Capacitance can be varied in ____
1.10 ways
2.6 ways
3.2 ways
4.4 ways
Posted Date:-2022-05-09 07:12:59
Capacitive pressure transducer uses distance of separation for sensing the capacitance.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:13:27
Commonly used photoemissive material is _______
1. gold
2.opium
3. tellurium
4.cesium-antimony
Posted Date:-2022-05-11 23:50:34
Diaphragms in a pressure sensor are of _____
1.2 types
2. 5 types
3.10 types
4. 20 types
Posted Date:-2022-05-09 07:02:18
If two different metals are joined forming a closed circuit an electric current flows.
1. True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:23:40
In general how many pressure sensitive devices are there?
1.6
2.20
3. 10
4.4
Posted Date:-2022-05-09 07:01:42
In kitchen applications a piezoelectric crystal is used for _____
1. skimming milk
2. lighting a gas stove
3. grinding
4. mixing
Posted Date:-2022-05-11 23:46:57
Output of electrical transducer is ____
1. inversely proportional to displacement
2.proportional to square of displacement
3.proportional to displacement
4.constant
Posted Date:-2022-05-09 07:01:08
Photoelectric transducers consist of _______
1. 1 transducer
2.3 transducers
3.5 transducers
4.10 transducers
Posted Date:-2022-05-11 23:49:42
Reluctance of a coil is given by which of the following relation?
1. S = 1⁄A
2.S = 1⁄μ
3. S = a⁄μA
4. S = 1⁄μA
Posted Date:-2022-05-09 07:07:44
Self-inductance depends on ______
1.permeability
2.permittivity
3.plank’s constant
4.rydberg constant
Posted Date:-2022-05-09 07:08:13
What is the relation between capacitance and input impedance?
1. directly proportional
2.constant
3.proportional to square
4.inversely proportional
Posted Date:-2022-05-09 07:16:24
A capacitive transducer works on the principle of ______
1.inductance
2.capacitance
3. resistance
4.reluctance
Posted Date:-2022-05-09 07:12:31
A piezoelectric transducer has a _____
1.very high sensitivity
2.low sensitivity
3. high sensitivity
4.zero sensitivity
Posted Date:-2022-05-11 23:47:24
A piezoelectric transducer is used as an ignition source for a cigarette.
1. True
2. False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-11 23:47:42
A quartz crystal is _______
1.a chemical transducer
2.a photoelectric transducer
3.not a self-generating transducer
4. a self-generating transducer
Posted Date:-2022-05-11 23:48:26
An inductive transducer measures the variation in _____
1.reluctance
2.resistance
3.capacitance
4.self-inductance
Posted Date:-2022-05-09 07:10:55
Based on self-inductance of a coil, how many types of inductive transducers are available?
1.5
2.10
3.4
4.20
Posted Date:-2022-05-09 07:09:07
Bellows have 5 to 20 convolutions.
1. True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:04:42
Bourdon tubes are ____
1.very highly sensitive to shock
2.not sensitive to shock
3.less sensitive to shock
4.more sensitive to shock
Posted Date:-2022-05-09 07:03:42
Capacitive transducer displays ____
1. linear behaviour
2. non-linear behaviour
3.exponential behaviour
4.tangential behaviour
Posted Date:-2022-05-09 07:14:00
Capsule type of pressure sensor consists of ______
1.6 dissimilar diaphragms
2.4 identical diaphragms
3. 2 identical diaphragms
4.8 dissimilar diaphragms
Posted Date:-2022-05-09 07:03:03
Chromel-constantan thermopile consists of 25 thermocouples.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:22:34
Commonly used thermoelectric transducer is _____
1. thermometer
2.thermocouple
3. linear variable differential transducer
4.loud speaker
Posted Date:-2022-05-09 07:19:52
Composite capacitance consists of _________
1. one dielectric medium
2.more than one dielectric medium
3.five dielectric media
4. ten dielectric media
Posted Date:-2022-05-09 07:16:59
For accurate temperature measurement in a thermocouple the _____
1.cold compensation is needed
2.hot compensation is needed
3. no compensation is needed
4. hot and cold compensations are needed
Posted Date:-2022-05-09 07:24:47
Frequency response of capacitive transducers is ____
1.high
2.medium
3.low
4.zero
Posted Date:-2022-05-09 07:14:25
In an eddy current transducer output depends on the variation in the eddy current.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:10:04
Inductive transducer is used for the measurement of physical quantities.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:11:18
Microphone converts light into heat.
1. True
2. False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-11 23:48:01
Most suitable material for a thermocouple is ______
1.brass
2.gold
3.platinum
4.silver
Posted Date:-2022-05-09 07:23:21
Mutual inductance depends on ______
1.self-inductance
2.self-inductance and coefficient of coupling
3.coefficient of coupling
4.permittivity of air
Posted Date:-2022-05-09 07:06:20
Optical radiations involve ______
1.optoelectric devices
2.biological devices
3.mechanical devices
4. chemical devices
Posted Date:-2022-05-11 23:49:15
Photoconductive transducers produce output ______
1.due to change in inductance
2.due to change in light
3. due to change in resistance
4.due to change in temperature
Posted Date:-2022-05-11 23:50:08
Piezoelectric crystals _______
1. float on water
2.dissolve in water
3.are not soluble in water
4. absorb water
Posted Date:-2022-05-09 07:26:13
Piezoelectric crystals produce ________
1.no voltage
2.low voltage
3. high voltage
4.very high voltage
Posted Date:-2022-05-09 07:26:45
Piezoelectric transducer is used for measuring ________
1.non-electrical quantities
2.electrical quantities
3.chemical quantities
4.any quantity
Posted Date:-2022-05-09 07:25:47
Pressure is the _____
1. force per unit area
2.mass per unit area
3.force per unit volume
4. mass per unit volume
Posted Date:-2022-05-09 07:00:17
Pressure measurement devices make use of _____
1. non-elastic member
2.elastic member
3. bendable member
4.non-bendable member
Posted Date:-2022-05-09 07:00:40
Self-inductance of an inductor is given by _____
1.L = N⁄S
2. L = 1⁄S
3. L = N2⁄S
4. L = N2
Posted Date:-2022-05-09 07:07:01
Sensitivity in a capsule is increased ______
1.through parallel connection of capsules
2.through series connection of capsules
3.through series and parallel connection of capsules
4.by not connecting them at all
Posted Date:-2022-05-09 07:05:32
Temperature is the only consideration while selecting a diaphragm.
1.True
2.False
3.all of the above
4.None of the mentioned
Posted Date:-2022-05-09 07:02:39
The algebraic sum of e.m.f.s in a circuit containing thermocouples is ______
1. infinite
2.hundred
3. zero
4.ten
Posted Date:-2022-05-09 07:20:14
Thermocouple must provide _____
1.small thermo e.m.f
2.sufficient thermo e.m.f
3.no thermo e.m.f
4.infinite thermo e.m.f
Posted Date:-2022-05-09 07:22:58
Thermoelectric transducer is a _____
1.temperature transducer
2.pressure transducer
3.inductive transducer
4.capacitive transducer
Posted Date:-2022-05-09 07:19:26
What is a thermopile?
1. single thermocouple
2.series-parallel connection of thermocouples
3.parallel connection of thermocouples
4.series of thermocouples
Posted Date:-2022-05-09 07:21:58
What is the relation between capacitance and output impedance?
1.proportional to square
2.constant
3.directly proportional
4.inversely proportional
Posted Date:-2022-05-09 07:15:55
What is the relation between the self-inductance and the reluctance of a coil?
1.directly proportional
2.inversely proportional
3. no relation
4.constant
Posted Date:-2022-05-09 07:08:43
When a compressive force is applied to a quartz crystal then ________
1.positive charges are induced
2.negative charges are induced
3. no charge is induced
4.both positive and negative charges are induced
Posted Date:-2022-05-11 23:46:26
Which of the following should satisfy for measuring higher temperatures using a thermocouple?
1. no wire is required
2.wire must be small
3.wire must be thin
4. wire must be heavy
Posted Date:-2022-05-09 07:24:10