Propulsion

Question 1

4 hazards for entering the gearbox room?

Answer 1

Safety Guard
Overalls done up
Man below tally
MEOs Permission

Question 2

What is the use of a Plummer block

Answer 2

Used to support the weight of the shaft with the ship

Question 3

Shaft order

Answer 3

Power turbine
Gear box
Thrust block 
Shaft break
Turning gear
Plummer blocks
Bulk head glands 
Stern seal
Intermediate a brackets 
SKF coupling
Main A bracket 
Propeller

Question 4

What is the principal called which creates a wedge is formed between the shaft and the bearing of the propeller?

Answer 4

Michelle Principal

Question 5

What is a bulkhead

Answer 5

To maintain watertight integrity as it’s about to pass through compartments

Question 6

What is used as lubrication in bulkhead glands

Answer 6

White metal lined baring finish seal against the shaft in conjunction with grease

Question 7

What is the purpose of the stern seal

Answer 7

To maintain a water tight seal as the shaft passed through the hull

Question 8

What’s the purpose of an A bracket

Answer 8

Supports the shaft outside of the ship these require no thrust

Question 9

What is the SKF coupling used for

Answer 9

So the tail shaft can be split from the intermediate shaft without leaving flange