Q1. (a) Describe the actions to be taken by the Engineer Officer of the Watch on discovering a scavenge fire (12)
(b) State TWO dangers of allowing a scavenge fire to exist (4)
Q2. Describe, with the aid of a sketch, the operational principles of a main engine exhaust gas turbo-charger. (16)
Q3. With reference to a main engine jacket water cooling system:
(a) Explain, with the aid of sketches, how the jacket water temperature is maintained at its optimum value. (8)
(b) State the possible effects on the engine if the jacket water temperatures are maintained outside the desired value. (8)
Q4. With reference to the reversing of an engine:
(a) Describe THREE methods by which it may be achieved (12)
(b) Explain what is meant by lost motion (4)
Q5. With reference to auxiliary boilers:
(a) State the effect on operation in the event of EACH of the following conditions:
(i) High water level; (2)
(ii) Low water level; (2)
(iii) Extra-low or low-low water level. (2)
(b) Describe the procedure for verifying the water level in a low-pressure boiler gauge glass. (10)
Username or email address *Required
Password *Required
Note: Entering wrong username in the login form will ban your IP address immediately. Entering wrong password multiple times will also ban your IP address temporarily.
Log in
Lost your password? Remember me
No account yet?
