1.
What
is the main purpose of a heat exchanger in a cooling water system?
a.
To transfer heat from one
fluid to another
b. To
maintain a steady pressure in the system
c. To
reduce engine room temperature
d. To
reduce water turbulence
2.
What
is the normal indication that an oil filter is becoming blocked?
a.
The pressure drop across the
filter.
b. Low
pressure in the system.
c. Visual
inspection of the filter elements.
d. High
temperature of the oil.
3. What
is the normal maximum oil content permitted for machinery space bilge overboard
discharge via OWS equipment?
a.
15 ppm
b. 100
ppm
c. 50
ppm
d. Zero
ppm
4.
What
should be the first indication the engine room watchkeepers get that there is
oil or water leakage in the engine room?
a.
They should see it on the tank
top or in the bilge well during regular inspections.
b. Bilge
alarm should sound
c. A
low level alarm should sound for one of the oil or water tanks.
d. They
should hear the bilge pump start up automatically.
5. What
term is used to describe a fresh water cooling system which contains a seawater
cooled common freshwater cooler and which meets the cooling requirements for
all the engine room machinery?
a.
A central cooling system
b. A
low temperature freshwater system
c. A
common cooling system
d. A
high temperature freshwater system
6.
What
would be the most probable cause of an increase in cooling water temperature
for all cylinders of a diesel engine?
a.
Fouling of the jacket water
cooler.
b. Fouling
of the lubricating oil cooler.
c. Low
level in the header tank for the jacket system.
d. Fouling
of the charge air cooler.
7.
What
would be the most probable cause of high temperature readings for the bearings
in a diesel engine?
a.
Lubricating oil pressure too
low.
b. Charge
air pressure too low.
c. Water
in the fuel oil.
d. Jacket
cooling water temperature too high.
8. What
would you do if you are told to operate a piece of mechanical equipment which
you are not familiar with?
a.
Seek advice from your superior before attempting to operate it.
b. Ensure
that all safety guards and devices are disconnected.
c. Try
and guess how the equipment should be operated.
d. Ignore
the request to operate the equipment.
9.
Which
of the following pump types will normally require a separate means of priming?
a.
Centrifugal pump
b. Screw
pump
c. Gear
pump
d. Reciprocating
pump
10. Which
of the following statements regarding a centrifugal pump is correct?
a.
It is important that the rotation direction is correct to avoid dry
running.
b. A
centrifugal pump is always fitted in a vertical position.
c. A
centrifugal pump is always self priming.
d. Under
normal operation the fluid being pumped discharges from the centre of the
impeller.
11. Which
statement is true in relation to the operating parameters for a marine diesel
engine?
a.
The normal temperature of the lub oil after the cooler is
approximately 45 C.
b. The
jacket cooling water enters the engine at the cylinder cover at approximately
70 C and exits at the bottom of the cylinder liner.
c. The
minimum scavenge air temperature is 60 C to avoid condensate forming in the
charge air cooler
d. The
normal temperature of the lub oil after the cooler is approximately 65 C.
12. While
assisting the watchkeeper with routine cleaning of the fuel oil separator the
watch rating is requested to clean the plate stack. Which one is the preferred
method for this task?
a.
Soak the plates in a suitable solvent until all of the dirt has
loosened off and wipe clean with rags.
b. With
the plate stack in position fill the purifier bowl with clean diesel oil and
quickly switch it on and off to wash the plates.
c. Soak
the dirty plates in a solvent for an hour and then stand them on the engine
room deck to drain off.
d. Scrape
the plates as clean as possible with a packing knife and then wash them with a
high pressure water hose.
13. While
on watch, an engine room rating notices a leak from the gland of a running
seawater pump. What action should be taken?
a.
Inform the engineer officer of the watch so that the pump can be
changed over and the gland can be repacked.
b. Remove
the pump guard and tighten up the gland while the pump is still running to see
that the leak stops.
c. Change
over the pumps and tell his relief at the end of the watch.
d. Place
some jointing in way of the leak to direct the water into the bilge to stop it
being sprayed around by the rotating shaft.
14.
While
trying to deballast a double bottom tank problems are encountered getting
suction on the ballast pump, a centrifugal pump mounted above the tank top.
What action can be taken to solve the problem?
a.
Prime the pump with seawater
from the main inlet valve.
b. Disconect
the manometer pipe to get rid of an air pocket .
c. Close
the discharge valve.
d. Repeatedly
start and stop the pump until it gets suction.
15. Why
is it important that all the system valves are closed after completing bilge or
ballast pumping operations?
a.
To avoid accidental intake of water into the engine room in case of
valve or pipeline failure.
b. To
make sure the valves do not seize in the open position.
c. To
keep the pump housing full of fluid.
d. It
isn't important how the valves are left after pumping operations are completed.
1.
What
actions should the Officer of the Watch take when the ship's steering gear
fails?
a.
All of the suggested answers
b. Display
the NUC signal and consider stopping the engines
c. Request
the engine room to check the steering gear
d. Call
the Master and advise him of the situation
2.
What
can be used to reduce the effect of the state of sea-waves?
a.
Vegetable / Fish Oil
b. Foam
c. Fuel
Oil
d. Crude
Oil
3.
What
immediate actions should the Officer of the Watch take when the ship goes
aground on an uncharted shoal in the middle of the ocean?
a.
Stop engines and call the
Master
b. Stop
engines and immediately request "Full Astern"
c. Stop
engines and tell the engine room to switch over to high suctions
d. Sound
the General Alarm and plot the ships position
4.
What
special equipment can often provide assistance in locating a survival craft or
man overboard and in the water?
a.
A SART
b. A
RACON
c. AIS
d. A
sectored search pattern
5.
Which
method is used to make a physical connection between a rescue vessel and a
wreck?
a.
Rocket line
b. Heaving
line
c. Sputnik
line
d. Cosmos
line
