Anh văn chuyên ngành bài kiểm tra One of the purpose of the..............is to allow each drive wheel to turn at a different speed. A. transmission B. brakes C. drive train D. differential 2. A part that moves inside a cylinder to press mixture of air and fuel is called .............. A. connecting rod B. piston pin C. piston D. intake valve 3. A thing that protects a driver from wind and dust is called ................. A. windshield B. window C. windshield wiper D. cigar lighter 4. All have the property that the deflection of the spring is known ............ the spring rate. A. as B. than C. so D. suc
ANH VĂN CHUYÊN NGÀNH A VOCABULARY & GRAMMAR: One of the purpose of the is to allow each drive wheel to turn at a different speed A transmission hộp số B brakes C drive train hệ thống truyền D differential vi sai lực A part that moves inside a cylinder to press mixture of air and fuel is called truyền A connecting rod B piston pin C piston D intake valve A thing that protects a driver from wind and dust is called kính chắn gió A windshield B window cần gạt nước C windshield wiper D cigar lighter độ lệch All have the property that the deflection of the spring is known the spring rate A as B than C so D such The primary purpose of the system is to isolate the car body from the vertical motion of the wheel as they travel over the rough road surface A steering B transmission treo C suspension đánh lửa D ignition giảm chấn Similar to the , the shock absorbers also produce a force that acts to support the weight of the car A gears B springs C rings D rods All the following provide different gear ratios EXCEPT A manual transmission B automatic transaxle C manual transaxle D clutch Ly hợp giảm tốc The braking force that decelerates the car results from between the disk and the pads A corrosion B friction ma sát C wear D erosion C ball bearing D stud Did you buy a new set for these pistons yesterday? xéc măng A piston ring B gear 10 They have to use to connect piston and connecting rod A piston pin chốt piston B piston ring C bearing D piston pin locking ring 11 An electric part that supplies high voltage for spark plugs is called A ignition coil bôbin B alternator máy phát điện C air compressor D headlight 12 A part that is used to supply oil to every part of an engine is called A fuel pump B oil pump C water pump D air compressor 13 A is for braking car in a parking lot or emergency case A handbrake B steering wheel C tie rod end D car frame 14 The of this car is out of order I can’t start the engine A clutch pedal B brake pedal C electric starter D steering wheel 15 A part that helps two drive wheels to move with different speeds is called A differential vi sai B universal joint C spark plug D spiral spring 16 The drive shaft is used on front-engine, rear wheel drive vehicles to couple the transmission output shaft to the input shaft A clutch B suspension C wheel D differential 17 At the moment of explosion, the temperature within the cylinder is extremely high Cylinders are therefore provided with , through which water is rapidly circulated A guards B coats C jackets áo nước D sumps 18 From the clutch the power flows through the in one of several speeds and is delivered into the rear-axle drive gears A flywheel B springs C transmission D stabilizers 19 Flexible coupling, called universal joint, allows the rear axle housing and the wheels to move up and down while the transmission remains A stationary B moving C rotary D reciprocating 20 In an electronic control system, the devices that provide information are A sensors B outputs siết C actuators D control units đai ốc 21 You have to use a to tighten the stud nuts of cylinder head A pliers B open end wrench C torque wrench D allen wrench 22 In the electronic ignition system, the primary circuit is opened and closed by A a solenoid B contact points C a mechanism switch D an electronic switch đĩa xích xích đai 23 The camshaft is driven by sprockets and chain or toothed belt or by A the distributor shaft B an oil-pump gear C timing gears D a timing belt bugi xông máy cho động diesel vào trời lạnh 24 The purpose of the glow plug is to A control engine idle speed B provide sparks to ignite the compressed air-fuel mixture C warm the fuel D add heat to the precombustion chamber tăng nhiệt độ buồng đốt giúp khởi động dễ vào mùa đông 25 We have to use a/an to clean air for engine A oil filter B fuel filter C.air filter lọc khí D.windscreen 26 In a rear wheel drive vehicle, when the rear wheels move up and down đường truyền lực A The drive line changes length B the angle of drive changes C both A and B D neither A nor B 27 We have to use a/an to connect drive line Because it can move at varied angles A slide joint B ball joint C universal joint D spring hanger quán tính 28 The primary purpose of the is to provide inertia to keep the crankshaft rotating during the three no-power-producing strokes of the piston A flywheel bánh đà B steering wheel C piston D cylinder 29 You have to clean the if engine temperature is very high A oil filter tản nhiệt B radiator C crankcase D clutch housing 30 A part that is used for reducing shock of types to the car frame is called A shock absorber B lower control arm C balancing rod D idle arm hướng mong muốn Chức lái 31 Steering functions by rotating the plane of the wheels in the desired direction of the turn A rear B back C front D none is correct 32 A is used to make a camshaft turn and set it in firing order A counter gear B clutch gear C timing belt D camshaft bearing 33 Under the normal driving conditions, the brakes in contact with the disk, and the disk is free to rotate A can not B not C are not D can giảm tốc tiêu hao 34 Most of the energy of the car is dissipated by the brakes during deceleration and stopping A electrical động học B chemical C kinetic D lighting 35 A part of the engine that uses a cam to push the valves moving up and down is called A timing belt B camshaft C crankshaft D valve seat chuyển đổi 36 An engine is a machine for converting energy into motion or work A chemical B mechanical khí khí nén C hydraulic D pneumatic 37 The two basic types of piston engines are the A rotary and reciprocating B pushrod and reciprocating C gasoline and spark-ignition D spark-ignition and compression-ignition 38 The differences between the spark-ignition engine and the compressition-ignition are: A the type of fuel used B the way the fuel gets into the cylinder C the way the fuel is ignited D All of the above 39 Rudolf Diesel, a German engineer, the diesel engine A did B make C invented phát minh D.discovered 40 All the following are true about diesel engines EXCEPT A no throttle valve B high compression ratio bugi đánh lửa C spark plugs make starting easier D speed and power controlled by quantity of fuel injected Góc trùng điệp 41 Valve overlap is the number of degrees of crankshaft rotation during which A both intake and exhaust valves are closed B both intake and exhaust valves are open C the valves are moving from fully closed to the timing point D the valves float 42 An engine with the camshaft in the block operates the valve through A valve lifters cần đẩy xupap B pushrods mỏ cò C rocker arms D All of above 43 The two fuel systems used with spark-ignition engines are A carbureted and diesel B fuel injection and diesel C port and throttle body D fuel injected and carbureted kim phun chế hịa khí góc đánh lửa sớm 44 The device that provides spark advance by pushing the breaker cam ahead as engine speed increases is the chế đánh lửa sớm chân không A vacuum advance mechanism B throttle body C primary resistance D centrifugal advance mechanism 45 The two locations for the fuel injectors are xylanh đường ống nạp A in the cylinder and on the intake manifold C on the two sides of the air horn B in the throttle body and in the intake ports D in the intake manifold and in the exhaust manifold 46 In electronic ignition systems, the are replaced by an electronic switch A differential ngắt điện B breaker points C distributor D piston 47 A having a number of lobes equal to the number of cylinders is mounted on the distributor shaft A spark plug B ring C cam D spring 48 Which of these statements about a closed container is correct? A temperature increases with increasing pressure B pressure increases with increasing temperature C both A and B D neither A nor B thứ tự đánh lửa 49 The firing order is the A order in which the cylinders are numbered B sequence in which the cylinders deliver their power strokes C direction in which the crankshaft rotates gắn dọc D sequence in which the connecting rods attach along the crankshaft 50 The ignition system performs all the following jobs EXCEPT A controls the compression pressure B produces the spark that jumps the spark-plug gap C ignites the compressed air-fuel mixture D delivers the spark at the proper time động đốt 51 There are two basic types of internal combustion engines: A piston and reciprocating B reciprocating and rotary C reciprocating and pushrod D rotary and spark-ignition 52 A piston stroke is a piston movement from A BDC to TDC B TDC to BDC C both A and B D neither A nor B động kì 53 The correct order in which the four piston strokes occur in the engine is A intake, compression, power, exhaust B intake, power, compression, exhaust C compression, power, intake, exhaust D exhaust, compression, intake, power 54 Most devices on the car are powered by A the engine B electricity C electronics D vacuum buồng đốt 55 The cylinder head forms the upper end of the combustion chamber The lower end is formed by the A piston B compression ring C spark plug D valve 56 The volume that the piston displaces as it moves from BDC to TDC is the A compression stroke B compression rate C volumetric efficiency D piston displacement 57 The three basic cylinder arrangements for automotive engines are A flat, radial, V B in a row, in-line, opposed C in-line, V, opposed D V, double line, opposed 58 In the diesel or compression-ignition engine, the fuel mixes air it enters the engine cylinders A before B after C during D by 59 The only engine now used in automobiles is the Wankel engine A rotary B sterling C piston D hybrid 60 Automobile engines are normally started by means of an electric motor or that is geared to the crankshaft with a clutch that automatically disengages the motor after the engine has started A generator B shock absorber C supercharger D starter 61 The piston engine produces power by the áp suất nổ đẩy piston A rotation of the crankshaft B combustion pressure pushing on pistons C valve action D up and down movement of pistons để chuyển đổi chuyển động qua lại thành chuyển động quay 62 To change reciprocating motion to rotary, the engine has A a crankshaft and a camshaft B pistons and connecting rods C camshafts and connecting rods D connecting rods and a crankshaft 63 In all engines some means of igniting the fuel in the cylinder is provided, and the heat of combustion, all engines are equipped with some type of cooling system A although B where C since D because of 64 As the piston moves up the cylinder, the air-fuel mixture is compressed and the A temperature increases B pressure increases C air-fuel mixture gets hot D All of above 65 During combustion of gasoline in the engine A hydrogen unites with oxygen to form water B oxygen unites with carbon to form carbon dioxide C some carbon unites with oxygen to form carbon monoxide D All of above 66 During the stroke, the high pressure created by the burning mixture forces the piston downward A intake B compression C power D exhaust xec măng vòng chặn 67 The two kinds of piston rings are A pressure and sealing B oil-scraper and blowby C snap and sealing D compression and oil control 68 They use a to connect a piston to a crankshaft of an engine A connecting rod B machine key C pulley D fuel injector 69 A part that makes friction to the brake disk to stop wheel moving is called A piston seal B brake pad C returning spring D hub 70 A part that clears water on the windscreen is called A water filter B air filter C windsceen wiper D waterproof 71 A part that contains brake fluid and pushes fluid to move through brake line is called A wheel brake cylinder B master cylinder C caliper D reservoir 72 A part that is used to pull brake shoes back when the brake pedal is released is called spring A diaphragm B returning C coil D leaf 73 A part that gets mixed air for engine is called A air cleaner B exhaust valve C intake valve D air filter 74 A part that covers over the valves on a cylinder head is called A valve spring B valve sleeve C cylinder gasket D valve cover 75 In a transmission, a holds two gears moving at the same speed đồng tốc A synchronizing drum B gearshift lever trục trung gian C main shaft D counter shaft 76 Clutch disk lies between a pressure plate and a A torsional reducing spring B flywheel C cover D housing quay liên tục 77 Every engine must have a to keep the engine crankshaft moving at a constant revolution A release ball bearing B clutch C flywheel D pulley 78 They use a to push water through an engine and to cool engine A vacuum pump B fan C water jacket 79 Brake pedal is low You should adjust the of master cylinder A adjustable bolt trợ lực phanh B brake booster C adjustable pushrod D water pump mức dầu phanh D brake fluid level 80 They often use a/an to mix air and gasoline together A air filter B spark plug C air compressor chế hịa khí D carburetor 81 A nut that is used to install a wheel on a hub is called A cape nut B wheel nut C wing nut D locked nut 82 A part that is used for transmitting torque from the differential to the driving wheel is called A axle B Y yoke C drive line D hub 83 A part that is used for fixing brake shoes and wheel brake cylinder is called A back plate B brake drum C brake pad D spring 84 We can use to set firing order instead of timing belt A ring gear B pinion gear bánh điều phối C reverse gear D timing gears 85 An electronic component that picks up the signals for ECU is called A sensor B micro controller C actuator D transistor 86 How is a gasoline engine different from a diesel engine? A a gas engine releases more pollutants B a gas engine uses spark plugs for ignition C a gas engine needs more time to warm up D a gas engine has a smaller fuel injection pump 87 Which of the following is NOT a feature of a diesel engine? bền A air and fuel mix before entering the chamber B it is more durable than a gasoline engine C i doesn’t burn as clean a gasoline engine D gasoline cannot be used in it két nước 88 Which of the following does NOT cool a radiator? ống dẫn A fan B water pump C heater hose trục đăng phiên cải tiến dùng bi để điều chỉnh góc D coolant recovery system 89 Where does damage to a CV joint usually start? mòn nứt A a worn down hinge C a loose couping khớp nối lỏng B a cracked CV boot D a snapped transaxle 90 What is probably true of a car with a damaged CV boot? gãy A it needs a new U-joint B it has front-wheel drive C it cannot transmit rotary motion D its CV joint has completely failed B TRUE or FALSE: 10 One complete cycle in the 4-stroke SI engine requires two complete rotations of the crankshaft True T Clutch must engage or disengage the tranaxle / transmission without clutch pedal operation.hoạt động Clutch must engage the tranaxle/ transmission without clutch pedal operation F vi sai chuyển động quay The differential operates so that the rotation of the left and the right drive wheels are the same giống when the vehicle corners F thông thường In a conventional ignition system, contact points are used to turns the coil primary current on cuộn sơ cấp and off T tách rời In the two complete revolutions of the crankshaft that make up one cycle, there are four separate strokes of the piston from the top of the cylinder to the bottom or from the bottom to the top T Trục cắc đăng, trục dẫn động In the FR or 4WD vehicle, the propeller shaft transmits the power from the transaxle/ transmission to the differential T The diesel engine controls the output by changing the fuel injection pressure The sprung weight includes the weight of drive axles, axle shafts, wheels, and tires In a car, when the clutch pedal is pushed down, the power is tranmitted through the clutch to the drive wheels The suspension system allows the vehicle to travel over rough surfaces with a minimum of up and down wheel movement Water Pumps H DIESEL & PETROL ENGINE : Diesel engines use fuel as diesel oil, without spark plugs, engine generated by compressing the mixture of fuel and air in the cylinder Gasoline engines use gasoline as a fuel, which is produced by igniting the mixture of air fuel in the cylinder by sparking spark plugs ♦ Advantages: - Diesel engine performance is higher than gasoline engine (1.5 times) - Diesel is cheaper than gasoline - Specific fuel consumption of Diesel engines is lower than gasoline engines - Diesel does not ignite at room temperature, so it is less dangerous - Because there is no carburetor and ignition, the diesel engine is less likely to be damaged - Diesel engine is better overloaded than gasoline engine ♦ Disadvantages: - At the same capacity, a diesel engine has a heavier weight than a gasoline engine - Diesel engine compression ratio is higher, so it requires the engine parts of the engine to be good, resulting in more expensive production - The details of the fuel system in Diesel engine are very high accuracy (error of / 100mm) such as high pressure pump, injector, so the cost of manufacture and repair is higher - Repairing parts of the diesel engine fuel system must have specialized machines, expensive tools and highly qualified workers - Diesel engine speed is lower than gasoline engine speed - Diesel engines are noisier and "smelly" than gasoline engines (This has been overcome by many advanced technologies.) => Diesel engines and petrol engines have their own advantages and disadvantages However, the manufacturer has applied these two types of engines to the vehicle to suit the purpose of each separate vehicle To feel and love a smooth smooth car like a gasoline engine or as powerful and economical as a Diesel engine depends on the preferences and needs of each person Through this article, hope everyone will have more knowledge about these two types of engines and easier to choose for the purpose of their vehicles The end