COMPETENCE 6 – Operate Electrical, Electronic and Control Systems
Results
Congratulations! Share the result.
Try again. There is always a chance. Review the results.
#1. By what means is the voltage of an operating AC turbo generator raised or lowered?
Incorrect!
#2. Compared to the original wire, what will be the resistance of a replacement wire having twice the length and one-half the cross-sectional area of the original?
Incorrect!
#3. An electro-magnetic relay is most commonly used for what purpose?
Incorrect!
#4. Besides voltage and frequency, what other factor must be the same when alternators are operating in parallel?
Incorrect!
#5. By what mechanism does a reverse-power relay prevent AC generator motorization?
Incorrect!
#6. At high discharge rates, why are nickel-cadmium storage batteries superior to lead-acid batteries?
Incorrect!
#7. Compared to the fuse being replaced, what should be the characteristic of the replacement fuse for a fuse that blows often?
Incorrect!
#8. An insulation resistance test is performed on a particular piece of electric equipment. In addition to the resistance reading and date of test, what information listed below should be entered in the electrical log?
Incorrect!
#9. By what means is a constant output voltage from an AC generator maintained?
Incorrect!
#10. Capacitors can be used in electric distribution systems to improve power factor. This is accomplished by seesawing energy between the capacitor and what device or devices?
Incorrect!
#11. Capacitance is the property of an electric circuit opposing a change in what value of a circuit?
Incorrect!
#12. Consider a series circuit employing two resistors. What is true about the resistance value of the second resistor compared to the first when the voltage drop across the first resistor is one half the source voltage?
Incorrect!
#13. As load is added to an AC generator provided with constant field excitation, the prime mover slows down. What immediate effect will this have on frequency and voltage?
Incorrect!
#14. By what means does a molded-case circuit breaker provides protection against short circuits?
Incorrect!
#15. An increase in which of the listed conditions will increase the speed of a synchronous electric motor?
Incorrect!
#16. By what means is the division of the reactive kVAR load between paralleled AC generators automatically controlled?
Incorrect!
#17. By what means is the rotation of a three-phase induction motor reversed?
Incorrect!
#18. By what means is the frequency of an alternator adjusted from the main switchboard?
Incorrect!
#19. Besides voltage regulation, what is a function of the voltage regulators used with AC generators?
Incorrect!
#20. Compared to conventional alternators, brushless alternators are designed to operate without the use of what?
Incorrect!
There are 20 questions for the actual examination for Competence 6 for OIC-EW with a passing rate of 70%. This means that you are only allowed to make 6 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.
