50-100 TOP MOST AUTOMOBILE ENGINEERING Multiple Choice Questions and Answers for Competitive Exams - Preparation for GATE Exams Automobile Engineering Multiple Choice Questions.pdf

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50-100 TOP MOST AUTOMOBILE ENGINEERING Multiple Choice Questions and Answers for Co Exams – Preparation for GATE Exams 1. The radiator tubes are manufactured by using a. Cast iron tubes b. Aluminum tubes c. Brass tubes d .Steel tubes Ans: c 2. If we know the engine speed, bore, stroke, number of cylinders and m.e.p in the cylinders, we can calculate a. FHP b. IHP c. BHP Ans: b 3. Knowing the IHP and FHP of an engine, we can calculate a. Compression ratio b. rpm c. SAF d. BHP BHP Ans: d 4. Which one of the following is not a trade name of tractor in India a. Kirloskar b. Escort c. Standard d. HMT Ans: c 5. The ratio between the power output of an engine and the energy in the fuel burned to produce that power is called a. Volumetric efficiency b. Thermal efficiency e fficiency c. Mechanical efficiency Ans: b 6. The air volume in the cylinder with the piston at B.D.C divided by the clearance volume is called a. Compression ratio b. Piston displacement c. Cylinder ratio Ans: a 7. The power used in overcoming friction in the engine is called a. BHP b. IHP c. FHP Ans: c 8. The average pressure during the power stroke minus the average pressure during the intake, compression and exhaust strokes is called a. IHP b. Compression ratio http://en http://enginee gineeri ri nginterviewquestions.co nginterviewquestions.com/auto m/automobile-engine mobile-engineering-m ering-multiple-choice-questions-an ultiple-choice-questions-and-answers-ford-answers-for- competitive-exams- preparation-forpreparation-for- gate-exa… gate-exa… 1/7

7/23/2016 50-100 TOP MOST AUTOM OBILE ENGINEERING M ultiple Choice Questions and Answers for Competitive Exams - Preparation for GATE Exams…

c. BHP d. m.e.p Ans: d 9. IHP minus FHP equals a. BHP b. SAF HP c. m.e.p Ans: a 10. Engine torque is highest at a. High speed b. Low speed c. Intermediate speed Ans: c 11. BHP divided by IHP is a. Thermal efficiency b. Mechanical efficiency c. Volumetric efficiency Ans: b 12. The percentage of the energy in the petrol burnt in the engine which is actually utilized in propelling the car is as little as a. 25% b. 60% b. 35% d. 15% Ans: a 13. In the diesel engine, the compression ratio is as high as a. 10:1 b. 15:1 c. 5:1 Ans: b 14. The device for smoothing out the power impulses from the engine is called the a. Flywheel b. Camshaft c. Crankshaft d. Clutch Ans: a 15. The amount of air fuel mixture taken in by the engine on the suction stroke is a measure of the engine’s a. Compression ratio b. Volumetric efficiency c. Clearance volume Ans: b 16. The size of an engine cylinder is referred to in terms of its a. Diameter and bore b. Bore and length c. Bore and stroke Ans: c

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17. In an operating engine, the hottest part of the piston is the a. Head b. Ring grooves c. Skirt d. Pin bosses Ans: a 18. In normal operation the part of the exhaust valve that gets the hottest is a. Face b. Middle of Stem c. Centre of head d. Edge of margin Ans: c 19. The power developed inside the engine cylinder is called a. IHP b. FHP c. BHP Ans: a 20. The ratio of the cylinder volume at BDC and the clearance volume is called a. Clearance ratio b. Volumetric ratio c. Compression ratio Ans: c 21. As a rule when comparing the front and rear wheel cylinder pistons, it will be found that the pistons in the front wheel cylinders are a. The same size b. Larger in diameter c. Smaller in diameter Ans: b 22. Twisting and untwisting of the crankshaft is called a. Torsional vibration b. Power impulsion c. Torsional balance Ans: a 23. The rotating effect of the connecting rod on the connecting rod bearing produces a. Pressure load b. Inertia load c. Centrifugal load Ans: c 24. Important bearing characteristics include a. Embeddability, compression and fatigue b. Exbeddability, conformability and fatigue resistance Ans: b 25. In the engine there must be relative motion between the piston and the connecting rod a. Atmospheric pressure, inertia and torsional vibration b. Centrifugal force, inertia and combustion pressure c. Inertia, engine speed and centrifugal force Ans: b http://engineeri nginterviewquestions.com/automobile-engineering-multiple-choice-questions-and-answers-for- competitive-exams- preparation-for-gate-exa… 3/7


26. Two of the three connecting rod bearing loads that increase as engine speeds increase are a. Centrifugal and inertia loads b. Torsional and pressure loads c. Pressure and inertia loads d. Pressure and centrifugal loads Ans: a 27. When different forces act at angles on connecting rod bearing, the combining of these forces produces a a. Remaining force b. Canceling force c. Resultant force Ans: c 28. The active material in a charged negative plate is a. Lead sulphate b. Lead peroxide c. Lead metal d. Lead per chloride Ans: c 29. The tree general types of friction bearings are a. Journal, ball and roller b. Journal, guide and thrust c. Journal, shaft and thrust Ans: b 30. Petrol and Gasoline is called a hydrocarbon because it consists essentially of a. Carbon and Hydrogen b. Oxygen and Hydrogen c. Carbon and Oxygen Ans: a 31. Almost all bearing used in automotive engines are a. Guide bearings b. Friction bearings c. Antifriction bearings Ans: b 32. The brake shoes are curved to conform to the inner diameter of the a. Tyre b. Wheel c. Pedal d. Brake drum Ans: d 33. It is cheaper if we use gaskets of a. Rubber asbestos type b. Copper asbestos type c. Steel asbestos type Ans: a 34. With an increase in temperature the resistance of carbon is a. Unchanged b. Decreased c. Increased http://engineeri nginterviewquestions.com/automobile-engineering-multiple-choice-questions-and-answers-for- competitive-exams- preparation-for-gate-exa… 4/7


Ans: c 35. When petrol burns completely, two of the compounds that are formed are a. Carbon dioxide and water b. Water and oxygen c. Hydrocarbon and oxygen Ans: a 36. Due to heat of combustion, with increase in temperature the molecules a. Move slower b. Vaporize c. Move faster Ans: c 37. When air is heated, it a. Contracts and becomes heavier b. Expands and becomes heavier c. Expands and becomes lighter Ans: c 38. Changing position of an object against an opposing force is called a. Power b. Torque c. Energy d. Work Ans: d 39. A liquid that boils at a relatively high temperature is said to have a. A low viscosity b. A high viscosity c. A high volatility d. A low volatility Ans: d 40. The ease with which a liquid changes to a vapour is called its a. Vapourability b. Boiling point c. Viscosity d. Volatility Ans: d 41. The pump part that rotates and causes water circulation between the radiator and engine is called a. Impeller b. Fan c. Bypass Ans: a 42. The bearing having the least friction is the a. Sleeve bearing b. Antifriction bearing c. Friction bearing Ans: b 43. Conformability of an engine bearing is a. Ability of a bearing to withstand the wear and tear http://engineeri nginterviewquestions.com/automobile-engineering-multiple-choice-questions-and-answers-for- competitive-exams- preparation-for-gate-exa… 5/7


b. Resistivity to corrosion c. Ability of the bearing to adjust itself to variations in shaft alignment and journal shape d. Ability of a bearing to permit foreign particles to embed in it Ans: c 44. The most commonly used material for tyre tubes is a. Butyl b. Natural rubber c. Butane Ans: a 45. When the plates of battery cell are made larger in size, we get increased ………… a. Current b. Voltage c. Cell resistance Ans: a 46. When preparing electrolyte, it is important to remember that a. Acid and water should be poured together b. Water should be poured into acid c. Acid should be poured into water Ans: c 47. Aluminium alloy pistons are preferred because a. They are good absorbers of shock b. They are having less weight c. They have good water resistance d. They are very strong in tension Ans: b 48. The material used for the piston of modern passenger cars are a. Brass pistons b. Cast iron pistons c. Aluminiun alloy pistons d. Steel pistons Ans: c 49. Piston compression rings are manufactured by a. Aluminium b. Cast iron c. Steel d. Bronze Ans: b 50. Gudgeon pins or piston pins are made by a. Piston material itself b. Cork c. Cast iron d. Hardened and ground steel Ans: d Automobile Engineering MCQs Part 1 Automobile Engineering MCQs Part 3 Automobile Engineering MCQs Part 4 Automobile Engineering MCQs Part 5 http://engineeri nginterviewquestions.com/automobile-engineering-multiple-choice-questions-and-answers-for- competitive-exams- preparation-for-gate-exa… 6/7


Automobile Engineering MCQs Part 6 This entry was posted in Automobile Engineering Multiple Choice Questions and tagged Interview Questions and Answers pdf free Download -mcqs-objective type Engineering. Bookmark the perm

4 Responses to 50-100 TOP MOST AUTOMOBILE ENGINEERING Multiple Choice Questions and Answers for C Exams – Preparation for GATE Exams Akhilesh kumar says: May 28, 2016 at 8:44 am

this website is very nice its help in enhance my knowledge… thank you sir Reply

Dasari says: April 27, 20 16 a t 5:53 am

Sir your site is very nice. I what to same questions & answers for govt driver job purpose.plz Reply

Ragu says: January 27, 2016 at 1:06 pm

where is the link for downloading pdf Reply

engineer says: January 28, 2016 at 9:16 am

sorry Ragu…we don’t provide pdf.only read on my site… Reply

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50-100 TOP MOST AUTOMOBILE ENGINEERING Multiple Choice Questions and Answers for Competitive Exams - Preparation for GATE Exams Automobile Engineering Multiple Choice Questions.pdf

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