Cargo Handling. Systems. Test 7 – Online Maritime Tests

Which cargo lines must have relief valves?

All pipelines with diameter more than 75 mm should be provided with relief valve
All pipelines or components which may be isolated in a liquid-full condition should be provided with relief valve
All pipelines that is more than 10 meter long should be provided with relief valve
All pipelines that is insulated should be provided with relief valve

What makes a one-way seat valve open and closed?

It is higher pressure on one side of the seat than on the other side, and it is shut manually or by change of pressure on the seat
One-way seat valve is opened and closed manually
It is the pressure above the seat that opens a seat valve, and it is closed manually or by higher pressure below the seat
It is the spring force that open the seat valve and it is closed by the liquid flow in the pipe

Which type of valves are most utilised on cargo lines on gas tankers?

All types of valves are used on cargo lines on gas carriers
Ball and butterfly valves are generally utilised on loading lines on gas carriers
SEUT valves are generally utilised on loading lines on gas carrier
Seat and needle valves are generally utilised on loading lines on gas carriers

What purpose has an discharge booster pump on a gas tanker?

The main purpose with booster pumps is to increase the temperature of cargo discharged
The main purpose with booster pumps is to increase the manifold pressure
The main purpose with booster pumps is to increase the discharge rate
The main purpose with booster pumps is to increase the cargo tank pressure

What is the criterion for heat exchangers that is used in cargo handling?

Heat exchangers that are utilised for cargo handling must be designed and tested to tolerate the products the carrier is registered to transport
Heat exchangers that are utilised for cargo handling must be designed and tested to tolerate
Heat exchangers that are utilised for cargo handling must be designed and tested according to the company
Heat exchangers that are utilised for cargo handling must be designed and tested to tolerate

Name the different system of reliquefaction plant we are using onboard gas carriers

There are three main reliquefaction systems, Direct cooling one to three stage, direct cascade cooling and indirect cooling
There are two main reliquefaction systems, Direct cooling one to three stage and direct cascade cooling
There is only one system of reliquefaction plant and that is direct cooling
There are two main reliquefaction systems, Direct cooling one stage and direct cascade cooling

What type of discharge pumps are normally in use on gas carriers

Name some heat exchangers that are used in cargo handling onboard a gas carrier

There isn
Cargo heater, vaporiser, super heater, oil coolers, intermediate pressure vessel in a direct cooling plant
Cargo heater, cargo condenser, freon condenser, vaporiser, super heater, oil coolers, intermediate cooler
Cargo condenser, freon condenser, cargo heater

Which types of compressors are utilised as cargo handling compressors on gas carriers?

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