更多"Which is a function of the voltage "的相关试题:
[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 function of the piston compression rings used in a diesel engine is to （）
A. seal the space between the piston and liner
B. transmit heat from the piston to the cylinder liner
C. reduce the amount of combustion gas blow-by
D. all of the above
[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]Which instrument is used to measure the relative humidity of air?（）
A. Hydrometer
B. Hygrometer
C. Spectrometer
D. Barometer
[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 predict the approach of a low pressure system（）.
A. Anemometer
B. Fathometer
C. Barometer
D. Thermometer
[多项选择]Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme.（）
A. statically map IPV4 address to IPV6 addresses
B. configuration IPv4 tunnels between IPV6 islands
C. use DHCPv6 to map IPV4 addresses to IPV6 addresses
D. use proxying and translation to translate IPV6 packets into IPV4 packets
E. configure IPV6 directly
F. enable dual-stack routing
[单项选择]Which lashing materials would be used in securing light vehicles aboard Ro-Ro vessels（）.
A. Chain lever or turnbuckle
B. Webbing
C. Chain
D. None of the above
[单项选择]Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use（）.
A. Chain
B. Wire rope
C. Webbing
D. All of the above
[单项选择]Which is normally used to hold wire rope for splicing（）.
A. Come along
B. Jigger
C. Rigger's screw
D. Sealing clamp
[单项选择]Which method is used to detect rot in manila lines?（）
A. Feeling the surface of the line for broken fibers
B. Measuring the reduction in circumference of the line
C. Observing for the appearance of mildew on the outer surface
D. Opening the strands and examining the inner fibers
[单项选择]What is a function of the wearing rings used in most centrifugal pumps?（）
A. Absorb erosion of high velocity discharge stream
B. Seal pump shaft against entry of air
C. Isolate the discharge side from the suction side
D. Dampen the turbulent discharge flow
[单项选择]Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
A. Carbon dioxide
B. Water (stored pressure)
C. Foam
D. Carbon tetrachloride
[多项选择]Which two values are used by Spanning Tree Protocol to elect a root bridge?（）
A. amount of RAM
B. bridge priority
C. IOS version
D. IP address
E. MAC address
F. speed of the links
[单项选择]Which tensioning device is used with chain to secure heavy vehicles aboard Ro-Ro vessels（）.
A. Chain lever
B. Buckle tensioner
C. Adjust-a-matic tensioner
D. Ratchet tensioner
