COMPETENCE 4 -Operate Main and Auxiliary Machinery and – Associated Control Systems
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#1. Stern tube is used to _______.
Incorrect!
#2. Type of pump which is dependent of the head is ______.
Incorrect!
#3. Part of centrifugal disc purifier use to hold discs in place and directs the flow of dirty liquid to the bottom then to the discs as the oil flows upward is called ______.
Incorrect!
#4. Unloader in air compressor is use to ________.
Incorrect!
#5. Component of an engine used to increase scavenging air is called __________.
Incorrect!
#6. Air leaking into a flash type distilling plant could occur through_______.
Incorrect!
#7. The storage tank for liquid refrigerant in a refrigeration system is called_________.
Incorrect!
#8. Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?
Incorrect!
#9. A badly leaking refrigeration compressor discharge valves will cause_______.
Incorrect!
#10. A material use to protect the internal parts of air compressor from solid particles which can be sucked along with fresh air is called_________.
Incorrect!
#11. Main component of the engine to regulate speed is the _______.
Incorrect!
#12. If the temperature of the fuel oil entering in atomizer is too low, the burner will ________.
Incorrect!
#13. Condensers located in the various stages of the flash evaporator are cooled by ______.
Incorrect!
#14. A protective device use to prevent over torque during starting of an Air Compressor is called ________.
Incorrect!
#15. Which of the listed types of steam traps operates on the principle that hot water flashes to steam when its vapor pressure is reached?
Incorrect!
#16. The low pressure side of a refrigeration system is considered to exist from the _______.
Incorrect!
#17. Diesel engine jacket water is used in the fresh water distillation process as the ________.
Incorrect!
#18. The by-products of oxidation, as a result of water contamination of hydraulic oil, are generally ________.
Incorrect!
#19. The heat gained per pound of refrigerant in the evaporator is known as the __________.
Incorrect!
#20. . A suitable location for the installation of an impulse type steam trap would be in the __________.
Incorrect!
#21. The operation of a thermostatic steam trap depends upon the ___________.
Incorrect!
#22. The separation chamber of the purifier is called ________.
Incorrect!
#23. The purpose of wear ring in the centrifugal pump is to ______.
Incorrect!
#24. Short cycling of a refrigeration compressor refers to ________.
Incorrect!
#25. Which characteristic of the theoretical Otto cycle does not occur in the theoretical Diesel cycle.
Incorrect!
#26. It refers to an internal combustion engine practice, where there is a necessity of heating the oil, to ensure easy flow and good atomization.
Incorrect!
#27. . A high reading at a salinity cell located in the loop seal between two stages of a flash type evaporator indicates ________.
Incorrect!
#28. The dehydrator of a refrigeration system is located ______.
Incorrect!
#29. Parts of the pump used to maintain the alignment of the pump are ________.
Incorrect!
#30. The high pressure side of the refrigeration systems starts from the______.
Incorrect!
There are 30 questions for the actual examination for Competence 4 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 9 mistakes.
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