更多"Which of the following items is nec"的相关试题:
[单项选择]Point out which one of the following items is not in the charge of Chief Officer in repairing operation（）.
A. hull cleaning
B. derusting and painting
C. the maintenance of boiler
D. docking and undocking
[单项选择]Which of the following items don’t belong to dock repair works?（）
A. making the repair list, booking spare parts and special tools for the dock repair
B. shutting off all of the S.W valves to outboard
C. the sketches or diagrams used for the dock repair
D. cleaning up the oil tank and boiler before enter the dock
[单项选择]Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?（）
A. Accidental discharge of oil
B. Disposal of oil residues
C. Quantity of water produced by FWG
D. Discharge of dirty ballast or cleaning water from fuel oil tanks
[单项选择]As to the bearing, of the following, which statement is not true?（）
A. ff overheat is found, the engine must be stopped for inspection
B. Much heat of the crankcase door indicates that the bearing is overheated
C. If bearing clearance is too large, knocking will be heard in the crankcase
D. If bearing clearance is too large or too small, the white metal may be melted
[单项选择]As to the piston cooling, of the following, which statement is not true?（）
A. Because the piston is exposed to very high temperature, it must be cooled
B. The lower the piston cooling temperature is, the better it is
C. Both water and lube oil can be used as coolant
D. One of the piston cooling methods is vibration cooling, with better effect
[单项选择]Which of the following is not a factor which can interfere with the pulse of sound and cause a variation the depth reading?（）
A. salinity
B. temperature
C. the hydrostatic pressure
D. Vessel’s speed
[单项选择]Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled?（）
A. Set the SSID value in the client software to public.
B. Configure open authentication on the AP and the client.
C. Set the SSID value on the client to the SSID configured on the AP.
D. Configured MAC address filtering to permit the client to connect to the AP.
[单项选择]（）of the following items is not in the charge of Chief Officer in repairing operation.
A. hull cleaning
B. derusting and painting
C. the maintenance of boiler
D. docking and undocking
[单项选择]Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?（）
A. transport type all
B. transport output all
C. transport preferred all
D. transport input all
[单项选择]Which condition is necessary for a substance to burn?（）
A. The temperature of the substance must be equal to or above its fire point
B. The air must contain oxygen in sufficient quantity
C. The mixture of vapors with air must be within the explosive range
D. All of the above
[多项选择]Which of the following characteristics describe the BPDU Guard feature（）
A. ABPDU Guard port should only be configured on ports with PortFast enabled.
B. BPDU Guard and PortFast should not be enabled on the same port.
C. BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.
D. ABPDU Guard port receiving a BPDU will go into err-disablestate.
E. ABPDU Guard port receiving a BPDU will be disabled.
F. BPDU Guard can be enabled on any switch port.
[单项选择]Which of the following commands would successfully implement an access list on a routers virtual terminal line?（）
A. RouterTK(config-line)# access-class 10 in
B. RouterTK(config-if)# ip access-class 23 out
C. RouterTK(config-line)# access-list 150 in
D. RouterTK(config-if)# ip access-list 128 out
E. RouterTK(config-line)# access-group 15 out
F. RouterTK(config-if)# ip access-group 110 in
[单项选择]Which of the items listed causes a direct acting mechanical governor to operate the engine fuel control linkage?（）
A. Hydraulic oil pressure
B. Servomotor action
C. Flyweight centrifugal force
D. Relay motion
[单项选择]Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
A. If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available
B. Channel 16 (156.8) may be used for distress messages
C. It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
D. Distress messages should first be transmitted on 2182 kHz
