Electrical measurements/Electrical Measurement MCQ Question Set 15 Sample Test,Sample questions

Question:
 Bonded resistance wire strain gauge is of _______

1. 7 types

2. 5 types

3.3 types

4. 9 types

Posted Date:-2022-05-09 06:26:58


Question:
 Gauge factor for a semiconductor strain gauge is _______

1.130 ± 10%

2.30 ± 10%

3. 200 ± 10%

4.10 ± 10%

Posted Date:-2022-05-09 06:36:05


Question:
 In a foil strain gauge, strain is detected through _______

1.a capacitance element

2.a resistance wire

3.a gold foil

4.a metal foil

Posted Date:-2022-05-09 06:29:11


Question:
 In a temperature sensing element _____

1. low value of α is required

2.infinite value of α is required

3.α must be zero

4.high value of α is required

Posted Date:-2022-05-09 06:52:37


Question:
 Load cell is used for the measurement of _______

1.area

2.force

3.mass

4.length

Posted Date:-2022-05-09 06:44:10


Question:
 Load cells are calibrated such that _______

1.force varies inversely with resistance

2.force varies as the square of resistance

3.force remains constant with resistance

4. force varies directly with resistance

Posted Date:-2022-05-09 06:47:26


Question:
 Strain gauges are used for ______

1. small scale measurements

2.dynamic measurements

3.static measurements

4.large scale measurements

Posted Date:-2022-05-09 06:30:43


Question:
 Thermistor has low resistance.

1.True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:58:13


Question:
A semiconductor strain gauge consists of how many dummy gauges?

1.2

2.4

3.6

4.10

Posted Date:-2022-05-09 06:45:29


Question:
A Wheatstone bridge has _______

1. low sensitivity

2.zero sensitivity

3.high sensitivity

4. infinite sensitivity

Posted Date:-2022-05-09 06:46:55


Question:
At small values of voltage, a thermistor _____

1.reaches peak current slowly

2. reaches peak current immediately

3. does not reaches peak current

4.reaches peak current intermediately

Posted Date:-2022-05-09 06:57:55


Question:
Change in resistance is measured using a _______

1. Anderson’s bridge

2.Wheatstone’s bridge

3.Hay’s bridge

4. Maxwell’s bridge

Posted Date:-2022-05-09 06:56:13


Question:
Commonly used electrical strain gauge is _______

1.open type

2.closed type

3. unbounded type

4.bonded type

Posted Date:-2022-05-09 06:27:20


Question:
Electrical strain gauges measure changes in _______

1.resistance, capacitance and inductance

2.resistance only

3. capacitance only

4. inductance only

Posted Date:-2022-05-09 06:27:42


Question:
Etched foil strain gauges are flexible.

1. True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:29:25


Question:
Gauge factor in a strain gauge must be ______

1.high

2. low

3. medium

4. small

Posted Date:-2022-05-09 06:30:20


Question:
How can corrosion be prevented in a resistance thermometer?

1.by immersing the setup in oil

2.by enclosing the elements in a glass tube

3.by using guard rings

4.by painting the elements

Posted Date:-2022-05-09 06:53:30


Question:
Hysteresis characteristics of a semiconductor strain gauge are poor.

1. True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:36:24


Question:
If the sensing element is large, then less amount of heat is required.

1. True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:51:48


Question:
In metallic gauges resistance changes due to _______

1.temperature

2.current

3. voltage

4.dimension

Posted Date:-2022-05-09 06:35:40


Question:
Load cell is sensitive to minute strains.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:47:41


Question:
Mass of only about 20 kg can be measured by a load cell.

1. True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:48:37


Question:
Mechanical gauges measure the _______

1. change in resistance

2.change in length

3. change in area

4. change in inductance

Posted Date:-2022-05-09 06:28:04


Question:
Metals in strain gauge construction have _______

1.non-linear temperature coefficient

2.linear temperature coefficient

3.tangential temperature coefficient

4.exponential temperature coefficient

Posted Date:-2022-05-09 06:46:14


Question:
Most metallic conductors have a ______

1.neutral temperature coefficient of resistance

2.negative temperature coefficient of resistance

3.positive temperature coefficient of resistance

4.zero temperature coefficient of resistance

Posted Date:-2022-05-09 06:52:10


Question:
Nickel and its alloys can be used over a temperature range of _____

1.100 to 450 K

2. 10 to 50 K

3. 0 to 25 K

4.5 to 15 K

Posted Date:-2022-05-09 06:53:02


Question:
Optical gauges make use of _______

1.pulleys

2.electricity

3.mirrors

4.rack and pinion

Posted Date:-2022-05-09 06:28:28


Question:
Platinum is used for industrial applications because ______

1. it is cheap

2.it is available readily

3. it is a noble metal

4.it gives accurate measurements

Posted Date:-2022-05-09 06:50:43


Question:
Proper bonding causes errors in strain gauges.

1. True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:24:42


Question:
Relation between temperature and resistance of a conductor is ________

1. Rt = Rref [1+t]

2.Rt = Rref [1+α∆t]

3. Rt = Rref [1-αt]

4.Rt = Rref [1-t]

Posted Date:-2022-05-09 06:49:48


Question:
Resistance of the strain gauge must be _____

1.zero

2.small

3. large

4.medium

Posted Date:-2022-05-09 06:31:54


Question:
Resistance temperature detector is _____

1.a electrical transducer

2.a mechanical transducer

3.a chemical transducer

4.a physical transducer

Posted Date:-2022-05-09 06:49:20


Question:
Resistance thermometer provides the change in electrical resistance.

1.True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:51:28


Question:
Resistance wire gauges come in _______

1.4 forms

2.2 forms

3.6 forms

4.8 forms

Posted Date:-2022-05-09 06:26:31


Question:
Semiconductor strain gauge uses _______

1.rectifier circuitry

2.power electronics circuitry

3.ordinary bridge circuit

4.bridge circuit with temperature compensation

Posted Date:-2022-05-09 06:45:10


Question:
Semiconductor strain gauges are used for _______

1.low gauge factor values

2.high gauge factor values

3. zero gauge factor value

4.infinite gauge factor value

Posted Date:-2022-05-09 06:34:46


Question:
Sensing element in the thermometer must provide ________

1.small change in resistance

2.no change in resistance

3. large change in resistance

4.infinite change in resistance

Posted Date:-2022-05-09 06:50:14


Question:
Strain gauge has a ______

1.tangential

2. exponential

3.non-linear

4.linear

Posted Date:-2022-05-09 06:33:54


Question:
Strain gauge has a _______

1.low temperature coefficient of resistance

2. high temperature coefficient of resistance

3.zero temperature coefficient of resistance

4.infinite temperature coefficient of resistance

Posted Date:-2022-05-09 06:34:22


Question:
Strain gauge measurement involves _______

1.Wheatstone bridge

2.Kelvin bridge

3.De Sauty’s bridge

4.Anderson bridge

Posted Date:-2022-05-09 06:43:36


Question:
Strain gauge works on the principle of _______

1.piezo-electric effect

2.barkhausen criterion

3.piezo- resistive effect

4. feedback element effect

Posted Date:-2022-05-09 06:35:12


Question:
Strain gauges are classified into ________

1.3 types

2.5 types

3.7 types

4.9 types

Posted Date:-2022-05-09 06:25:29


Question:
Strain is a ______

1.fractional change in volume

2.fractional change in area

3. fractional change in length

4.fractional change in height

Posted Date:-2022-05-09 06:44:39


Question:
Tensile stress decreases the length.

1.True

2. False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:28:44


Question:
Thermistor follows which law for small variations ________

1.Charle’s law

2.KVL

3.KCL

4.Ohm’s law

Posted Date:-2022-05-09 06:57:13


Question:
Thermistor has a resistance of ____

1.250 ῼ to 500 kῼ

2. 50 ῼ to 10 kῼ

3.1 ῼ to 1 kῼ

4.100 ῼ to 100 kῼ

Posted Date:-2022-05-09 06:55:06


Question:
Thermistor is a contraction ______

1.thermal resistor

2. laser resistor

3. electric resistor

4.mechanical resistor

Posted Date:-2022-05-09 06:54:14


Question:
Thermistor material is pressed _____

1.under zero pressure

2.under low pressure

3.under high pressure

4.under low volume

Posted Date:-2022-05-09 06:56:45


Question:
Thermistors are suited for precision temperature measurements.

1. True

2.False

3.all of the above

4.None of the mentioned

Posted Date:-2022-05-09 06:55:50


Question:
Thermistors have ______

1.positive temperature coefficient

2.negative temperature coefficient

3. zero temperature coefficient

4. infinite temperature coefficient

Posted Date:-2022-05-09 06:54:39


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