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I. Tr¾c nghiÖm 1 Brass is an …………………of copper and zinc. A. alloy B. avoid C. mixture D. part 2 Aluminum, copper and bronze don’t contain iron. They are …………metals A. iron B. not iron C. ferrous D. non ferrous
Questions for revision- English for mechanical engineering I. Tr¾c nghiÖm 1 Brass is an of copper and zinc.………………… A. alloy B. avoid C. mixture D. part 2 Aluminum, copper and bronze don’t contain iron. They are metals………… A. iron B. not iron C. ferrous D. non ferrous 3 Metals which contain some proportion of iron may be attacked by ………… A. other metals B. corrode C. rust D. rustion 4 High-purity metal are more resistant than .…………………… A. alloys B. iron C. metals D. ferrous metals 5 What is the width of the bolt? It is 2cm .…………………… A. wide B. width C. in wide D. at width 6 A diesel engine is an engine which uses …………… A. oil B. diesel C. diesel oil D. diesel petrol 7 Which view is taken to show the most important or descriptive face? A. front view B left view. C. top view D. bottom view 8 The view obtained by looking at the object from below is called………… A. front view B left view. C. top view D. bottom view 9 An industrial drawing comprises several separately placed figures known as ……… A. observers B views C. directions D. figures 10 The view in drawing is the image of the face of the closest to the observer.……………… A. observer B object C. obtain D. subject 11 What do we call the tolerance which allows deviations from it in both sides? A. two side B unilateral C. bilateral D. one side 12 Designer who work with CAD don’t need to produce drawings on ………… A. computer B picture C. figure D. paper 13 What is one ten thousand mean? A.10,000 B. 1000/10 C. 1/10000 D. 10/1000 14 Which is used primarily to measure the hole diameter? A. outside caliper B. inside caliper C. hermaphrodite caliper D. caliper 15 In the smallest hole is bigger than the largest shaft.………… A. interference fits B. clearance fits C. mating parts D. engineering 16 The interior fitting parts are known as ……………………… A. shafts B. dimension C. diameter D. holes 17 The person who creates new products on paper or with CAD is a/an …………………… A. design engineer B. installation engineer C. production engineer D. technician 18 A tensile force is a force which can .a body.……… A. compress B. push C. make D. extend 19 Physical quantities are divided into groups- scalar and vector quantities. A. added B. classified C. subtracted D. multiplied 20.The length of the vector is to the magnitude of the force it represents.…………… A. proportional B. opposite C. equal D. longer 21 The intensity of stress depends on .………………… A. c.s.a B. size of the force C. stress D. both A and B 23 Distortion due to stress is called…………………… A. strain B. stress C stress and strain. D. tensile 23 Mild steel is material.…………… A. a plastic B. an elastic C a tough D. a corrosion-resistant 24 material can regain its shape and size after the forces are removed.………… A. rigid B. elastic C tough D. plastic 25 A/An .substance can be used to wear away a soften material.……… 1 A. formable B. organic C abrasive D. ductile 26 If a material is .it will tend to fracture under impact loads.…………… A. rigid B. brittle C hard D. elastic 27 The point the body is free to rotate is called the fulcrum.………… A. which B. in which C about which D. that 28 The point where the effort is applied to a lever is called. A. effort end B. load end C fulcrum D. rest end 29 A bent shaft for transmitting motion , changing from reciprocating to rotary and vice versa is .………… A. an axle B. an arm C. a crank D. a lever 30 The turning effect of a force about a fulcrum is known as the of the force.………… A. moment B. product C rotary. D. effect 31 The perpendicular distance between the force’s line of action and its fulcrum are measured. A. right distance B. left distance C. distance at right angle D. distance at left angle 32 Cast iron is a mixture of ………… A. steel and iron B. iron and bronze C. carbon and iron D. steel and carbon 33 The force of attraction exerted by huge mass of the earth is called .………………… A. natural force B. gravity C. stress D. strain 34 What takes place when austenite transforms into ferrite and cementite? A. hardening B. quenching C. transformation D. two-step change 35 The value of the constant of each elastic material is called the .……………… A. modulus of elastic B. elastic modulus C. modulus of elasticity D. elasticity modulus 36 Compression moulding is a common method thermosets.…………… A. to shape B. for shape C. for shaping D. both A & C 37 Levers .according to the relative positions of the load, the effort and the fulcrum.………… A. classify B. is classified C. are classified D. classified 38 A force to the roller to keep it in equilibrium.…………… A. must be applied B. must apply C. must applied D. apply 39 Heat treatment as the heating and cooling of metals to alter their properties.………… A. is defined B. are defined C. define D. defined 40 Alloys made from copper and nickel are ……………… A. corrosion-resistance B. resist corrosion C. corrosion-resistant D. corrosion 41 To manufacture complicated products, we need large sum of money. A no B little C a lot of D not 42 In order to manufacture at low cost, everything must be taken care of .the real ……………… manufacture. A after B before C in D of 43 The .is the first step in manufacturing.…………… A. first model B. original concept C. revised model D. none is correct 44 Unless mild steel is painted, it rust.…………… A. will B. won’t C. is D. are 45 If the doors a lift will not operate.…………………… A. aren t close ’ B. is close C. are close D. isn’t close 46 A machine which is used to grind a material is called a ………………… A. drill B. drilling machine C. grind D. grinding machine 47 Numerical control means control .…………………… A. by maths B. in maths C. in numbers D. by numbers 48 Which medium actually control the motion of numerical control machine tools? A. electric system B. electronic system C.electromechanica l system D. mechanical system 49 What is one of the principle advantages of numerical control? A. money reduction B. time reduction C. time increase D. money increase 50 Brass is an of copper and zinc.………………… 2 A. alloy B. avoid C. mixture D. part 51 Aluminum, copper and bronze are metals………… A. iron B. not iron C. ferrous D. non ferrous 52 When using NC machine tools, the amount of human error is greatly……………… A. increased B. decreased C. stay stable D. the same 53 Thermoset is .………… A. metal B. non-metal C. ferrous D. non-ferrous 54 Thermoplastics and thermosets are .………………… A. metals B. non metals C. ceramics D. iron 55 Ceramics can not stand high temperature. A. true B. false C. no information D. x 56 Corrosion is any chemical actions .harm the properties of a metal.……………… A. of which B. that C. who D. this 57 Stainless steel are usually known as metal.……………… A. corrosion- resistant B. corrosion- resistance C. corrode-resistant D. corrode- resistance 58 Galvanic corrosion is the same as .corrosion.……………… A. chemical B. electronic C. mechanical D. electric 59 The thin layer of .on the surface of the metal protects them from corrosion.……………… A. aluminum B. chromium C. oxide D. chromium oxide 60 Engineer have to make sure that two .metals are not allowed to touch together.……………… A. similar B. like C. dissimilar D. same 61 When aluminum sheets are riveted with copper rivets, the aluminum near the rivets will . in damp condition.…………… A. corrode B. corrosion C. corrodes D. not corrode 62 What is the width of the metal plate? It is 3m .…………………… A. wide B. width C. in wide D. at width 63 A diesel engine is an engine which uses …………… A. oil B. diesel C. diesel oil D. diesel petrol 64 Plastics are available in many form sheets, tubes, robs.………………… A. such B. such as C. so D. so that 65 Plastics have to atmospheric corrosion.………… A. resist B. resistant C. resistance D. resistion 66 Thermoplastics will soften when .and harden when……… ……… A. heated/cooled B. cooled/heated C. hot/cool D. cool/hot 67 What happen after the steel has been treated to the austenitic state? A. take place B. take on C. produce D. deal 68 Heat treatment is the heating and cooling of metals to change their properties. A. qualities B. characteristics C. wealth D. riches 69 To .steel, it must be cooled rapidly after being put into the austenitic condition.……… A. hard B. harder C. more hard D. harden 70 There are two possible ways of indicating the limit permitted for from the stated basic …………… size. A. variation B deviation C. accuracy D. error 71 The design of the measuring tools are very sophisticated. A. simple B. complex C. easy D. difficult 72 This section will deal with the measuring tools. A. dear B. work with C. solve D. tell 73 Machinists and tool makers use measuring tools in the everyday performance of their trade. A. workers B. engineers C. workers working with machines D. workers who produce machines 74 All precision measuring tools must be handle with care in order to avoid damage to them. A. accuracy B. similarity C. exactly D. true 75 Which is used primarily to measure the hole diameter? A. outside caliper B. inside caliper C. hermaphrodite D. caliper 3 caliper 76 What must the workman depend upon in order to make accurate measurement? A. sense of feel B. tip of finger C. finger D. skin 77 Which is used to measure the distance between a surface and a scribed line? A. hermaphrodite caliper B. out side caliper C. inside caliper D. telescoping gage 78 Which has two contact plungers? A. outside caliper B. inside caliper C. telescoping gage D. small hole gage 79 Bilateral tolerance is specified as a or minus deviation from the basic dimension.… A. add B. include C. plus D. zero 80 The maximum and minimum dimension resulting from the application of the designated tolerance are called .dimension.…………… A. deviation B. limit C. accuracy D. bilateral 81 Allowance is the intentional, desired difference in of two mating parts.………… A. dimension B. limit C accuracy. D deviation. 82 In fits, the largest shaft is smaller than the smallest hole.………… A. interference B. clearance C. inside D. outside 83 In interference fits, the hole is .than the shaft.………… A. bigger B. taller C larger. D smaller. 84 Workmen use their tip of fingers to decide the .of the tools.…………… A. dimension B. accuracy C. maximum D. minimum 85 The steel bar has a of 3 meters.…………… A. long B. in long C. length D. in length 86 The belt is sixty millimeters .……… A. in wide B. in width C. width D. of wide 87 The electricity pylon is 25 meters………………… A. height B. high C. in high D. of height 88 What is the of the oil tank?…………… A. deep B. in deep C. in depth D depth. 89 Plastics are used to make a great variety of product textiles engineer……… … A. such/as B. so/that C. from/of D. from/to 90 Plastics are used widely in engineering they are cheap.…………… A. because B. because of C. so that D. therefore 91 Plastics have resistance to atmospheric corrosion, they are not particularly strong.…… A. because B. because of C. however D. more over 92 Friction is essential in brakes it is a nuisance in an engine,…………… A. so B. however C. because D. therefore 93 Numerical control machine tools are very useful .they are used to machine parts in small ……… and medium quantities. A. therefore B. because C. but D. however 94 Numerical control machine tools can machine difficult shapes by means of a. A. robot B. automatic system C. tracer controlled unit D. NC controlled unit 95Mechanism is a component of machine that transmit or change …………… A. force B. effort C. motion D. movement 96 Parts which have teeth that can engage another wheel with teeth are called…………… A. bearings B. pinions C. jacks D. gears 97 An elastic material that returns to it original shape after being force out of that shape is ………… A. gear B. bearing C. spring D. cam 98 The bearings which contain small round balls and sometimes known as anti-friction are .……………… A. ball bearings B. roller bearings C. needle bearings D. non-contact bearings 99 Bearings that touch only at rest, in motion they are separated by gas are called………… A. ball bearings B. non-contact bearings C. roller bearings D. needle bearings 100 is motion in a straight line and goes back and forth in the same path.………… A. linear motion B. rotary motion C. translation D. reciprocating 4 motion 101 An international metric measure of power equal to one joule per second is known as ……… A. Watt B. Newton C. Kilowatt D. power 102 There are two main kinds of motion in engineering, they are rotary and .motion.………… A. linear B. straight C. reciprocating D. circular 103A twisting force that produces torsion or rotary motion is …………… A. compressive force B. tensile force C. torque D. effort 104 Machines whose input is a natural source of energy are called ………… A. machine tools B. movers C. machinists D. prime movers 105 Force must always occurs in .……………… A. couple B. pair C. two D. twice 106 The resistance to motion when one body is rotating but not on the same axis is…… A. sliding friction B. static friction C. rolling friction D. stop friction 107 In engineering, drilling machines, milling machines and lathes are called .………… A. numerical controls B. machine tools C. NC machines D. transfer types 108 Which medium actually controls the motions of numerical controlled machine tools? A. electric system B. electronic system C. electromechanical system D. mechanical system 109 Friction is sometimes a help it is a hindrance.…………… A. but B. so C. therefore D. and 110 Oil is used for bearing it is self-lubricating. ………… A. but B. however C. so D. because 111 A wheel with teeth that can engage another wheel with teeth to transmit or change motion is called . ………… A. bearing B. gearing C. gear D. wheel and axle 112 Friction is the to relative motion of two bodies in contact with each other.…… A. resist B. resistance C. resistant D.resistation 113. Which two factors must be specified in order to obtain the desired fit between mating parts? A. allowance and tolerance B. allowance and deviation C. accuracy and tolerance D. dimension and tolerance 114. The undesirable, but necessary and permissible deviation from a desired dimension is called …………… A. actual dimension B. tolerance C. limit dimension D. variation 115. There are vector quantities in engineering.………… A. only three B. many C. not many D. very few 116. Heat treatment is the of metal to change its properties.…………… A. heating B. cooling C. heating and colding D. heating and cooling 117. Tensile forces and compressive forces have effects on bodies.………………… A. same B. opposite C. different D.some 118. An organic material is a material which is based chemically on ………… A. carbon B. metal C. iron D. carbon dioxide 119. How many kinds of plastics used in engineering? A. only one B. 2 C. many D. so many 120.What does corrosion specially attack? A. plastic B. steel C. metal D. All above 121. can be completely corrosion-resistant.……………… A. Alloy B. Metal C. Chromium D. No material 122. In which countries does each view appear in a place appropriate to its name? A. The US B. France C. Canada D. both A and C 123. The hermaphrodite caliper is used to ……………… A. measure the distance between a surface and a scribed line B. to scribe a line from a surface C. to measure the distance between inside and outside. D. both A and B 124. We apply heat treatment primarily on ……………… A. iron B. steel C. wood D. gold 5 125. Within the elastic limit, If we double the stress on a body we will the strain produced. A. double B. triple C. reduce D. keep 126. What are the two most important ferrous metals? A. cast iron and steel B. iron and steel C. alloy and steel D. copper and aluminum 127. Cupronickels have resistance to A. fresh water B. salt water C. both A and B D. either A or B 128. Chromium can be added into steel to A. resist corrosion B. increase softness C. increase hardness D. both A and C 129. What may make a body rotate about a point and move in a straight line at the same time? A. An action B. A force C. A lever D. A jack 130. Levers are used to heavy blocks. A. move B. carry C. lift D. both A and C 131. How many groups of orders can levers be divided into? A. only one B. two C. three D. four 132. Levers are classified according to relative positions of . A. the effort B. the fulcrum C. the load D. All above 133. The wheelbarrow is a lever of A. the first class B. the second class C.the third class D. none 134. To gain more mechanical advantages, the distance between the point of effort and the fulcrum can be A. shortened B. lengthened C. either A or B D. neither A nor B 135. What are three remaining basic machines? A. the wedge, the inclined plane, the screw B. the wheel, the axe, the screw C. the wedge, the wheel, the axe D. the inclined plane, the wheel, the axe 136. Numerical machine tools are used to machine . A. large parts only B. small parts C. medium parts D. both B and C 137. Using numerical machine tools, we can the scrap rate during the manufacturing process. A. decrease B. increase C. slow down D. create 138. How many kinds of friction? A. one B. two C. three D. four 139. What is the modern development in which there is contact between the machine parts only at rest? A. bearing B. non- contact bearing C. roller bearing D. ball bearing 140. What are machines whose input is a natural source of energy? A. devices B. prime movers C. motions D turbines I. dịch việt anh 1Chúng ta có thể chia đòn bẩy thành nhóm theo trật tự xắp xếp giữa trọng tải, điểm tựa và ngoại lực 2.Kim loại có độ tinh khiết cao thờng có độ ăn mòn tốt hơn hợp kim 3.Véc tơ là một đại lợng có độ lớn và có hớng. 4Một vật liệu có tính đàn hồi có thể trở lại hình dáng ban đấu sua khi lực sinh ra biến dạng không còn 5.Sự ăn mòn tấn công tất cả các vật liệu cơ khí đặc biệt là kim loại. 6 Sự chống lại chuyển động tơng đối của các bộ phận chuyển động tiếp xúc với nhau là ma sát. 7Bôi trơn là một cách để giảm ma sát. 8 Có ba loại ma sát cơ học; ma sát tĩnh, trợt và lăn. 9 Ma sát xuất hiện trong tất cả các thiết bị cơ khí. 10 Đòn bẩy là ứng dụng của nguyên lý momen lực tại một điểm. 11 Ma sát là một lực mà ngăn cản chuyển động. 12 Dung sai hai chiều là sai lệch dơng và âm từ kích thớc cơ bản. 13 Hình chiếu đứng là bề mặt đợc mô tả nhiều nhất. 6 14 Hình chiếu thay đổi theo vị trí của ngời quan sát. 15Một điểm mà tại đó một vật thể có thể tự do xoay quanh gọi là điểm tựa. 7