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Some important examples
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ Vibration damper .......... controls the torsional vibrations [other wrong options] [Discuss in forum] drives the pulley dampens the engine speed reduces the speed of the flywheel |
Q22 ⇒ In a six cylinder engine there is balance of Both primary and secondary forces [other wrong options] [Discuss in forum] Primary forces only Secondary forces only |
Q23 ⇒ If the connecting rod longer, the side thrust of the piston is Decreased [other wrong options] [Discuss in forum] Increased Constant |
Q24 ⇒ In general the design of the current regulator is such that its main actuating winding carries full Generator output [other wrong options] [Discuss in forum] Generator voltage Field current Battery voltage |
Q25 ⇒ Immediately after ignition, combustion chamber temperatures may reach a value of 15000C [other wrong options] [Discuss in forum] 55000C 25000C 75000C |
Q26 ⇒ The compression ratio in a diesel engine is as high as 20:1 [other wrong options] [Discuss in forum] 25:1 10:1 5:1 |
Q27 ⇒ The temperature of the compressed air should be .............. of the fuel Above the fire point [other wrong options] [Discuss in forum] Below the flash point Above the flash point Between the fire and flash point |
Q28 ⇒ The compression pressure in diesel engine is around 30 Kg/cm2 [other wrong options] [Discuss in forum] 10 Kg/cm2 20 Kg/cm2 40 Kg/cm2 |
Q29 ⇒ The combustion process in a diesel engine is Constant pressure process [other wrong options] [Discuss in forum] Isothermal process Constant volume process Adiabatic process |
Q30 ⇒ Which type of valve arrangements require the use of rocket arms? I - head [other wrong options] [Discuss in forum] H - head T - head L - head |
Q31 ⇒ The conventional mechanical type fuel pump develops ............. pressure 1.0 Kg/cm2 [other wrong options] [Discuss in forum] 0.15 Kg/cm2 0.5 Kg/cm2 0.3 Kg/cm2 |
Q32 ⇒ As compression ratio in an engine goes up, the octane requirements of the fuel Goes up [other wrong options] [Discuss in forum] Goes down Stay about the same |
Q33 ⇒ The metering rod is designed to vary the size of which jets High speed jets [other wrong options] [Discuss in forum] Accelerating jets Float level jets Idle jets |
Q34 ⇒ The turbulence in diesel engines ensures to Bring the fuel quickly in contact with the air [other wrong options] [Discuss in forum] Increase the volumetric efficiency Increase the compression ratio Increase the specific fuel consumption |
Q35 ⇒ If compression ratio is increased Air standard efficiency will be increased [other wrong options] [Discuss in forum] Thermal efficiency will be increased Volumetric efficiency will be increased Air standard efficiency will be decreased |
Q36 ⇒ In 'V' type engines the included angle between two banks of cylinders is 900 [other wrong options] [Discuss in forum] 450 600 1300 |
Q37 ⇒ The range of gear ratios in a vehicle depends on Max. engine torque / wt. of vehicle [other wrong options] [Discuss in forum] The ratio of engine h.p to laden weight of vehicle Only on the laden weight of vehicle The power to weight ratio of engine |
Q38 ⇒ Which motor cycle has maximum power rating Yamaha [other wrong options] [Discuss in forum] Rajdoot Jawa Bullet |
Q39 ⇒ mphr 1g [other wrong options] [Discuss in forum] 100g 1000g 10g |
Q40 ⇒ Piston displacement is calculated from the Bore and stroke [other wrong options] [Discuss in forum] Cylinder diameter and length Piston length and diameter |
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