A successive approximation type DVM makes use _______

1. of a digital divider

2.of an analog divider

3.of an oscillator

4.of a transducer

Accuracy depends on external supply.

1.True

2.False

3.all of the above

4.None of the mentioned

Electronic multimeter consists of a rectifier.

1. True

2.False

3.all of the above

4.None of the mentioned

Input impedance of a DVM is ______

1.low

2.zero

3.high

4.medium

Input voltage is measured by _______

1.using a voltmeter

2.counting pulses

3.using a multimeter

4.using an ammeter

Ramp type DVM uses ______

1. a linear ramp technique

2.a non-linear ramp technique

3.an exponential ramp technique

4.an asymptotic ramp technique

Resolution of a successive approximation type DVM is given by which of the following relation?

1.R = 1â„10n

2.R = 1â„10

3.R =10n

4.R = 10

Successive approximation type DVM is based on the principle of ______

1. acceleration of an object

2.weight of an object

3. velocity of an object

4.momentum of an object

Time is measured using ______

1.clock

2. logic gates

3.counter

4. flip-flops

What is the role of a rectifier in a multimeter?

1. bias purpose

2.thermal stability

3. rectification

4. inversion

Which determines the rate of measurement cycles?

1.oscillator

2.amplifier

3.mutivibrator

4.oscilloscope

A digital voltmeter reduces parallax error.

1.True

2.False

3.all of the above

4.None of the mentioned

Accuracy of a DVM is ________

1. low

2.high

3.medium

4.zero

Application of an input voltage generates a ________

1. linear signal at the output

2.ramp at the output

3.exponential signal at the output

4. unit step signal at the output

Basic range of DVM is _____

1.1 or 10 V

2.0.1 or 1 V

3.10 or 100 V

4. 100 or 1000 V

D/A converter generates the set pattern successively.

1. True

2. False

3.all of the above

4.None of the mentioned

Digital voltmeters can be used to measure _____

1. voltage only

2.voltage, temperature, pressure, etc

3. voltage and current

4.voltage and resistance

Digital voltmeters converts ______

1.analog to digital signal

2.digital to analog signal

3.current to voltage

4.resistance to voltage

DVM has ____

1.1-3 digits

2.2-5 digits

3.3-6 digits

4.7-10 digits

How is input voltage measured?

1.by using a voltmeter

2.by counting the pulses

3. by using a multimeter

4.by using a transformer

In a DVM, a signal conditioning circuit is used _____

1. to bring current to a suitable limit

2.to bring resistance to a suitable limit

3.to bring resistance to s suitable limit

4. to bring voltage to a suitable limit

In a DVM, a transducer converts ______

1. input to a proportional current

2.input to a proportional power

3. input to a proportional voltage

4. input to a proportional resistance

In a voltage to frequency converter type integrated DVM _____

1.voltage is converted to time

2.voltage is converted to frequency

3. frequency is converted to voltage

4.frequency is converted to time

In DVM the common mode rejection noise is eliminated by ______

1.increasing the signal amplitude

2.making use of a resistance

3.using a transformer

4.guarding

Input range of DVM is _____

1.1 V to 1000 V

2.0.1 V to 10 V

3.0.01 V to 1 V

4.0.001 V to 0.1 V

Input signal magnitude is limited by _____

1.button

2.resistance

3.attenuator

4.voltage

Linear ramp technique is based on _____

1.voltage measurement

2. time measurement

3.current measurement

4. resistance measurement

Multimeter can be used as an ammeter by ____

1.connecting series resistances

2. making use of a transducer

3. making use of a transformer

4.connecting shunts

Multimeter can be used for D.C. voltage measurement by _____

1. connecting series resistances

2.connecting shunt resistances

3.connecting star delta resistances

4. using a switch

Multimeter can be used only for low resistance measurement.

1.True

2.False

3.all of the above

4.None of the mentioned

Normal mode noise can be eliminated through _____

1.attenuation

2.filtering

3.amplification

4. a transformer

Number of pulses is related to frequency.

1.True

2. False

3.all of the above

4.None of the mentioned

Output in digital form canâ€™t be used directly.

1.True

2.False

3.all of the above

4.None of the mentioned

Output of DVM needs ______

1. 4 lines

2.2 lines

3.8 lines

4.16 lines

Resolution depends on _____

1.frequency

2.resistance

3.voltage

4. current

Sawtooth pulses enter into a reversible counter.

1.True

2.False

3.all of the above

4.None of the mentioned

Sensitivity of a successive approximation type DVM is given by which of the following relation?

1. S = fsmin

2.S = fsmin Ã— R

3.S = R

4. S = fsmin â„ R

Speed of a successive approximation type DVM can be improved by making use of ______

1.electrical switches

2.mechanical devices

3.solid state devices

4.transformers

Swing of the ramp is ______

1.Â±12 V

2.Â±10 V

3.Â±8 V

4.Â±5 V

User must wait for a stable reading.

1. True

2. False

3.all of the above

4.None of the mentioned

What is a digitizing circuit?

1.converts digital signal to analog

2.boosts the magnitude of a digital signal

3.attenuates a digital signal

4.converts analog signal to digital

What is the effect of IC chips on DVM?

1.increase in cost

2. increase in power

3.reduction in cost

4. increase in size

What is the effect of the input signal on the output teeth?

1. directly proportional

2.inversely proportional

3.independent

4.square proportional

What is the initial setting made in a multimeter before it is used for measuring resistance?

1.fine adjustment

2.instrument is open circuited

3.voltage is applied

4.zero adjustment

What is the main component of an integrating type DVM?

1.diode

2.amplifier

3.op amp

4. oscillator

What is the role of logic control and sequencer in a successive approximation type DVM?

1.generate analog voltage

2.generate power

3.generate current through resistance

4.generate sequence code

What is the typical value of the multivibrator?

1.10 cycles/second

2.0.2 cycles/second

3.50 cycles/second

4.5 cycles/second

When input is positive, then output is?

1. growing exponential signal

2.decaying exponential signal

3.positive going ramp

4.negative going ramp

Which compares the output in a successive approximation type DVM?

1.op amp

2.diode

3.comparator

4. rectifier

Which is the main device used in the linear ramp technique?

1. exponential ramp

2.asymptotic ramp

3.non-linear ramp

4. linear ramp

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