36.具有定功率流量調節裝置的液壓泵，其輸出流量的大小取決於下列何者？
(A)輸入功率
(B)泵的轉速
(C) 外界負載
(D)液壓馬達的轉速

23.下列有關火災警報系統的電力設備敘述，何者不正確？ (A)電力源不應少於兩處 (B)其中之一應為應急電源 (C) 供電以共用饋電線為之 (D)饋電線應接至鄰近火災偵測系統控制盤之自動切換開關

24.供應冷藏間警報系統的電源配電板為何種配電板？ (A)無線電用 (B) 應急 (C)主 (D)副

25.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 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 charged air.

26.What temperature is recorded by a common thermometer? (A) Dry-bulb temperature (B)Wet-bulb temperature (C)Dew-point temperature (D)Flashing temperature

27.What will occur when two dissimilar metals are electrically coupled in the presence of an electrolyte such as sea water? (A)General corrosion (B) Galvanic corrosion (C)Crevice corrosion (D)Selective-phase corrosion

28.Which phenomenon in the nozzle flow could limit the maximum flow rate to that obtained at the critical pressure ratio? (A)Surging (B) Choking (C)Throttling (D)Shocking

29.Which device in a boiler has the purpose to prevent a rise in boiler pressure above specified safe limits? (A)Downcomer (B) Safety valve (C)Dry pipe (D)Economizer

30.The ignition delay associated with fuels of low ignition quality results in a late and more explosive start to the combustion period, which results in higher peak pressures and consequent rough and noisy operation. Therefore,＿＿＿＿＿＿＿ . (A)the ignition delay could increase the mean effective pressure of cycle (B) the more explosive start to the combustion period due to ignition delay could generate the higher peak pressure (C)the ignition delay associated with fuels of low ignition quality is beneficial for engine performance as it results in higher peak pressures (D)the ignition delay associated with fuels of low ignition quality could alleviate the noise generation

31.In the process of condensing the exhaust steam from the main or auxiliary turbines, steam condensate is recovered and is reused as feedwater. In a properly designed and maintained feedwater system the condensate is collected at the saturation temperature corresponding to compensating pressure. Therefore, which is the false statement? (A)The process inside a condenser is a constant pressure process. (B)The process inside a condenser is a constant temperature process. (C) The process inside an ideal condenser is a isentropic process. (D)The increase of saturation temperature increases the pressure inside a condenser.

32.螺槳的推力與吸收的功率和船速有何關係？ (A) 推力與功率和船速的三次方成正比 (B)推力與功率和船速的三次方成反比 (C)推力與功率成正比但與船速的三次方成反比 (D)推力與功率成反比但與船速的三次方成正比

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