Automobile Engineering MCQs with answers Page - 18

Here, you will find a collection of MCQ questions on Automobile Engineering. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Pick up the wrong statement

  • (A) Theoretically correct air fuel mixture for petrol engine is about 1.5 : 1
  • (B) Diesel engines are CI engines
  • (C) SI engines are quality governed engines
  • (D) High speed compression engines operate on dual combustion cycle

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Q. While starting a engine the starter pinion meshes with

  • (A) Gears in differential
  • (B) Engine flywheel ring gear
  • (C) Clutch
  • (D) Gears in gear box

A

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Q. The efficiency of mechanical brakes is usually

  • (A) 85 - 95 percent
  • (B) 60 - 70 percent
  • (C) 30 - 40 percent
  • (D) 99 percent

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Q. Engine dynamo is usually driven by

  • (A) V-belt drive
  • (B) Gear drive
  • (C) Chain drive
  • (D) P-I-V drive

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Q. In actual practice, the inlet value of a four stroke I.C. engine should open

  • (A) exactly at the start of suction stroke
  • (B) slightly after the start of suction stroke
  • (C) slightly before the start of the suction stroke
  • (D) none of the above

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Q. Gudgeon pins are made of

  • (A) White metal
  • (B) Hardened and ground steel
  • (C) Aluminium
  • (D) Cast iron

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Q. In a four stroke four cylinder petrol engine, the speed of distributor shaft is

  • (A) Half the engine speed
  • (B) Four times the engine speed
  • (C) Same as engine speed
  • (D) Double of engine speed

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Q. Instead of values, ports are used in case of

  • (A) Petrol engine
  • (B) Diesel engine
  • (C) Four-stroke I.C. engines
  • (D) Two-stroke I.C. engines

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Q. In triptane rating the non-knocking reference fuel is

  • (A) leaded 2,3,3 trimethyl butane
  • (B) isobutane, C4H10
  • (C) butadiene C4H6
  • (D) none of the above

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Q. Which type of pump is preferred for pumping lubricating oil in automobile

  • (A) Reciprocating type
  • (B) Centrifugal pump with impeller shrouded on one side only
  • (C) Open impeller type
  • (D) Gear pump

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