30.任何一種起貨機，為適應運用上之需要，必須具備各項重要性能，其中「荷重」須能勝任額定負載多少%之靜止貨物，亦不致損壞起貨機任何部份之架構？ (A)100 (B)150 (C)200 (D)250

9.Blowers are used with many diesel engines to supply the air necessary for combustion to the engine’s cylinders. When the pressure of this air is increased above atmospheric pressure, referred to as supercharging, the power output of engine is increased. In addition, in a two-stroke engine the air supplied by the blower helps to purge the engine’s cylinders of exhaust gas. This is referred to as scavenging. Based on these descriptions, please specify the correct statement. (A)The scavenging and supercharging processes share identical purpose of increasing the static pressure in the intake pipes. (B)The use of blow for scavenging and supercharging is due to its characteristics of high-pressure and low volumetric flow rate. (C)The blower for marine application is always the centrifugal type as it offers the high speed characteristic. (D)The scavenging in a two-stroke engine assists to purge the engine’s exhaust gas which has beneficial effect for combustion.

30.任何一種起貨機，為適應運用上之需要，必須具備各項重要性能，其中「荷重」須能勝任額定負載多少%之靜止貨物，亦不致損壞起貨機任何部份之架構？
(A)100
(B)150
(C)200
(D)250

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30.任何一種起貨機，為適應運用上之需要，必須具備各項重要性能，其中「荷重」須能勝任額定負載 多少%之靜止貨物，亦不致損壞起貨機任何部份之架構？ (A)100 (B)150 (C)200 (D)250

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相關試卷

30.任何一種起貨機，為適應運用上之需要，必須具備各項重要性能，其中「荷重」須能勝任額定負載多少%之靜止貨物，亦不致損壞起貨機任何部份之架構？
(A)100
(B)150
(C)200
(D)250