6-30.
What condition is indicated when
the three neon lamps located on the
face of the phase-sequence
indicators are lit?
1.
Three cables are connected to
the bus
2.
The phase-sequence is correct
3. All three phases are energized
4. One of the three fuses has
blown
6-31.
Which of the following sensors is
used to determine the specific
level in a fuel tank at any given
time ?
1.
Tank level indicator (TLI)
2.
Liquid level indicator (LLI)
3.
Float level
4.
Contact level
6-32.
A typical TLI transmitter section
contains what type of voltage
network?
1.
Multiplier resistor
2.
Multiplier inductor
3.
Divider resistor
4.
Divider inductor
6-33.
In a seawater-compensated fuel
tank, the float of the TLI is
designed to stay at what location?
1.
At the top of the fuel
2.
At the seawater/fuel interface
3.
At the bottom of the seawater
4.
Between the seawater/full
interface and the top of the
tank
6-34.
To measure the rotational speed of
a shaft, what instrument is
commonly used?
1.
A hydrometer
2.
A tachometer
3.
A manometer
4.
A barometer
The propeller indicator mounted on
6-35.
6-36.
6-37.
6-38.
6-39.
the propulsion shaft can give which
of the following information about
the shaft rotation?
1.
The direction of rotation
2.
The number of revolutions
3.
The speed of rotation
4.
All of the above
What tachometer has a flashing
light that determines the speed of
a rotating shaft?
1.
Hand-held mechanical
2.
Resonant reed
3.
Stroboscope
4.
Chronometric
What instrument is used to indicate
the salt content of the ship’s
distilled water?
1.
A liquid level indicator
2.
A salinity indicator
3.
A pressure indicator
4.
A chemical indicator
To apply a specific, predetermined
amount of torsion to a bolt on the
main engine, you should use what
type of wrench?
1.
Torque
2.
Rachet
3.
Crescent
4.
Combustion
While using a micrometer-setting
torque wrench, the user knows the
desired torque has been reached
when
1.
a predetermined setting iniates
an audible click
2.
the needle reaches the desired
torque on the dial indicator
3.
the deflecting beam reaches the
desired torque
4.
the pointer reaches the torque
indicator
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