Assessment 4

Question 1

What colour are the Mast Obstruction Lights?

Answer 1

Red

Question 2

What is the configuration of Replenishment-At-Sea (RAS) lights?

Answer 2

Four solid red lights, separated by two solid white lights

Question 3

What does AEL stand for?

Answer 3

Automatic Emergency Light

Question 4

What does NLCP stand for?

Answer 4

Navigation Lights Control Panel

Question 5

What does NUC stand for?

Answer 5

Not Under Command

Question 6

When should navigation lights be tested?

Answer 6

One hour before sunset

Question 7

What element is found inside a fluorescent tube?

Answer 7

Mercury

Question 8

What is not a statutory navigation light?

Answer 8

Anchor Light

Question 9

Describe the connection to shore supply

Answer 9

1. Send signal to port
2. Raise permit to work
3. Rack out breakers
4. Prove box ‘dead’
5. Get castel key
6. Test shore supply cables
7. Connect cables
8. Inform dockyard

Question 10

What is EPMS?

Answer 10

Electric power management system

Question 11

Describe the cooling of type 23 propulsion motor

Answer 11

1.Cool air is drawn through a filter into the motor by 2 fans
2.Air is forced over poles, armature, commutator & brush gear
3.Cool air absorbs heat, then is exhausted into a heat exchanger