更多"Which of the listed devices could b"的相关试题:
[单项选择]Which of the listed devices could be used as a substitute for a ring grooving tool?（）
A. Steel brush
B. Fine emery cloth or steel wool
C. A section of the removed compression ring
D. A case hardened scraper
[单项选择]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 gear
B. The rudder angle indicator
C. The synchronous electric transmitter
D. A rudder angle limit switch
[单项选择]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
[单项选择]Which of the devices listed is common to all types of pumps?（）
A. A power end and fluid end
B. A propeller and educator
C. A volute and impeller
D. A turbine and piston
[单项选择]Which of the devices listed is installed on a diesel engine to isolate some of the crankshaft vibrations caused by rotational and reciprocating forces?（）
A. Planetary gear set
B. Torsional vibration damper
C. Friction clutch
D. Air bladder clutch
[单项选择]Which of the motors for the devices listed below is fitted with an instantaneous overload relay?（）
A. Fan
B. Pump
C. Winch
D. Machine tool
[单项选择]Which of the listed devices would be installed at a control system air pressure reducing station?（）
A. Moisture separator
B. Vacuum breaker
C. Lubricator
D. Non-return valve
[单项选择]A low pressure annular preventer which is used to direct flow of kick fluids away from the rig floor is called a （）.
A. dump valve
B. deflector
C. separator
D. diverter
[单项选择]Freon 12 which is used to produce intense cold is normally a （） when at atmospheric pressure and temperature.
A. liquid
B. gas
C. solid
D. water only
[单项选择]The rolling hitch could be used to（）.
A. join two lines of different sizes
B. join two lines of equal sizes
C. add strength to a weak spot in a line
D. act as a stopper to transfer a line under strain
[单项选择]In which situation could a vessel most easily capsize?（）
A. Running into head seas
B. Running in the trough
C. Running with following seas
D. Anchored with your bow into the seas
[单项选择]Which command is used to load a configuration from a TFTP server and merge the configuration into RAM?（）
A. copy running-config: TFTP
B. copy TFTP: running-config
C. copy TFTP: startup-config
D. copy startup-config: TFTP
[单项选择]Which command is used to copy the configuration from RAM into NVRAM?（）
A. copy running-config startup-config
B. copy startup-config: running-config
C. copy running config startup config
D. copy startup config running config
E. write terminal
[单项选择]Which command is used to display the collection of OSPF link states?（）
A. show ip ospf lsa database
B. show ip ospf link-state
C. show ip ospf neighbors
D. show ip ospf database
[单项选择]The type of extinguisher which should be used for an electricity fire is（）.
A. foam or soda acid
B. dry chemical or foam
C. carbon dioxide or dry chemical
D. carbon dioxide or foam
[单项选择]Which instrument is used to measure the relative humidity of air?（）
A. Hydrometer
B. Hygrometer
C. Spectrometer
D. Barometer
