COMPETENCE 4 -Operate Main and Auxiliary Machinery and – Associated Control Systems
Results
Congratulations! Share the result.
Try again. There is always a chance. Review the results.
#1. A badly leaking refrigeration compressor discharge valves will cause_______.
Incorrect!
#2. . A suitable location for the installation of an impulse type steam trap would be in the __________.
Incorrect!
#3. Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?
Incorrect!
#4. The separation chamber of the purifier is called ________.
Incorrect!
#5. . A high reading at a salinity cell located in the loop seal between two stages of a flash type evaporator indicates ________.
Incorrect!
#6. Main component of the engine to regulate speed is the _______.
Incorrect!
#7. Short cycling of a refrigeration compressor refers to ________.
Incorrect!
#8. The purpose of wear ring in the centrifugal pump is to ______.
Incorrect!
#9. The high pressure side of the refrigeration systems starts from the______.
Incorrect!
#10. The low pressure side of a refrigeration system is considered to exist from the _______.
Incorrect!
#11. Condensers located in the various stages of the flash evaporator are cooled by ______.
Incorrect!
#12. Diesel engine jacket water is used in the fresh water distillation process as the ________.
Incorrect!
#13. Unloader in air compressor is use to ________.
Incorrect!
#14. The heat gained per pound of refrigerant in the evaporator is known as the __________.
Incorrect!
#15. Component of an engine used to increase scavenging air is called __________.
Incorrect!
#16. 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!
#17. 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!
#18. The dehydrator of a refrigeration system is located ______.
Incorrect!
#19. 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!
#20. Which characteristic of the theoretical Otto cycle does not occur in the theoretical Diesel cycle.
Incorrect!
#21. Type of pump which is dependent of the head is ______.
Incorrect!
#22. 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!
#23. If the temperature of the fuel oil entering in atomizer is too low, the burner will ________.
Incorrect!
#24. The by-products of oxidation, as a result of water contamination of hydraulic oil, are generally ________.
Incorrect!
#25. Stern tube is used to _______.
Incorrect!
#26. Parts of the pump used to maintain the alignment of the pump are ________.
Incorrect!
#27. A protective device use to prevent over torque during starting of an Air Compressor is called ________.
Incorrect!
#28. The storage tank for liquid refrigerant in a refrigeration system is called_________.
Incorrect!
#29. The operation of a thermostatic steam trap depends upon the ___________.
Incorrect!
#30. Air leaking into a flash type distilling plant could occur through_______.
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.
DISCLAIMER
The questionnaires contained in this “reviewer” are extracted from the post released by MARINA on their official website and other review materials. Please note that Seaman Kowts is not affiliated with, endorsed by, or connected to the official website of MARINA. The information provided on this website is for general informational and educational purposes only and should not be relied upon as official or authoritative. If you require official information or services, please visit the official website or any relevant review center. We do not assume any responsibility or liability for any consequences resulting from the use of information or services provided on this website.
