5. __________ is the gas exchange process in which the charge air passes is directed
upwards, passing under the cylinder cover and down the opposite side, expelling exhaust gas
through exhaust ports on that side.
(A) Loop flow scavenging
(B) Cross flow scavenging
(C) Uniflow scavenging
(D) Standard flow scavenging
6. One type of pumps whose volume of a chamber or chambers is alternately increased to
draw the liquid in from the suction pipe and then decreased to force the liquid out into the delivery
pipe. What type of pumps is not above
(A) Centrifugal pump
(B) Displacement pump
(C) Gear pump
(D) Rotary pump
7. What equipment is necessary aboard vessels to prevent the discharge of oil overboard
when pumping out bilges, ballasting or when cleaning oil tanks?
(A) Compressor
(B) Oil-water separator
(C) Actuator
(D) Evaporator
12. 10:30 開啟造水機補充鍋爐給水櫃之英文為10:30 Started fresh water generator to________
the boiler water feed water tank.其空格為下列何者？
(A) make up
(B) dig up
(C) heat up
(D) drain out
13. Scavenging air enters the cylinders of the diesel engine, via air flaps, through the
scavenging ports when the pistons are nearly at their ____________ position.
(A) Top dead center (TDC)
(B) bottom dead center (BDC)
(C) mid-way stroke
(D) ignition time
14. The rating of a main propulsion diesel engine is usually expressed as the ___________
(MCR) .
(A) minor continuous rating
(B) most continuous rating
(C) minimum continuous rating
(D) maximum continuous rating
16. A steam trap works automatically and is put into drain lines so that these drain off
condensate automatically without passing any steam. One type of operated traps utilizes floatcontrolled
needle valves to trap steam or air. Some use open floats, other ball type floats. What
type of operated traps is above description?
(A) Thermostatic trap
(B) Mechanical trap
(C) Thermodynamic trap
(D) Vacuum trap
22. Select one from the following descriptions which is not meet the requirement of desirable
properties of a primary refrigerant
(A) Boiling Point of the refrigerant should be high.
(B) The refrigerant vapors should be easily condensible.
(C) The refrigerant vapor should have low 'Specific Volume'
(D) Critical Temperature of the refrigerant should be high.
28. The principal reason for turbocharging is to increase the power output of an engine of
given size and speed, by enabling the cylinders to be charged with air at an elevated pressure
and, therefore, at a higher density than air at atmospheric pressure. What is the main purpose to
use a turbocharger？
(A) To elevate the density of air in order to decrease the pressure in cylinder.
(B) To elevate the pressure of air in order to decrease the density in cylinder.
(C) To improve the power output of an engine of given size and speed by increasing the
compressed air intake temperature.
(D) To improve the power output of an engine of given size and speed by increasing the density of
charged air.
34. What is the fluid employed as the heat absorber or cooling agent in any refrigerating
process？
(A) Refrigerator
(B) Refrigeration
(C) Refrigerant
(D) Designation liquid
35. The reciprocating motion of the piston is converted to the rotary motion that drives what？
(A) camshaft
(B) turbocharger
(C) crankshaft
(D) governor
38. Which type of marine propulsive engine is particularly suitable for merchant ships due to
its structure simplicity and fuel economy？
(A) Diesel engine
(B) Steam turbine engine
(C) Gas turbine engine
(D) Gasoline engine
40. What are the speeds of the rotors that shall be carefully calculated in order to avoid the
resonance at normal running speeds？
(A) Exciting speeds
(B) Virtual speeds
(C) Critical speeds
(D) Damping speeds
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VIP與詳解卡管理
