Assume the air brake to the propeller
shaft is inoperative and the engine must
be used for maneuvering. Which of the
following is NOT a step in the procedure
for continuing engine operation?
1. Increase the reducing valve
Use the throttle to control
3. Notify the OOD and the engineer
Secure the air brake system
operation of the clutch dump valve
permits continued operation of the
engine after failure of which of the
following parts? 1.
2. Propeller shaft pneumatic
Coupling lube oil regulating valve
control valve 11-41.
Assume you have removed the inspection
plate to a faulty heat exchanger to
observe for leakage.
After plugging the
expansion tank vent, you should check
for leaks by pressurizing which of the
following parts of the ship's cooler?
saltwater side from the ship's air
supply system 2.
The freshwater side from the ship's
air supply system
3. The saltwater side from the
ship's freshwater system
freshwater side from the ship's
freshwater system 11-42.
During an emergency, which of the
following steps should you take to allow
an engine to continue operating with a
leaking heat exchanger?
Request permission to speed up the
affected engine and manually
increase the freshwater cooling
Request permission to slow down the
affected engine and manually reduce
the saltwater cooling pressure
3. Keep a
constant watch for any abnormal
temperatures or pressures and inform
the engineer officer of the operating
Roth 2 and 3 above
In answering questions 11-43 through 11-45,
select the action in column B that should be
taken to correct the casualty in column A.
B. Actions 11-43.
1. Renew the
Oil fails to operate
11-44. Diesel engine main
bearings over- manually
heat due to grit
or dirt 3.
cal and is overheating
control switches to
the twin hydraulic
What is the best emergency treatment
if an overheated mainshaft bearing
is found to be fitted improperly?
Renew the oil
Replace the oil rings
an abundant supply of oil 4.
Operate at low speeds until repairs
can be made
11-47. Which of the following
casualties should be investigated by
means of a check on the oil
discharge pressure? 1.
Abnormal main shaft vibration
Abnormal noise in the reduction gear
Oil throwing by a coupling
Inoperative propeller shaft
11-48. What is the first
corrective action you should take if
one of a ship's two propulsion shafts
begins to vibrate excessively?
Slow both shafts
Slow the affected shaft
Investigate the fairwaters
Stop and secure the affected shaft