1.壓縮機之滑油會隨冷媒進入冷凍系統，為回收這些散失的滑油，除裝置油分離器外，另在管路上設置何種機件使滑油回返壓縮機？ (A)上升管 (B)過濾器 (C)乾燥器 (D)均壓管

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.

1.壓縮機之滑油會隨冷媒進入冷凍系統，為回收這些散失的滑油，除裝置油分離器外，另在管路上設置何種機件使滑油回返壓縮機？
(A)上升管
(B)過濾器
(C)乾燥器
(D)均壓管

相關試題

相關試卷

1.壓縮機之滑油會隨冷媒進入冷凍系統，為回收這些散失的滑油，除裝置油分離器外，另在管路上設 置何種機件使滑油回返壓縮機？ (A)上升管 (B)過濾器 (C)乾燥器 (D)均壓管

相關試題

相關試卷

1.壓縮機之滑油會隨冷媒進入冷凍系統，為回收這些散失的滑油，除裝置油分離器外，另在管路上設置何種機件使滑油回返壓縮機？
(A)上升管
(B)過濾器
(C)乾燥器
(D)均壓管