网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
Which of the listed devices is used to measure pressure and convert it to an electrical signal?
A.Transducer
B.Reducer
C.Transformer
D.Rectifier
参考答案
更多 “ Which of the listed devices is used to measure pressure and convert it to an electrical signal?A.TransducerB.ReducerC.TransformerD.Rectifier ” 相关考题
考题
Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?A.Pressure-reducing valveB.Unloading valveC.Counterbalance valveD.Pressure-relief valve
考题
Which of the listed devices may be used as a digital device?A.variable resistorB.diodeC.strain gaugeD.thermistor
考题
Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?()
A.NASB.FirewallC.HubD.Bridge
考题
________ is a device used to measure atmospheric pressure．A.BarometerB.ThermometerC.ChronometerD.Speedometer
考题
A sling psychrometer is used to measure ______.A.seawater temperatureB.engine temperatureC.dry bulb and wet bulb temperaturesD.barometric pressure
考题
An aneroid barometer is an instrument ______.A.used to measure the speed of windB.in which the pressure of air is measuredC.that tells which direction a storm is coming fromD.used to measure the height of waves
考题
Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?（）A、NASB、FirewallC、HubD、Bridge
考题
Which of the following devices can route electrical signals only when activated by an external control signal？（）A、SolenoidB、RelayC、ClutchD、Capacitor
考题
单选题Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?（）A
Pressure-reducing valveB
Unloading valveC
Counterbalance valveD
Pressure-relief valve
考题
单选题In order to accurately measure very low pressures, which of the instruments listed should be used?（）A
Compound gageB
Bonrdon tubeC
ManometerD
Deadweight gage
考题
单选题Which of the listed devices is used to measure pressure and convert it to an electrical signal?（）A
TransducerB
ReducerC
TransformerD
Rectifier
考题
单选题Which of the listed devices could be used as a substitute for a ring grooving tool?（）A
Steel brushB
Fine emery cloth or steel woolC
A section of the removed compression ringD
A case hardened scraper
考题
单选题Which of the listed classes of fire is considered as one involving electrical equipment?（）A
Class AB
Class BC
Class CD
Class D
考题
单选题The type of gauge most commonly used to measure pressure is the （）.A
bimetallic typeB
diaphragm typeC
bourdon tube typeD
resistance-temperature type
考题
单选题An aneroid barometer is an instrument（）.A
used to measure the speed of windB
in which the pressure of the air is measuredC
that tells which direction a storm is coming fromD
used to measure the height of waves
考题
单选题In order to distribute the side pressures over a wide area of the cylinder walls and liners, which of the listed types of pistons are used in modem low pressure air compressors?（）A
DifferentialB
TrunkC
BarrelD
Valve-in-head
考题
单选题In an internal combustion engine, which of the devices listed will force the compression rings to seal the compression gases in the space above the piston?（）A
Used of bimetallic piston ringsB
Ring gap pre-tensioningC
Thermal increase in ring-end clearanceD
Gas pressure acting against the back of the ring
考题
单选题Which instrument is used to measure the relative humidity of air?（）A
HydrometerB
HygrometerC
SpectrometerD
Barometer
考题
单选题The most common instrument used to measure diesel engine exhaust pressure is the （）A
pyrometerB
bourdon gaugeC
pneumercatorD
manometer
考题
单选题Which of the electrical properties listed will always be the same for each component in a parallel circuit?（）A
ImpedanceB
CurrentC
ResistanceD
Voltage
考题
单选题Which of the devices listed, when used on an electro-hydraulic steering gear, keeps the movement of the redder closely in step with the steering wheel?（）A
The follow-up gearB
The rudder angle indicatorC
The synchronous electric transmitterD
A rudder angle limit switch
考题
单选题Which of the motors for the devices listed below is fitted with an instantaneous overload relay?（）A
FanB
PumpC
WinchD
Machine tool
考题
单选题Which of the listed devices could be used as a ring groove tool during preparation for the installation of new rings?（）A
Steel brushB
Fine emery cloth or steel woolC
A section of the removed compression ringD
A case hardened scraper
考题
单选题Which of the general advantages listed does the electrical pyrometer have over the mechanical pyrometer?（）A
When heated, it will move proportional to the amount the metal has lengthened or expandedB
The pointer associated with the pyrometer scale can be made to also measure engine RPMC
It can be utilized in exhaust manifolds and heat exchangers interchangeablyD
It can indicate temperature at a distant point from the source heat
考题
单选题A sling psychrometer is used to measure（）.A
seawater temperatureB
engine temperatureC
dry bulb and wet bulb temperaturesD
barometric pressure
考题
单选题When two different metals are joined to form a closed circuit and exposed to different temperatures at their junctions （） which can be used to measure temperature.A
a current will flowB
a power will developC
a heat will flowD
a pressure will produce
考题
单选题Which of the listed devices would be installed at a control system air pressure reducing station?（）A
Moisture separatorB
Vacuum breakerC
LubricatorD
Non-return valve
热门标签
最新试卷