31. The vibration damper on a crankshaft reduces the: A. Longitudinal vibrations B. Transverse vibrations C. Torsional vibrations D. All of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
32. Mean effective pressure at a given compression ratio is maximum when the air-fuel ratio is A. Higher than stoichiometric B. Lower than stoichiometric C. Equal to stoichiometric D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
33. The brake specific fuel consumption is expressed as the fuel consumed . . . . . . . . A. Per unit time B. Per hour per unit brake horsepower C. Per km distance covered D. Per hour per unit indicated horsepower Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
34. Compression ratio of a petrol engine is A. Higher than that of diesel engine B. Lower than that of diesel engine C. Equal to that of diesel engine D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
35. When two rubber blocks are inclined to each other to a 'V' mounting, the rubber will be loaded in . . . . . . . . A. Only compression force B. Both compression and shear forces C. Only shear force D. None of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
36. If the tractive effort of the vehicle at any point of time during motion is more than the resistance of vehicle, then the vehicle will be under A. Acceleration B. Deceleration C. Uniform speed D. None of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
37. Relative efficiency is the ratio of A. Brake Power to Indicated Power B. Mechanical efficiency to Thermal efficiency C. Actual thermal efficiency to Volumetric efficiency D. Actual thermal efficiency to Air-standard efficiency Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
38. For checking the performance of an automobile which of the following test is necessary? A. Laboratory testing B. Test bed C. Road testing D. All are correct Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
39. The ratio of mass of air (or mixture) retained to the mass of trapped cylinder charge is called as . . . . . . . . A. Trapping efficiency B. Scavenging efficiency C. Charging efficiency D. Volumetric efficiency Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
40. About how much percentage of heat energy equivalent is overcoming engine friction? A. 30% - 40% B. 20% - 30% C. 15% - 25% D. 5% - 10% Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
