ADC gives polarity indication.
1. True
2. False
3.all of the above
4.All of the Mentioned
Posted Date:-2022-05-06 05:51:41
Clock pulses are controlled ______
1.automatically
2.using microcontrollers
3.using valves
4.manually
Posted Date:-2022-05-06 05:49:15
Feedback voltage is applied to the ________
1.comparator
2.error amplifier
3.potentiometer
4.sliding contact
Posted Date:-2022-05-06 05:38:10
How is 11.87 V displayed on a 10 V range for a 4 digit display?
1.11.870
2.1.1870
3.118.7
4. 0.1187
Posted Date:-2022-05-06 05:48:22
How to obtain balance?
1. by using a detector
2.by changing the pot setting
3.by supplying voltage
4. by using a transformer
Posted Date:-2022-05-06 05:36:24
In a potentiometric DVM ____
1.voltage is compared
2.current is compared
3.resistance is compared
4.power is compared
Posted Date:-2022-05-06 05:35:59
Input voltage depends on ______
1.resistance
2.capacitance
3.current
4.time-period
Posted Date:-2022-05-06 05:41:56
Noise rejection is poor.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-06 05:42:13
Old information is used to set range relays.
1. True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-06 05:52:50
Output of a digital multimeter is _____
1.mechanical
2. optical
3. electrical
4.analog
Posted Date:-2022-05-06 05:58:42
Sensitivity of a DVM is given by _______
1.S = 1
2. S = (fs)min
3. S = (fs)min × R
4.S = R
Posted Date:-2022-05-06 05:47:28
What is the output voltage in a dual slope integrating type DVM?
1.differential of the input
2.multiple of the input
3.integral of the input
4.zero
Posted Date:-2022-05-06 05:41:30
A 3 digit display DVM with a maximum reading of 1999 indicates _______
1.increase by a factor
2. reduction by a factor
3.no change in value
4.depends on the circuit components
Posted Date:-2022-05-06 05:50:26
A practical Q meter consists of ______
1.Wien bridge oscillator
2.AF oscillator
3.RF oscillator
4.Crystal oscillator
Posted Date:-2022-05-06 06:04:00
A.C. voltages are measured using _______
1.oscillators and op amps
2.rectifiers and filters
3.resistor and capacitor
4.inductor and resistor
Posted Date:-2022-05-06 05:59:57
Accuracy depends on ______
1. input voltage
2. drop across the capacitor
3.magnitude and stability of pulse generator
4.magnitude of the ramp
Posted Date:-2022-05-06 05:35:10
Accuracy of a potentiometric DVM is _____
1. zero
2.medium
3. low
4.high
Posted Date:-2022-05-06 05:39:22
ADC counter ________
1.attenuates the signal
2. converts digital to analog
3.converts analog to digital
4.contains information
Posted Date:-2022-05-06 05:51:13
Analog mulimeters require power supply.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-06 05:55:18
Autoranging means ______
1.automatic ranging
2.fixed ranging
3.automobile ranging
4. constant ranging
Posted Date:-2022-05-06 05:50:01
Basic building blocks of digital multimeter are _____
1. oscillator, amplifier
2.diode, op amp
3.rectifier, schmitt trigger
4.A/D, attenuator, counter
Posted Date:-2022-05-06 05:59:12
Consider a 3 digit display for a DVM with an accuracy of ± 0.5 % for a reading of ± 1 digit. Compute the error for 5 V reading on a 10 V range.
1. ± 10 V
2.± 0.035 V
3.± 0.05 V
4. ± 1 V
Posted Date:-2022-05-06 05:48:49
Current is converted to voltage ______
1. through a voltmeter
2.through a resistance
3.through an ammeter
4.through a galvanometer
Posted Date:-2022-05-06 05:54:13
Digital multimeter is used for _____
1.measuring a.c. and d.c. current, voltage and resistance
2.measuring a.c. current and voltage
3.measuring d.c. current and resistance
4.measuring a.c. voltage and resistance
Posted Date:-2022-05-06 05:53:47
For a value less than 0200, the instrument should ________
1.read values less than 0200 correctly
2. read values randomly
3.automatically switch range
4.should not respond at all
Posted Date:-2022-05-06 05:50:49
For resistance measurement, meter contains ____
1.high current source
2. medium current source
3. low current source
4.low voltage source
Posted Date:-2022-05-06 05:54:35
How is the reference voltage obtained?
1.from a fixed current source
2.from a variable voltage source
3.from a variable current source
4.from a fixed voltage source
Posted Date:-2022-05-06 05:37:48
In a potentiometric DVM, balance is obtained manually.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-06 05:36:45
Integration period is obtained by ______
1.using signal amplitude
2.counting the pulse
3.measuring time
4.by differentiating the signal
Posted Date:-2022-05-06 05:52:07
Integrator’s output is ______
1.attenuated through a filter
2.feedback to the input
3.stored in a flip-flop
4. differentiated
Posted Date:-2022-05-06 05:52:31
Output of the comparator is known as ___
1.amplified signal
2.error signal
3. feedback signal
4.attenuated signal
Posted Date:-2022-05-06 05:38:35
Q factor is also defined as the ratio of _______
1.resistance to reactance
2.reactance to resistance
3. power to voltage
4.current to power
Posted Date:-2022-05-06 06:02:05
Q factor is called ______
1.Quality factor
2.Quantity factor
3.Queen factor
4.Quarter factor
Posted Date:-2022-05-06 06:01:37
Q meter works on the principle of _______
1.barkhausen criterion
2.piezoelectric effect
3. parallel resonance
4.series resonance
Posted Date:-2022-05-06 06:03:15
Quantities are digitised using _______
1.D/A converter
2.oscillator
3.amplifier
4.A/D converter
Posted Date:-2022-05-06 05:55:00
Resistance is measured using _____
1. constant current source
2.constant voltage source
3.variable current source
4. variable voltage source
Posted Date:-2022-05-06 05:59:36
Resolution of a DVM is given by _______
1. R = 1⁄10n
2.R = 1
3. R = 10n
4. R = n⁄10
Posted Date:-2022-05-06 05:46:26
Sensitivity is largest change in input.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-06 05:47:04
Slider movement depends on ______
1.current magnitude
2.resistance magnitude
3.voltage magnitude
4.power magnitude
Posted Date:-2022-05-06 05:38:59
Unknown voltage is _____
1.converted to current
2.boosted
3.filtered
4.measured using a voltmeter
Posted Date:-2022-05-06 05:37:13
Voltage across the shunt is measured by ________
1.voltmeter
2.multimeter
3.thermocouple
4.thermometer
Posted Date:-2022-05-06 06:04:22
What is a Q meter?
1.quality meter
2.quantity meter
3.instrument
4.detector
Posted Date:-2022-05-06 06:02:28
What is the counter value at the beginning?
1.one
2.ten
3. three
4.zero
Posted Date:-2022-05-06 05:43:21
What is the effect of clock on the voltage?
1.voltage doubles with clock input
2.voltage halves with clock input
3.no effect
4. voltage becomes zero with clock input
Posted Date:-2022-05-06 05:42:57
What is the effect of the capacitor on the output?
1.no effect
2.charging effect
3.electrostatic effect
4.magnetic effect
Posted Date:-2022-05-06 05:42:34
What is the maximum count of the counter?
1.9999
2.0
3. 500
4.1000
Posted Date:-2022-05-06 05:43:44
What is the resolution for a 3 digit display?
1.1 %
2.0.1 %
3.0.001 %
4. 10 %
Posted Date:-2022-05-06 05:46:50
What is the resolution of a 3 digit display on 1 V range?
1.1 V
2.0.1 V
3. 0.01 V
4.0.001 V
Posted Date:-2022-05-06 05:47:58
What is the significance of the name dual slope method?
1. it has two slopes
2.it integrates the input twice
3.it uses two inputs
4.it has two outputs
Posted Date:-2022-05-06 05:41:05
Why is dual slope method preferred over ramp techniques?
1.no noise
2. partial noise
3.average noise
4.maximum noise
Posted Date:-2022-05-06 05:40:40