer: 2

What is the significance of the TTL trigger mode?

1. initiates interference
2. attenuates the signal
3. prevents interference
4. boosts the signal

✅ Correct Answer: 3

TTL triggering gives a _______

1. attenuated output
2. magnified output
3. unstable output
4. stable output

✅ Correct Answer: 4

Switched sweep mode is also known as ________

1. dual sweep mode
2. single sweep mode
3. quadruple sweep mode
4. triple sweep mode

✅ Correct Answer: 1

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

✅ Correct Answer: 1

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

✅ Correct Answer: 2

Independent traces can be obtained using _________

1. 4 methods
2. 6 methods
3. 2 methods
4. 8 methods

✅ Correct Answer: 3

Two methods are used to generate independent traces.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

How many vertical inputs exist in a dual trace oscilloscope?

1. 8
2. 6
3. 4
4. 2

✅ Correct Answer: 4

After pre-amplification the signals are fed into _______

1. an electronic switch
2. a signal generator
3. a rectifier
4. a regulator

✅ Correct Answer: 1

X-Y mode means _______

1. 2 modes
2. vertical and horizontal
3. x axis and y axis
4. ground and full line supply

✅ Correct Answer: 2

Electronic switch is controlled by ________

1. D flip-flop
2. SR flip-flop
3. T flip-flop
4. JK flip-flop

✅ Correct Answer: 3

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

✅ Correct Answer: 4

Electronic switch is used in a dual trace oscilloscope.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 1

Signals are applied to ______

1. input
2. gain control stage
3. output
4. capacitor

✅ Correct Answer: 2

What adjusts the amplitudes of the signals A and B?

1. L1 and L2
2. C1 and C2
3. R1 and R2
4. Oscillator

✅ Correct Answer: 3

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

✅ Correct Answer: 4

How many switches work at a time?

1. 1
2. 3
3. 2
4. 5

✅ Correct Answer: 1

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

✅ Correct Answer: 2

A multitrace oscilloscope makes use of ______

1. three traces
2. two traces
3. many traces
4. one trace

✅ Correct Answer: 3

A dual beam oscilloscope has _______

1. 2 beams
2. 4 beams
3. 6 beams
4. 8 beams

✅ Correct Answer: 1

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

✅ Correct Answer: 2

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

✅ Correct Answer: 3

Sweep generator is triggered by _______

1. oscillator
2. flip-flop
3. transformer
4. channel A or B

✅ Correct Answer: 4

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

✅ Correct Answer: 1

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

✅ Correct Answer: 2

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

✅ Correct Answer: 3

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

✅ Correct Answer: 1

The memory of a digital storage oscilloscope is limited.

1. True
2. False
3. all of the above
4. None of the mentioned

✅ Correct Answer: 2