Transducer
Reducer
Transformer
Rectifier
第1题：
Which of the listed devices may be used as a digital device?
A.variable resistor
B.diode
C.strain gauge
D.thermistor
第2题：
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
第3题：
Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?
A.Pressure-reducing valve
B.Unloading valve
C.Counterbalance valve
D.Pressure-relief valve
第4题：
Which of the following devices is used to connect multiple devices to a network and does not stopbroadcast traffic?（）
第5题：
A sling psychrometer is used to measure ______.
A.seawater temperature
B.engine temperature
C.dry bulb and wet bulb temperatures
D.barometric pressure
第6题：
A.Switch
B.Hub
C.Modem
D.Repeater
第7题：
________ is a device used to measure atmospheric pressure．
A.Barometer
B.Thermometer
C.Chronometer
D.Speedometer
第8题：
Which of the units listed is used to combust waste in the engine room?
A.Boiler
B.Incinerator
C.Generator
第9题：
An aneroid barometer is an instrument ______.
A.used to measure the speed of wind
B.in which the pressure of air is measured
C.that tells which direction a storm is coming from
D.used to measure the height of waves
第10题：
Which of the following devices will allow a technician to measure the amount of data that is capable of traversing the network?（）