10. Do not run the engine in the ______ rpm range.
(A) torsional vibration critical
(B) property speedle critical
(C) lower power load
(D) manual operational
14. If the critical RPM that may cause serious vibrations is within the normal rotational speed
range of the engine, what action shall be taken?
(A) quickly avoid the critical RPM
(B) remain at the critical RPM
(C) stop the engine
(D) slow down the engine
17. A _______ is designed to save the lives of onboard people in case of emergency at sea.
(A) fire extinguisher
(B) safety valve
(C) lifeboat
(D) multimeter
18. What may happen if the safety devices are used wrongly?
(A) increase engine performance
(B) cause serious accident, injury or death
(C) reduce brake specific fuel consumption
(D) increase overall power output
19. Which kind of spanner is the one-piece wrench with an enclosed opening that grips all the
faces of a bolt or nut?
(A) Open-end spanner
(B) Screw spanner
(C) Ring spanner
(D) Adjustable spanner
27. The ______ is kept at a convenient place in the engine room.
(A) personal daily book
(B) resume of engine
(C) engine logbook
(D) application for fresh water