10. The energy per unit mass of a fuel is often quantified by the heating value of the fuel. The
heating values of the residual fuels are typically ________ ％ lower than the distillates.
(A) 5～7
(B) 8～10
(C)11～13
(D) 14～16
20. 使用厚薄規檢查導條和十字頭導板在J, K, L, M位置的間隙，翻譯成英文為Checked the
clearance between guide strips and crosshead guide at position J, K, L and M by means
of________.，其空格為下列何者？
(A) micro meter
(B) dial gauge
(C) thickness gauge
(D) depth gauge
22. This type of units is covered by a wide range of designs, and they are commonly used,
particularly for more viscous liquids such as lubricating oil. What pumps are above description?
(A) Gear and Screw type pumps
(B) Gear and Centrifugal type pumps
(C) Screw and Centrifugal type pumps
(D) Ejector and Centrifugal type pumps
24. Selection of a relief valve is important. Which caution is not necessary to be considered?
(A) Correct size
(B) Have a good conductor of electricity
(C) Loading
(D) Limit of its set pressure
20. The ___________ that controls the output of generator adjusts the current feeding into a
small winding on the brushless exciter.
(A) voltage regulator
(B) rectifier
(C) transformer
(D) potentiometer
22. ________ is a device for separating different materials by means of an outward force on a
body rotating about an axis within the unit.
(A) purifier
(B) generator
(C) strainetr
(D) Homogenizer
24. I can tell you the actual internal____________ of a pipe depends upon the pipe standard
and schedule being used.
(A) density
(B) color
(C) diameter
(D) conduction
27. The main function of the intercooler of a multistage air compressor is what？
(A) to increase the enthalpy of working fluids
(B) to increase the entropy of working fluids
(C) to reduce the specific volume of working fluids
(D) to increase the internal energy of working fluids
36. What is the main function of labyrinth packing in a steam turbine engine？
(A) To improve dynamic balance
(B) To increase critical speed
(C) To reduce vibration
(D) To minimize leakage of working fluid
34. What is the function of thrust bearing?
(A) Preventing lateral movement of the slow speed gear.
(B) Transmitting propeller thrust to the hull.
(C) Keeping spring bearing in line.
(D) Preventing axial movement of main reduction gear.
32. What is required on high temperature piping to limit the surface temperature for personnel
protection, reduce the heat loss from the system, or prevent objectionable heat gain in enclosed
spaces？
(A) Orifice
(B) Connecting-joint
(C) Ventilation
(D) Insulation
) 5. Which situation do not need to stop engine for emergency in the following situations?
(A) Moisture is separated from the lubricating oil.
(B) An unusual sound has been made.
(C) Heat has generated unusually from a part.
(D) Smoke is issued from a bearing or any other moving part.
25. Which one is not the main function of detergent lubricating oil?
(A) Decreasing piston ring sticking
(B) Preventing lubricating in the engine
(C) Reducing wear of piston ring
(D) Reducing wear of cylinder
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