Bonded resistance wire strain gauge is of _______
1. 7 types
2. 5 types
3.3 types
4. 9 types
Posted Date:-2022-05-09 13:26:58
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 13:36:05
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 13:29:11
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 13:52:37
Load cell is used for the measurement of _______
1.area
2.force
3.mass
4.length
Posted Date:-2022-05-09 13:44:10
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 13:47:26
Strain gauges are used for ______
1. small scale measurements
2.dynamic measurements
3.static measurements
4.large scale measurements
Posted Date:-2022-05-09 13:30:43
Thermistor has low resistance.
1.True
2. False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 13:58:13
A semiconductor strain gauge consists of how many dummy gauges?
1.2
2.4
3.6
4.10
Posted Date:-2022-05-09 13:45:29
A Wheatstone bridge has _______
1. low sensitivity
2.zero sensitivity
3.high sensitivity
4. infinite sensitivity
Posted Date:-2022-05-09 13:46:55
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 13:57:55
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 13:56:13
Commonly used electrical strain gauge is _______
1.open type
2.closed type
3. unbounded type
4.bonded type
Posted Date:-2022-05-09 13:27:20
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 13:27:42
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 13:29:25
Gauge factor in a strain gauge must be ______
1.high
2. low
3. medium
4. small
Posted Date:-2022-05-09 13:30:20
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 13:53:30
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 13:36:24
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 13:51:48
In metallic gauges resistance changes due to _______
1.temperature
2.current
3. voltage
4.dimension
Posted Date:-2022-05-09 13:35:40
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 13:47:41
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 13:48:37
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 13:28:04
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 13:46:14
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 13:52:10
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 13:53:02
Optical gauges make use of _______
1.pulleys
2.electricity
3.mirrors
4.rack and pinion
Posted Date:-2022-05-09 13:28:28
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 13:50:43
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 13:24:42
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 13:49:48
Resistance of the strain gauge must be _____
1.zero
2.small
3. large
4.medium
Posted Date:-2022-05-09 13:31:54
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 13:49:20
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 13:51:28
Resistance wire gauges come in _______
1.4 forms
2.2 forms
3.6 forms
4.8 forms
Posted Date:-2022-05-09 13:26:31
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 13:45:10
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 13:34:46
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 13:50:14
Strain gauge has a ______
1.tangential
2. exponential
3.non-linear
4.linear
Posted Date:-2022-05-09 13:33:54
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 13:34:22
Strain gauge measurement involves _______
1.Wheatstone bridge
2.Kelvin bridge
3.De Sauty’s bridge
4.Anderson bridge
Posted Date:-2022-05-09 13:43:36
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 13:35:12
Strain gauges are classified into ________
1.3 types
2.5 types
3.7 types
4.9 types
Posted Date:-2022-05-09 13:25:29
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 13:44:39
Tensile stress decreases the length.
1.True
2. False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 13:28:44
Thermistor follows which law for small variations ________
1.Charle’s law
2.KVL
3.KCL
4.Ohm’s law
Posted Date:-2022-05-09 13:57:13
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 13:55:06
Thermistor is a contraction ______
1.thermal resistor
2. laser resistor
3. electric resistor
4.mechanical resistor
Posted Date:-2022-05-09 13:54:14
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 13:56:45
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 13:55:50
Thermistors have ______
1.positive temperature coefficient
2.negative temperature coefficient
3. zero temperature coefficient
4. infinite temperature coefficient
Posted Date:-2022-05-09 13:54:39