COMPETENCE 1 – Maintain a Safe Engineering Watch
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#1. A vessel departed from point “A” at 1206 with a counter reading of 616729 and arrived at point “B” with a counter reading of 731929 at 1148 the following day. This vessel is equipped with a 20 foot 8 inch diameter propeller, with a pitch of 20 feet. The observed distance of 404.16 miles was covered at an observed speed of 16.85 knots. What should be the apparent slip for this trip?
Incorrect!
#2. Exhaust gases in a two-stroke/cycle diesel engine are discharged through.
Incorrect!
#3. A pressure reading of 00.0 psig is theoretically equal to:
Incorrect!
#4. Circulation of boiler water to the water wall tubes is maintained by the:
Incorrect!
#5. As the amount of moisture in the air increases, what will happen to the difference between the dry bulb and wet bulb temperatures?
Incorrect!
#6. During unsafe firing conditions in a large automatic auxiliary boiler, various control actuators are interlocked with the burner circuit to prevent start up, in addition to safety shutdown. These controls are referred to as:
Incorrect!
#7. A ship travels 234.02 nautical miles in 24 hours at an average propeller speed of 60 RPM. If the propeller pitch is 20.07 feet, what is the propeller slip during this passage?
Incorrect!
#8. An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with:
Incorrect!
#9. Boiler refractories previously baked out and fired are most sensitive to:
Incorrect!
#10. A seven cylinder, 2-stroke/cycle, single acting diesel engine has a 750 mm bore and a 2000 mm stroke. What indicated power will be developed if the average mean effective pressure is 14.8 kg/cm2 at a speed of 96 RPM?
Incorrect!
#11. A seven cylinder, two-stroke/cycle, single acting diesel engine with a cylinder indicated horsepower calculated as 1350 kW and brake horsepower measured at 7466 kW has a mechanical efficiency of.
Incorrect!
#12. A unit of measure used to express the chloride content of boiler water is?
Incorrect!
#13. Before using a boiler compressed air soot blower system, you should:
Incorrect!
#14. An automated diesel engine should normally shut down due to.
Incorrect!
There are 14 questions for the actual examination for Competence 1 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 4 mistakes.
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