MKC SWE EXAM/ MKC SWE EXAM PREPARATION /MKC SWE
PRACTICE EXAM NEWEST 2025/2026 COMPLETE 400
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |BRAND NEW VERSION!!
what filter element in an OWS is used to remove small particles such as shaving
and dirt from the oily water mixture - Correct Answer-pre-filter
before working on or removing any parts of the air compressor, you should make
sure the following conditions are completed - Correct Answer-the compressor is
completely blown down and the pressure is relieved
before and during the operation of the R/O what type of general inspection
should be conducted - Correct Answer-make sure the flowmeters are clear and
floats are visable
which safety precaution should be observed during R/O operation - Correct
Answer-make sure all pressure relief valves dischards are unobstructed and the
release fluid is conducted to low pressure area clear of personnel
what are the three effects of excessively worn rudder shaft bearings - Correct
Answer-1. imprecise and poor steering response
2.excessive vibration
3. leakage through the rudder post housing
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what component registers cumulative volume in gallons of permeate being
produced by the R/O unit and being used by the ship - Correct Answer-Totalizing
flow meter
normally a diesel engine start air bank has a minimum capacity for how many cold
and hot starts - Correct Answer-1 cold and 9 hot
when conducting performance test, engines should be operated at what
percentage of coat guard load - Correct Answer-80-90%
the ODR facilitates what type of operating data - Correct Answer-1. trend
recording
2. event recording
3. dynamic recording
4. alarm recording
5. trip recording
what are the effects of a damaged propeller - Correct Answer-1. lack of power
2. high fuel consumption
3. unexpected vibration
high pressure pump creates ___ to____ PSI achieve reverse osmosis - Correct
Answer-700-1000 PSI
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pulsation dampener absorbs pulsations created on the discharge side of a high
pressure pump consisting of nitrogen charged rubber bladder charged to
approximately - Correct Answer-2/3 system pressure
If the low pressure switch predetermined setting isn't met (on 110's it is 5 psi) -
Correct Answer-low pressure switch secures the high pressure pump
list the possible causes of low or variable cylinder compression - Correct Answer-
1. damaged head gasket
2. damaged pistons
3. broke or stuck piston rings
4. scored cylinder walls
5. stuck valves (four stroke)
6. Incorrectly adjusted valves(four stroke)
what are the three main areas of concern when troubleshooting a hard starting
engine? - Correct Answer-1. ignition
2.fuel
3. compression
what are the seven primary indicators for completing DEMPs? - Correct Answer-1.
cylinder compression pressure
2.cylinder firing pressure
3.cylinder exhaust temperature
4. crankcase vacuum
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5. intake manifold pressure
6. exhaust back-pressure
7. L/O consumption
ODR will record data automatically for all files under what circumstances - Correct
Answer-as long as ODR is turned on
propulsion units are also known as what three other common terms - Correct
Answer-1. reduction gears
2. transmissions
3. marine gears
what analytical tools are used to help in the determination of an engines center
section? - Correct Answer-1. full power trials
2. observation of engine operating characteristics
3. spectrochemical analysis of the L/O
4. observation and analysis of trends found in engine operating parameters
5. physical inspection of engine componets
how does the overspeed trip usually cut off fuel to the engine? - Correct Answer-
by isolating the governor from its oil supply, causing it to travel to the no fuel
position or it can override the governor and directly trip the fuel rack to the no
fuel position
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