更多"How should cargo tank hatches be pr"的相关试题:
[单项选择]How should cargo tank hatches be protected when the ullage opening is open and the tank NOT gas free?（）.
A. With gooseneck vents
B. With warning signs
C. With flame screens
D. With pressure-vacuum relief valves
[单项选择]When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，the atmosphere must be sampled（）.
A. one meter from the tank bottom and one meter below the tank top
B. one half the ullage of the tank and one meter below the tank top
C. one half the ullage of the tank and one meter above the tank bottom
D. at three meter intervals from the tank top
[单项选择]While testing a cargo tank，your oxygen indicator reads 25% oxygen in the tank. You would then （）.
A. enter the tank safely
B. suspect the accuracy of the reading
C. ventilate the tank
D. test for nitrogen
[单项选择]You are loading a cargo tank on your container ship. The tank displays the red label shown. Which statement is TRUE? （）
A. The tank contains propylene
B. The tank's volume is 1077 cubic feet
C. There are three tanks in the shipment
D. The tank contains an oxidizing material
[单项选择]By regulation，cargo tank atmosphere must be inert before and during which operation?（）
A. Stripping
B. Loading
C. Cleaning
D. All of the above
[单项选择]（）shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions.
A. A load on top system
B. Direct line system
C. Circle line system
D. An inert gas system
[单项选择]The cargo，when（），should be completely covered with plastic.
A. stow
B. stowing
C. stowed
D. be stowed
[单项选择]Every（）shall be fitted with a cargo tank cleaning system using crude oil washing.
A. existing crude oil tanker of 20000 tons deadweight and under
B. new crude oil tanker of 20000 tons deadweight and under
C. existing crude oil tanker of 20000 tons deadweight and above
D. new crude oil tanker of 20000 tons deadweight and above
[单项选择]A cargo tank that is initially gas freed，can be inerted by introducing inert gas by a process known as（）.
A. dilution
B. displacement
C. precipitation
D. Either A or B
[单项选择]Movement of liquid in a tank when a vessel inclines causes an increase in（）.
A. righting arm
B. metacentric height
C. height of the uncorrected KG
D. natural rolling period
[单项选择]Accidental escape of oil out of a tank when it gets too full because pumping was not stopped in time defines（）.
A. overloading
B. over discharging
C. overflow
D. overtaking
[单项选择]To determine which grades of cargo a tank vessel is permitted to carry you should（）.
A. refer to the vessel's Certificate of Inspection
B. examine the cargo tanks and fittings
C. ask the terminal supervisor or his representative
D. check the loading order
[单项选择]ACCIDENTAL ESCAPE OF OIL OUT OF A TANK WHEN IT GETS TOO FULL BECAUSE PUMPING WAS NOT STOPPED IN TIME defines（）.
A. Overloading
B. Over discharging
C. Overflow
D. Overtaking
[单项选择]Anchor shackles should have a breaking strength that is（）.
A. equal to the chains they are connecting
B. 25% more than the chains they are connecting
C. 50% more than the chains they are connecting
D. 100% more than the chains they are connecting
[单项选择]When using slings，cargo handlers should take all the following precautions except（）.
A. Ensure that slings are securely fastened around the load
B. Avoid careless winch operations，especially when handling fragile cargo
C. Exercise care when using hooks，crowbars，and similar tools
D. Keep the loads as close to the rail or deck as possible
