In performing routine maintenance of a shis service alternator, what should be included? -
Answers Periodic cleaning of the air filters and screens
A single phase AC generator produces electricity using a single wave of AC current. what are AC
generators used for? - Answers Relatively light electrical loads
What is the advantage of a DC generator multi-coil armature? - Answers Produces smoother
current
What is a method of field excitation of a DC generator? - Answers Self-Excited
What is the purpose of brushes associated with a DC generator? - Answers Carry current to the
outside circuit
The generator consists of a shaft with a hub more often called a - Answers Spider
In a DC generator the output contacts that are made of a conductive carbon are called -
Answers Brushes
There are three sine waves at the generator output. How many electrical degrees apart from
each other are they? - Answers 120°
Which part is the armature (output of a DC generator) mounted on? - Answers Rotor
When the automatic voltage regulator senses a voltage drop in the output circuit, what should
happen? - Answers Lowers the resistance in the field circuit which raises the excitation current
you are asked to measure the continuity of a disconnected fuse what setting should you place
on your digital multimeter - Answers CO
what is the purpose of a megohmmeter? - Answers to test for broken insulation
what is true concerning the operation of a lube oil purifier is correct? - Answers they should be
operated at a maximum design speed and recommended operating capacity
the dirty oil inlet on centrifugal lube oil purifiers is located at the - Answers bottom of the tubular
bowl type
what type of eye protection affords the best protection from severe exposure to airborne impact
hazards? - Answers full face shield and safety goggles
for any piece of equipment requiring lubrication, what is the single most important lubricating oil
property in meeting the operating conditions? - Answers viscosity
when drilling blind holes with a standard drill press, the proper method of stopping the progress
of the drill boring through the work is by - Answers using a depth stop
, if you are given the Job of adding hydraulic fluid to a mooring winch and are not certain as to
the type of fluid to use, you should - Answers check the winch manufacturers instruction book
the best method of fixing a winch motor bearing of the sealed type that is running hot is to -
Answers replace the bearing with a new one
what application often requires a valve to be remotely operated from a control station, where
the valve itself is operated by an electric, pneumatic, or hydraulic motor? - Answers a large valve
that is routinely operated during plant operations
with regard to the relative flow patterns through the tubes and the shell of single pass shell and
tube heat exchangers, which statement is true? - Answers in a counterflow heat exchanger, the
flow the tubes and the flow through the shell are in opposite directions
energy imparted to the hydraulic fluid in an opening hydraulic system is stored in the - Answers
accumulator
in order to obtain the best performance with a lube oil purifier, the lube oil inlet temperature
should - Answers be maintained in a temperature range of 160-180 degrees F
of the many impurities commonly found in marine lubricating oil which one cannot be removed
by a centrifugal pump purifier at normal operating speeds and temperatures? - Answers Diesel
fuel oil
If a micrometer were opened to a distance of 0.0001 inch, you would say the reading is
__________. - Answers one ten thousandth if an inch
many micrometers are equipped with a ratchet stop at the end of the thimble to - Answers
prevent the user from closing the tool with too much force
when using a micrometer to measure a drill for size, you should measure across the drill -
Answers margins
to anneal a copper gasket, you should heat the gasket - Answers cherry red and quench in water
the Flashpoint of a residual fuel oil should be used to determine the highest temperature to
which the oil may be heated - Answers in a storage tank
when heated, fuel oil will - Answers expand in volume
Which condition could prevent a centrifugal condensate pump from developing its rated
capacity? - Answers closing the water seal line to the packing gland
which reciprocating pump parts control the position of the pilot slide valve? - Answers
Movement of the main piston through the steam cylinder
A thermostatic expansion valve is properly controlling evaporated superheat adjusting the valve