3-28.
Under which of the following
conditions will a properly
operating engine governor fail to
have any control over a sudden
increase in speed?
1.
Injector leakage during
operation
2.
Sudden drawing of lube oil into
the cylinders from the air box
3.
Manifold explosion due to
excessive accumulation of oil
4.
Inoperative cylinder relief
valve due to a stuck spring
3-29.
Before installing a new blower oil
seal, what must you do to the oil
seal first?
1.
Wash it in a detergent
2.
Spray it with paraffin
3.
Blow some air through it
4.
Soak it in clean, light lube
oil
3-30.
What must you do to an improperly
operating safety valve when it is
removed from an engine cylinder?
1.
Reset the spring tension
2.
Replace the shear pin
3.
Machine and lap the valve
4.
Replace it with a new one
3-31.
If the exhaust ports of an engine
become clogged during operation,
which of the following conditions
is a possible result?
1.
High exhaust temperatures
2.
Overheating of the engine
3.
Popping of the cylinder safety
valves
4.
Each of the above
3-32.
When cleaning the cylinder ports of
an engine, you can prevent carbon
from entering the cylinder by
performing which of the following
actions?
1.
Using a vacuum cleaner while
brushing off the carbon
2.
Jacking the engine over to a
position that the piston blocks
the port
3.
Covering the inside of the
cylinder
4.
Brushing off the carbon away
from the cylinder direction
3-33.
What kind of noise will most likely
be coming from an engine operating
with a broken engine part?
1.
Rattling
2.
Clicking
3.
Pounding
4.
Knocking
3-34.
The color of the exhaust smoke of
an engine can NOT be used as an aid
in which of the following
circumstances?
1.
Troubleshooting
2.
Testing for fuel contamination
3.
Determining engine performance
4.
Determining serious engine
troubles
3-35.
An explosion may occur if a
cigarette is lit near a storage
battery because of the presence of
1.
hydrogen gas
2.
carbon monoxide
3.
sulphuric acid
4.
gasoline fumes
3-36.
Failure of a gasoline engine
starting motor to run may be caused
by corroded, loose, or burned
battery terminals.
1.
True
2.
False
20
