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

1. 7 types

2. 5 types

3.3 types

4. 9 types

1.130 Â± 10%

2.30 Â± 10%

3. 200 Â± 10%

4.10 Â± 10%

## 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

## Question: ` In a temperature sensing element _____`

1. low value of Î± is required

2.infinite value of Î± is required

3.Î± must be zero

4.high value of Î± is required

1.area

2.force

3.mass

4.length

## 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

## Question: ` Strain gauges are used for ______`

1. small scale measurements

2.dynamic measurements

3.static measurements

4.large scale measurements

## Question: ` Thermistor has low resistance.`

1.True

2. False

3.all of the above

4.None of the mentioned

1.2

2.4

3.6

4.10

## Question: `A Wheatstone bridge has _______`

1. low sensitivity

2.zero sensitivity

3.high sensitivity

4. infinite sensitivity

## 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

## Question: `Change in resistance is measured using a _______`

1. Andersonâ€™s bridge

2.Wheatstoneâ€™s bridge

3.Hayâ€™s bridge

4. Maxwellâ€™s bridge

## Question: `Commonly used electrical strain gauge is _______`

1.open type

2.closed type

3. unbounded type

4.bonded type

## Question: `Electrical strain gauges measure changes in _______`

1.resistance, capacitance and inductance

2.resistance only

3. capacitance only

4. inductance only

## Question: `Etched foil strain gauges are flexible.`

1. True

2. False

3.all of the above

4.None of the mentioned

1.high

2. low

3. medium

4. small

## 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

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

1. True

2.False

3.all of the above

4.None of the mentioned

## 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

1.temperature

2.current

3. voltage

4.dimension

## Question: `Load cell is sensitive to minute strains.`

1.True

2.False

3.all of the above

4.None of the mentioned

## 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

## Question: `Mechanical gauges measure the _______`

1. change in resistance

2.change in length

3. change in area

4. change in inductance

## Question: `Metals in strain gauge construction have _______`

1.non-linear temperature coefficient

2.linear temperature coefficient

3.tangential temperature coefficient

4.exponential temperature coefficient

## 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

1.100 to 450 K

2. 10 to 50 K

3. 0 to 25 K

4.5 to 15 K

## Question: `Optical gauges make use of _______`

1.pulleys

2.electricity

3.mirrors

4.rack and pinion

## Question: `Platinum is used for industrial applications because ______`

1. it is cheap

3. it is a noble metal

4.it gives accurate measurements

## Question: `Proper bonding causes errors in strain gauges.`

1. True

2. False

3.all of the above

4.None of the mentioned

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

1. Rt = Rref [1+t]

2.Rt = Rref [1+Î±âˆ†t]

3. Rt = Rref [1-Î±t]

4.Rt = Rref [1-t]

1.zero

2.small

3. large

4.medium

## Question: `Resistance temperature detector is _____`

1.a electrical transducer

2.a mechanical transducer

3.a chemical transducer

4.a physical transducer

## Question: `Resistance thermometer provides the change in electrical resistance.`

1.True

2.False

3.all of the above

4.None of the mentioned

1.4 forms

2.2 forms

3.6 forms

4.8 forms

## Question: `Semiconductor strain gauge uses _______`

1.rectifier circuitry

2.power electronics circuitry

3.ordinary bridge circuit

4.bridge circuit with temperature compensation

## 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

## 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

1.tangential

2. exponential

3.non-linear

4.linear

## 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

## Question: `Strain gauge measurement involves _______`

1.Wheatstone bridge

2.Kelvin bridge

3.De Sautyâ€™s bridge

4.Anderson bridge

## Question: `Strain gauge works on the principle of _______`

1.piezo-electric effect

2.barkhausen criterion

3.piezo- resistive effect

4. feedback element effect

1.3 types

2.5 types

3.7 types

4.9 types

## Question: `Strain is a ______`

1.fractional change in volume

2.fractional change in area

3. fractional change in length

4.fractional change in height

## Question: `Tensile stress decreases the length.`

1.True

2. False

3.all of the above

4.None of the mentioned

1.Charleâ€™s law

2.KVL

3.KCL

4.Ohmâ€™s law

## Question: `Thermistor has a resistance of ____`

1.250 á¿¼ to 500 ká¿¼

2. 50 á¿¼ to 10 ká¿¼

3.1 á¿¼ to 1 ká¿¼

4.100 á¿¼ to 100 ká¿¼

## Question: `Thermistor is a contraction ______`

1.thermal resistor

2. laser resistor

3. electric resistor

4.mechanical resistor

## Question: `Thermistor material is pressed _____`

1.under zero pressure

2.under low pressure

3.under high pressure

4.under low volume

## Question: `Thermistors are suited for precision temperature measurements.`

1. True

2.False

3.all of the above

4.None of the mentioned

## Question: `Thermistors have ______`

1.positive temperature coefficient

2.negative temperature coefficient

3. zero temperature coefficient

4. infinite temperature coefficient

## More MCQS

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