更多"What type of liquid is used in the "的相关试题:
[单项选择]When loading bulk liquid cargo，what is the FIRST action you should take if a cargo valve jammed open?（）
A. Trip the pump relief valve
B. Order the dock man to shut down
C. Call the owner，operator，or terminal supervisor
D. Run out the vessel's or terminal's fire hose
[单项选择]When loading bulk liquid cargo，what is the first action you should take if a cargo valve jammed open?（）
A. Call the owner，operator，or terminal supervisor
B. Unplug the deck scuppers
C. Order the dock man to shut down
D. Run out the vessel's or terminal's fire hose
[单项选择]What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
A. Bends in the piping
B. Slowing the pumping rate
C. Pipeline valves
D. Backing rings for pipe welds
[单项选择]What is the principal danger from the liquid in a half full tank onboard a vessel?（）
A. Corrosion from the shifting liquid
B. Rupturing of bulkheads from the shifting liquid
C. Loss of stability from free surface effect
D. Holing of the tank bottom from the weight of the shifting liquid
[单项选择]Early models of the flash-type evaporators used a separate shell-and-tube heat exchanger as the air ejector condenser.More recent models use a combined air ejector condenser with the（）
A. distilling condenser
B. salt water feed heater
C. distillate cooler
D. flash chamber
[单项选择]What authentication type is used by SNMPv2?（）
A. HMAC-MD5
B. HMAC-SHA
C. CBC-DES
D. community strings
[单项选择]What is the bow type anchor shackle primarily used for（）.
A. Chain to chain connections
B. Chain to anchor connections
C. Kenter link to anchor connections
D. Wire rope connections
[单项选择]If the detergent type lubricating oil being used in a diesel engine is black, the oil （）
A. must be centrifuged
B. must by filtered
C. must be changed
D. is holding finely dispersed carbon in suspension
[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]What type of electric motor is most commonly used on board ship?（）
A. non-synchronous electric motor
B. synchronous electric motor
C. fully enclosed electric motor
D. watertight electric motor
[单项选择]Which type of link is generally used to connect shots of anchor chain（）.
A. Detachable
B. Open
C. Pear shaped
D. Stud link
[单项选择]The type of gauge most commonly used to measure pressure is the （）.
A. bimetallic type
B. diaphragm type
C. bourdon tube type
D. resistance-temperature type
[单项选择]Gear-type flexible couplings are often used in diesel engine drive trains because they（）
A. require no lubrication under normal operating conditions
B. compensate for gross misalignment in the drive train
C. are able to transmit high torque ,even where slight misalignment exists
D. will rapidly disconnect the engine from the line shaft
[单项选择]Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?（）
A. crossover
B. straight-through
C. rolled
D. shielded twisted-pair
[单项选择]Which type of cable should be used to make a connection between the Fa0/0 port on a router and the Fa0/0 port switch?（）
A. Rollover cable
B. Console cab le
C. Crossover cable
D. Straight-through cable
E. Serial cable
[单项选择]Individual wires，used in systems greater than 50 volts,（）.
A. should be supported at 24 inch intervals with plastic tie wraps
B. should never be located in a tank
C. must be installed in conduit
D. All of the above
[单项选择]What type of valve is used to direct the flow of hydraulic fluid?（）
A. Relief valve
B. Direction control valve
C. Stop valve
D. Pressure control valve
