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101 年 - 交通部101年第一次航海人員測驗一等管輪#20476 

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1.1.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
2.2.三段效用式造水機,其第三段之加熱熱源為何?
(A)第一段產生的淡水
(B)第二段產生的蒸汽
(C)第三段產生的淡水
(D)第四段產生的蒸汽
3.3.離心式淨油機利用高速旋轉產生離心力的澄清(分離)原理,主要藉由下列些因素分離油、水、雜 質?
(A)油、水、雜質的旋轉速度不同
(B)油、水、雜質的黏度不同
(C)油、水、雜質的密度不同
(D)油、水、雜質的離心加速度不同
4.4.下列何者為泵的機械效率?
(A)實際揚程與理論揚程之比
(B)理論流量與實際流量之比
(C)有效功率與軸功率之比
(D)理論計算的功率與輸入功率之比
5.5.泵正常工作時,下列何者與其排出壓力無關?
(A)吸入高度
(B)轉速
(C)流量
(D)排出閥開度
6.6.單級離心泵閉式葉輪後蓋板開有圓孔之目的為何?
(A)減輕葉輪重量
(B)調節壓頭
(C)使葉輪軸向力平衡
(D)平衡徑向力
7.7.內降熱器(Internal desuperheater)位於鍋爐的:
(A)煙道內
(B)爐膛內
(C)汽鼓內
(D)水鼓內
8.8.What is the art to sail a vessel safely and quickly from one port to the other?
(A)Navigation
(B)Transportation
(C)Aeronautic transportation
(D)Global positioning system
9.9.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.
10.10.推進軸系中間軸承的潤滑方式,由油盤式取代油環式的潤滑方式,其優點為何?
(A)防止滑油漏出軸承
(B)減少軸頸的的磨損
(C)在低轉速時潤滑效果較好
(D)使其具有較高的剛度
11.11.蒸發潛熱大為選擇冷媒條件之一,其理由為何?
(A)可以減少冷媒之爆炸性
(B)減少冷凍油之使用量
(C)防止冷媒與金屬發生化學作用
(D)可以減少冷媒之循環量
12.12.下列何種冷媒由於被懷疑會破壞大氣臭氧層,目前已被禁用?
(A)NH3
(B)R-134a
(C)R-12
(D)CO2
13.13.電動往復泵與電動離心泵比較,其優點為:
(A)出口流量大
(B)出口壓力高
(C)起動時需要引注水
(D)抽吸力低
14.14.多級離心泵採用導輪做能量轉換裝置之原因為何?
(A)耗功較少
(B)製造方便
(C)結構簡單
(D)易於修理
15.15.總效率最低的油壓馬達為下列何者?
(A)軸向柱塞式
(B)五星輪式(柱塞式)
(C)徑向柱塞式
(D)翼片式
16.16.下列何者將舵機產生的動力,經同步器、油壓裝置、鍊條、齒輪、扇型板(Quadrant)、舵柄 (Rudder tiller)、舵桿(Rudder stock)或其他方法等傳給舵板,轉動舵,以達到船舶轉向的裝 置?
(A)原動機(Prime mover)
(B)操縱裝置(Controlling gear)
(C)操舵裝置(Rudder gear)
(D)追蹤裝置(Hunting gear)
17.17.油輪為防止油槽爆炸而使用惰性氣體,應使用何種測具測定惰性氣體內的含氧濃度?
(A)二氧化碳指示器
(B)氮氧化物指示器
(C)氧氣指示器
(D)氫氣指數表
18.18.氣缸油的鹼性,是以下列何種方式來表示?
(A)TBN值
(B)TAN值
(C)TON值
(D)NUM值
19.19.離心泵與往復泵相比,下列何者是離心泵主要的特點?
(A)不能抽送含雜質的污水
(B)自吸能力差
(C)流量不均勻
(D)管理維修較麻煩
20.20.Which type of boiler depends on the heat input to establish differential densities between the steam-and-water mixture flowing in the riser or generating circuits and the water flowing downward in the downcomer circuits?
(A)Once-through
(B)Natural-circulation
(C)Forced-circulation
(D)Two-furnace, forced circulation superheat
21.21.When the fluid is moved over the heat transfer surface by an external force, such as that provided by a pump, which type of heat transfer is referred to?
(A)Natural convection
(B)Forced convection
(C)Centrifugal heat transfer
(D)Two-phase convection
22.22.Which phenomenon will take place in a steam turbine when the nozzle-passing frequency stimulus is coincident with a turbine blade natural frequency?
(A)Surging
(B)Choking
(C)Knocking
(D)Resonance
23.23.艉軸管潤滑系統內之油壓與船外海水壓力的關係為何?
(A)油壓大於海水壓力
(B)油壓等於海水壓力
(C)油壓小於海水壓力
(D)油壓與海水壓力無關
24.24.油浴式艉軸軸封其艉軸軸承的磨耗量(Wear down)的量測部位為:
(A)左側
(B)頂部
(C)右側
(D)全周圍隨機選取之部位
25.25.下列軸系圖示中第①項所標示部位的名稱為:
 
(A)前軸封
(B)後軸封
(C)前軸承
(D)後軸承
26.26.油壓頂桿啟閥式調節機構的冷凍壓縮機在何種情況下卸載?
(A)滑油壓力太高
(B)滑油壓力太低
(C)吸氣壓力太高
(D)排氣壓力太高
27.27.空調取暖工況,向送風噴入蒸汽或水霧之原因為何?
(A)外界空氣相對濕度太低
(B)外界空氣相對濕度太高
(C)需要淨化送風
(D)室內空氣須保持比室外更大的相對濕度
28.28.下列何種閥必須於瞬間全開或全關?
(A)安全閥(Safety valve)
(B)減壓閥(Pressure reduction valve)
(C)洩壓閥(Pressure relief valve)
(D)調節閥(Regulating valve)
29.29.舵機系統其安全裝置,當大風浪猛擊舵面時,舵面受到壓力而將安全彈簧一邊壓縮及一邊伸張,或 將安全閥打開,使舵暫時失去控制而能自由轉動,藉以避免何種損壞?
(A)拉力
(B)壓力
(C)剪力
(D)過扭
30.30.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
31.31.量測船舶油櫃或爐水液面位置時,係運用該液體性質中那一種物理量變化之差異來作檢測?
(A)液體溫度變化量所致的壓力變化
(B)液體流量變化量所致的壓力變化
(C)液面高度變化量所致的壓力變化
(D)液面瞬時變化量所致的壓力變化
32.32.分散式控制系統的主控權為現場控制單元,而控制室內電腦的主要功能則為負責何種工作狀態?
(A)監督機艙內各控制迴路
(B)控制機艙內各控制迴路
(C)計算機艙內各控制迴路
(D)模擬機艙內各控制迴路
33.33.測量氣缸內徑時須用何種量具?
(A)內徑分厘規
(B)橋規
(C)螺旋測微器
(D)游標卡尺
34.34.下圖所示,本專用工具之功能為何?
 
(A)缸頭吊具
(B)活塞吊具
(C)缸套吊具
(D)活塞張開工具
35.35.A main diesel engine is generally started by:
(A)Compressed air
(B)Electrical motor
(C)Hydraulic oil
(D)Hand power
36.36.下列那種粉狀金屬物質,不易因水份或濕氣影響,而氧化及放出熱量?
(A)錫
(B)鉀
(C)鈣
(D)鈉
37.37.此圖示,其代表意義為何?
 
(A)輻射物質
(B)自燃物質
(C)鏽蝕物質
(D)與水反應物質
38.38.人員安全艙區之定義,下列何者不符合條件?
(A)艙區可燃性氣體濃度必須低於燃燒下限值至少10%以上
(B)毒性氣體物質的濃度須在允許標準之內
(C)艙區含氧量至少為20%以上
(D)符合規定標準的艙區中的殘留物質,不會再產生任何毒性氣體物質
39.39.For diesel engines, which equipment can pressurize the fuel prior to entering the fuel injector?
(A)Blower
(B)Turbocharger
(C)Fuel injection pump
(D)Feed pump
40.40.Which device in the fuel injection system of a diesel engine has a spring loaded fuel valve mounted on the fuel nozzle?
(A)Fuel injector
(B)Fuel injection pump
(C)Plunger pump driven by camshaft
(D)Discharge check valve