By regulation,cargo tanks must be inert before and during what operation?A.StrippingB.Load

Which method is used to supply inert gas from a flue gas system to the cargo tanks?

A.Exhaust gas pressure from the stack

B.High capacity fan

C.Inert gas compressor

D.Natural aspiration

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

An inert gas system installed on a tanker is designed to ______.

A.aid in the stripping and cleaning of cargo tanks

B.increase the rate of discharge of cargo

C.force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere

D.lower the oxygen levels inside cargo tanks，making explosion nearly impossible

The blowers of an inert gas generation system aboard a tanker，will be automatically secured if ______．

A.Normal water supply at the water seal is lost

B.The temperature of the inert gas being delivered to the cargo tanks is more than 150℉

C.The cooling water supply to the scrubbers is lost

D.All of the above

Which operation may cause the pressure in an inert tank to fall below the prescribed limits ________．

A.Loading

B.Discharging

C.Crude oil washing

D.Steaming tanks

Which statement(s) is/are TRUE concerning crane cargo operations?

A.Do not exceed rated load capacity of crane and container spreader or slings

B.During any cargo handling operation，the safety of personnel is paramount

C.Cargo handlers must be outfitted with adequate protection from personal injury

D.All the above

By regulation，cargo tank atmosphere must be inert before and during which operation ________．

A.Stripping

B.Loading

C.Cleaning

D.All of the above

How does an inert gas system on a tanker function to prevent explosions in cargo tanks?

A.De-energizes the "charged mist" effect

B.Maintains a positive pressure on the vent header to cool the flammable vapors

C.Inert gas filters out the flammable vapors from the cargo tank spaces

D.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit

Inerting means ______．

A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume

B.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume

C.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo

D.All of the above

What is the purpose of pressure-vacuum relief valves ________．

A.Regulation of discharge pressure from cargo pumps

B.Maintaining constant velocity in cargo lines

C.Regulation of suction head on cargo pumps

D.To maintain a tank or void at atmospheric pressure