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Automobile Engineering

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Automobile Engineering

shape Introduction

What is Automobile Engineering? Automobile Engineering, also known as Automotive Engineering, is a discipline of engineering which specializes in manufacturing, designing and operating automobiles. Automobile engineering, along with aerospace engineering and naval architecture, is a branch of vehicle engineering, incorporating elements of mechanical, electrical, electronic, software, and safety engineering as applied to the design, manufacture and operation of motorcycles, automobiles, and trucks and their respective engineering subsystems.
Automobile Engineering, a part of Mechanical Engineering, has gained momentum due to the rapid growth of auto component manufacturers and automobile industries, thereby encouraging a great demand for Automobile Engineers. For proficiency in automobile engineering, specialized training is essential and it is a profession, that demands precision, hard work, dedication, determination and commitment. The essential duties of an Automobile Engineer include designing, developing, manufacturing and testing of vehicles from the concept stage to the production stage

shape Quiz

Q1. The condition that causes vapour locking in a brake system is
    A. overheating of the fluid due to frequent brake application B. over cooling of the brakes during high speed driving C. keeping the vehicle without use for an extended period D. an excessively high engine speed on a downhill road Answer: A

Q2. The motion of the cam is transferred to the valves through
    A. pistons B. rocker arms C. camshaft pulley D. valve stems Answer: B

Q3. Which of the following symptom is caused as a result of brake disc run out
    A. Ineffectiveness of the brakes B. Judder during braking C. Localized wearing of the brake pads D. Rapid wearing of the brake pads Answer: B

Q4. If the engine coolant leaks into the engine oil, then engine oil
    A. appears milky B. becomes foamy C. turns black D. none of these Answer: A

Q5. The function of an alternator in an automobile is to
    A. supply electric power B. convert mechanical energy into electrical energy C. continually recharge the battery D. partly convert engine power into electric power Answer: C

Q6. A clutch is usually designed to transmit maximum torque which is
    A. equal to the maximum engine torque B. 80 per cent of the maximum engine torque C. 150 per cent of the maximum engine torque D. none of these Answer: C

Q7. What type of bearing is used for main bearings and connecting rod bearings
    A. Ballbearings B. Plain bearings C. Needle roller bearing D. Taper roller bearing Answer: B

Q8. It is necessary to maintain the valve clearances as they
    A. reduce the resistance to sliding that occurs between the cam and the tappet B. allow for lengthening of the valves owing to the heat of combustion C. increase the speed at which the valves move up and down D. make the crankshaft turn smoothly Answer: B

Q9. The oil pump is driven by the
    A. camshaft B. alternator shaft C. crankshaft via drive belt D. crankshaft directly Answer: D

Q10. The vehicle ride will be comfortable if
    A. unsprung mass is kept minimum B. sprang mass is kept minimum C. vehicle mass is kept minimum D. all of these Answer: A
Q11. The main function of intake manifold is that it
    A. promotes the mixture of air and fuel B. reduces intake noise C. cools the intake air to a suitable temperature D. distributes intake air equally to the cylinders Answer: D

Q12. The transmission system transmits from engine to wheels.
    A. Speed B. Power C. Current D. Pressure Answer: B

Q13. Which of the following is not a part of the transmission system
    A. Clutch B. Axles C. Wheels D. Gear box Answer: C

Q14. The loads supported by an automobile frame are
    A. Weight of the body, passengers and cargo loads B. Torque from engine and transmission C. Sudden impacts from collisions D. All of the mentioned Answer: D

Q15. An automobile chassis does not include which one of the following parts
    A. Shock absorbers B. Steering system C. Differential D. Brakes Answer: C

Q16. The electrical system of an automobile contains which of the following
    A. Battery B. Alternators C. Lighting systems D. All of the mentioned Answer: D

Q17. Which of these were or are used in automobiles to provide suspension.
    A. Leaf springs B. Coil springs C. Torsion bars D. All of the mentioned Answer: D

Q18. What are ‘Air Dams’
    A. Spoilers at the front of a vehicle B. Spoilers at the rear of a vehicle C. Spoilers at the sides of a vehicle D. Spoilers at the top of a vehicle Answer: A

Q19. What are ‘Wings’ of a vehicle
    A. Spoilers at the front of a vehicle B. Spoilers at the rear of a vehicle C. Spoilers at the sides of a vehicle D. Spoilers at the top of a vehicle Answer: B

Q20. The lid that covers the engine top in a car and situated at the front is called
    A. Gill B. Softtop C. Bonnet D. Spoiler Answer: C
Q21. An upraised part on the hood which directs the air flow into the engine compartment is called
    A. Spoiler B. Hotpipe C. Hood scoop D. Wings Answer: C

Q22. Why ‘Bumpers’ are used in cars
    A. To reduce the impact in case of low speed collisions B. To improve the aerodynamics of a car C.To increase the engine performance D. None of the mentioned Answer: A

Q23. The central portion of the wheel is called
    A. Rim B. Scale C. Hub D. Axle Answer: C

Q24. A _____ is a horizontal surface at the back of a car and serves as a lid to the trunk.
    A. Trunktop B. Deck C. Hood D. Backlight Answer: B

Q25. A ‘bucket seat’ can accomodate how many persons
    A. One B. Two C. Four D. None of the mentioned Answer: A

Q26. ‘Head restraints’ are an
    A. Automotive style feature B. Automotive safety feature C. Automotive performance feature D. None of the mentioned Answer: B

Q27. Which of these is not necessary for the description of an automobile
    A. Type B. Capacity C. Colour D. Model Answer: C

Q28. Which of these is necessary for the description of an automobile
    A. Make B. Model C. Capacity D. All of the mentioned Answer: D

Q29. ‘Volkswagen Polo’ is a
    A. Ultra-compact car B. Sub-compact car C. Compact car D. Executive car Answer: B

Q30. ‘Maruti 800’ is a
    A. Sub-compact car B. Compact car C. City car D. Sports car Answer: C
Q31. Which of these cars is a Crossover SUV.
    A. Nissan Pathfinder B. Hyundai Sonata C. Suzuki Servo D. Fiat Panda Answer: A

Q32. What was the initial pricetag of ‘Tata Nano’ a city car by Tata Motors
    A. Rs.1,50,000 B. Rs.1,00,000 C. Rs.2,50,000 D. Rs.2,00,000 Answer: B

Q33. Which of these is a compact executive car
    A. Mercedes-Benz S Class B. Audi A8 C. Audi A4 D. Mercedes-Benz E Class Answer: C

Q34. Which of these is a ‘Convertible’.
    A. Mahindra Scorpio B. Volkswagen Golf GTI C. Cadillac XTS D. Honda S2000 Answer: D

Q35. A Roadster is a convertible with how many seats
    A. One B. Two C. Four D. Six Answer: B

Q36. Mercedes-Benz E Class is
    A. A compact minivan B. An estate car C. An executive car D. A compact executive car Answer: C

Q37. Ford Falcon is an example of
    A. Australian muscle car B. American muscle car C. Luxury vehicle D. None of the mentioned Answer: A

Q38. What is actual power delivered by the engine known as?
    A. Shaft power B. Horse power C. Brake power D. None of the mentioned Answer: C

Q39. If ‘T’ is torque(in Nm) and ‘N’ is speed(in rpm) then the required expression for Brake power ‘B.P’ in kWs is
    A. 2πNT/6000 B. 2πNT/60000 C. πNT/6000 D. πNT/60000 Answer: B

Q40. The torque available at the contact between road and driving wheel is called
    A. Brake power B. Friction power C. Tractive effort D. Engine torque Answer: C
Q41. If ‘V’ is vehicle speed(in metres/min) and ‘R’ is radius of driving wheel(in metres) then the rpm of the driving wheel is given by
    A. rpm = V/2πR B. rpm = 2πV/R C. rpm = πR/V D. rpm = πV/R Answer: A

Q42. Which of these is not a power loss which takes place between engine and driving wheel
    A. Power loss due to friction of piston bearings and gears B. Power loss from clutch to drive wheel due to friction of various parts C. Transmission line loss D. None of the mentioned Answer: D

Q43. The force that opposes the motion of a vehicle is
    A. Rolling resistance B. Gradient resistance C. Wind or air resistance D. All of the mentioned Answer: D

Q44. Rolling resistance does not depend on which of the following factors
    A. Load on each road wheel B. Radius of driving wheel C. Wheel inflation pressure D. Nature of road surface Answer: B

Q45. For an average type of road surface what percentage of vehicle’s weight constitutes rolling resistance
    A. 5 to 10% B. 1 to 2% C. 2 to 5% D. 0 to 3% Answer: B

Q46. Wind or air resistance depends on which of the following factors
    A. Shape and size of vehicle body B. Air velocity C. Speed of vehicle D. All of the mentioned Answer: D

Q47. If ‘k’ is coefficient of air resistance, ‘A’ is frontal area projected by the vehicle in square metres and ‘V’ is vehicle speed(in km/h) then the expession for air resistance ‘A.R’ on the vehicle is
    A. A.R = k*A*V^2 B. A.R = k*A*V^3 C. A.R = 2k*A*V D. A.R = k*A*V Answer: A

Q48. The value of coefficient of air resistance for average cars is approximately equal to
    A. 0.32 B. 0.032 C. 0.0032 D. 1.32 Answer: C

Q49. One Horse Power(H.P) is approximately equal to Watts.
    A. 810 B. 545 C. 634 D. 746 Answer: B

Q50. Gradient resistance for a vehicle depends on which of the following factors
    A. Weight of the vehicle B. Size of the vehicle C. Width of tyres D. Speed of the vehicle Answer: A
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