COMPETENCE 1 – Maintain a Safe Engineering Watch
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#1. A closed freshwater cooling system is commonly used with marine diesel engines because the:
Incorrect!
#2. A diesel engine cylinder has a swept volume of 130.5 cubic inches and a clearance volume of 9.0 cubic inches at top dead center. What is the compression ratio of the engine cylinder?
Incorrect!
#3. A diesel engine cooling water system with a pH factor of 3.0 indicates a condition of:
Incorrect!
#4. A bendix drive starting motor disengages the drive gear from the flywheel by:
Incorrect!
#5. A diesel engine indicator diagram has an area of 22 cm2 and a length of 12.5 cm. If the scale of the indicator spring is 1 mm = 1 kg/cm2, what is the cylinder mean effective pressure?
Incorrect!
#6. A compound Bourdon tube type pressure gage is capable of measuring:
Incorrect!
#7. A diesel engine cylinder has a swept volume of 104 cubic inches and a clearance volume of 8 cubic inches at top dead center. What is the compression ratio of the engine cylinder?
Incorrect!
#8. A hole should be made in the sagged tube occurring in a water- tube boiler, prior to plugging the tube to prevent a.
Incorrect!
#9. A diesel engine indicator diagram measures 12.5 cm in length and has an area of 22 cm2. What is the cylinder mean effective pressure if the spring used has a scale of 1.25 mm equals 1 kg/cm2?
Incorrect!
#10. A diesel engine cylinder has a swept volume of 135 cubic inches and a clearance volume of 10 cubic inches at top dead center. What is the compression ratio of the engine cylinder?
Incorrect!
#11. A fuel oil tank pneumercator will give an inaccurate reading if the:
Incorrect!
#12. A fuel tank on your vessel is 20 feet high, 20 feet long and 20 feet wide. If it is filled 100% with fuel having an API gravity of 35.7 at a temperature of 60°F, how many long tons of fuel are in the tank?
Incorrect!
#13. A diesel engine cylinder has a swept volume of 125 cubic inches and a clearance volume of 10 cubic inches at top dead center. What is the compression ratio of the engine cylinder?
Incorrect!
#14. A piston is said to be at top dead center when it is:
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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