Cargo Handling. Systems. Test 5 – Online Maritime Tests

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Which type of piston compressor is most common as a cargo compressor?

Cargo containers on deck are secured _____

On what cargoes is indirect cargo cooling plant used, and why?

Indirect cargo cooling plant is utilised on all liquefied cargoes in north European waters during winter time
Indirect cargo cooling plant is utilised on cargoes that can not be compressed or be expelled for high temperature
Indirect cargo cooling plant is utilised on LPG in north European waters during winter time
Indirect cargo cooling plant is utilised on cargoes that can not be compressed

In the cascade type system shown, what level would you expect to experience in the freon receiver with the plant running?

At what temperature would you expect to carry a fully refrigerated cargo of butane?

What refrigerant temperature would you expect at the freon compressor discharge of a cascade system?

What is the main difference of deepwell and submerged pumps?

The main difference is that deepwell pumps are connected to the motor with a long shaft and submerged pumps have both pump and motor submerged down in the tank
The main difference is that deepwell pumps are more easy to maintain than the submerged pumps
The main difference is that deepwell pumps are more expensive than submerged pumps
The main difference is that deepwell pumps are driven by hydraulic motor and submerged pumps are driven by electric motor

Prior to preparing and cleaning holds in preparation for bulk cargo it is important to _____

At what temperature would you expect to carry a fully refrigerated cargo of ammonia?

What is the biggest difference on screw compressors that is utilised in a cargo cooling plant?