更多"By regulation,cargo tanks must be i"的相关试题:
[单项选择]By regulation, cargo tanks must be inert before and during what operation?().
A. Stripping
B. Loading
C. Cleaning
D. Crude oil washing
[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]Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with().
A. gooseneck vents and flame screens
B. pressure-vacuum relief valves
C. branch vent lines and a vent header
D. forced draft blowers
[单项选择]Crude oil washing of cargo tanks has the following advantages except for ()
A. reducing the erosion of the cargo tanks
B. increasing the total quantity of oil to carry
C. reducing the quantity of water contained in oil
D. reducing cargo discharged time
[单项选择]Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because().
A. a subsequent temperature rise will cause the cargo to overflow
B. air pockets may cause the cargo to bubble out of the ullage hole
C. the increased viscosity of the product requires higher loading pressure which increases the chances of a spill
D. the tank valve may be stiff and a spill will occur before the valve can be closed
[单项选择]To prevent the overflow of cargo tanks due to expansion, you should top off ().
A. to the bottom of the expansion trunk
B. to within 1% to 3% of its capacity
C. to within 1% to 3% inches of its capacity
D. 1 to 3 inches from top of the vent pipe
[单项选择]Sufficient cargo tanks shall be()prior to each ballast voyage in order that,taking into account the tanker’s trading pattern and expected weather conditions,ballast water is put only into cargo tanks which have been crude oil washed.
A. Inerted
B. Crude oil washed
C. Gas freed
D. Battened down
[单项选择]Ballast water can only be()in cargo tanks in exceptional cases where the particular character of the operation of an oil tanker renders it necessary to carry ballast water in excess of the quantity required,provided that such operation of the oil tanker falls under the category of exceptional cases as established by the Organization.
A. carried
B. contained
C. filled
D. stuffed
[单项选择]Hoses used for cargo transfer operations must be tested abdinspected at specified intervals by ().
A. a representative of the Captain of the Port
B. the operator of the vessel or facility
C. a representative of the National Cargo Bureau
D. a representative of the American Bureau of Shipping
[单项选择]You are discharging cargo and the inert gas system is in operation to inert the tanks. The pressure in a tank being discharged starts to drop below the allowable limit. What action should you take? ()
A. Cut in another IG fan to increase gas flow
B. Open the pressure control valve until the pressure increases
C. Open the tank isolation valve to the fully open position
D. Reduce the pumping rate
[单项选择]The fuel from the bunker tanks must be treated by before entering the service tanks(), from where the fuel enters()
A. centrifugal separators; the engine cylinder
B. oily water separators; the engine cylinder
C. oily water separators; the fuel supply system
D. centrifuges; the fuel supply system
[单项选择]Cargo booms must be weight tested to recertify the Safe Working Load (SWL) every().
A. year
B. two years
C. four years
D. five years
[单项选择]Fuel oil tanks must be fitted with () that can be closed rapidly and remotely in the event of an emergency such as a fire.
A. stop valves
B. non-return valves
C. quick closing valves
D. relief valves
[单项选择]All wire rope used in shipboard cargo gear must be identified and described in a certificate. The certificate shall certify all of the following EXCEPT the().
A. date of the test
B. load at which a test sample broke
C. name of the vessel
D. number of strands and of wires in each strand
[单项选择]By regulation,your cargo vessel must have().
A. sufficient facilities for the crew to wash their clothes
B. a wash basin in each room
C. separate toilet facilities for engineers where their number exceeds six
D. All of the above
[单项选择]Each inert gas system must be designed to supply the cargo tanks with a gas,or mixture of gasses,that has an oxygen content by volume of().
A. 5% or less
B. 10% or less
C. 15% or less
D. 20% or less
[单项选择]Which space(s) on your cargo vessel must have a fire detection system?()
A. Any compartment containing explosives
B. Any compartment adjacent to one containing explosives
C. Enclosed spaces which are specially suitable for vehicles
D. All of the above