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1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2题:
Which of the following network devices uses NAT to convert private IP addresses into public IPaddresses?()
第3题:
Pressure-reducing valve
Unloading valve
Counterbalance valve
Pressure-relief valve
第4题:
Transducer
Reducer
Transformer
Rectifier
第5题:
Class A
Class B
Class C
Class D
第6题:
used to measure the speed of wind
in which the pressure of the air is measured
that tells which direction a storm is coming from
used to measure the height of waves
第7题:
Used of bimetallic piston rings
Ring gap pre-tensioning
Thermal increase in ring-end clearance
Gas pressure acting against the back of the ring
第8题:
pyrometer
bourdon gauge
pneumercator
manometer
第9题:
The follow-up gear
The rudder angle indicator
The synchronous electric transmitter
A rudder angle limit switch
第10题:
Steel brush
Fine emery cloth or steel wool
A section of the removed compression ring
A case hardened scraper
第11题:
seawater temperature
engine temperature
dry bulb and wet bulb temperatures
barometric pressure
第12题:
Moisture separator
Vacuum breaker
Lubricator
Non-return valve
第13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14题:
Which of the following devices can route electrical signals only when activated by an external control signal?()
第15题:
Compound gage
Bonrdon tube
Manometer
Deadweight gage
第16题:
Steel brush
Fine emery cloth or steel wool
A section of the removed compression ring
A case hardened scraper
第17题:
bimetallic type
diaphragm type
bourdon tube type
resistance-temperature type
第18题:
Differential
Trunk
Barrel
Valve-in-head
第19题:
Hydrometer
Hygrometer
Spectrometer
Barometer
第20题:
Impedance
Current
Resistance
Voltage
第21题:
Fan
Pump
Winch
Machine tool
第22题:
When heated, it will move proportional to the amount the metal has lengthened or expanded
The pointer associated with the pyrometer scale can be made to also measure engine RPM
It can be utilized in exhaust manifolds and heat exchangers interchangeably
It can indicate temperature at a distant point from the source heat
第23题:
a current will flow
a power will develop
a heat will flow
a pressure will produce