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Automobile engineering
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 ⇒ The ratio between the power output of an engine and the energy in the fuel burned to produce that power is called Thermal efficiency [other wrong options] [Discuss in forum] Volumetric efficiency Mechanical efficiency |
Q22 ⇒ The air volume in the cylinder with the piston at B.D.C divided by the clearance volume is called Compression ratio [other wrong options] [Discuss in forum] Piston displacement Cylinder ratio |
Q23 ⇒ The power used in overcoming friction in the engine is called FHP [other wrong options] [Discuss in forum] BHP IHP |
Q24 ⇒ IHP minus FHP equals BHP [other wrong options] [Discuss in forum] SAF HP m.e.p |
Q25 ⇒ Engine torque is highest at Intermediate speed [other wrong options] [Discuss in forum] High speed Low speed |
Q26 ⇒ BHP divided by IHP is Mechanical efficiency [other wrong options] [Discuss in forum] Thermal efficiency Volumetric efficiency |
Q27 ⇒ In the diesel engine, the compression ratio is as high as 15:1 [other wrong options] [Discuss in forum] 10:1 5:1 |
Q28 ⇒ The device for smoothing out the power impulses from the engine is called the Flywheel [other wrong options] [Discuss in forum] Camshaft Crankshaft Clutch |
Q29 ⇒ The amount of air fuel mixture taken in by the engine on the suction stroke is a measure of the engine's Volumetric efficiency [other wrong options] [Discuss in forum] Compression ratio Clearance volume |
Q30 ⇒ The size of an engine cylinder is referred to in terms of its Bore and stroke [other wrong options] [Discuss in forum] Diameter and bore Bore and length |
Q31 ⇒ In an operating engine, the hottest part of the piston is the Head [other wrong options] [Discuss in forum] Ring grooves Skirt Pin bosses |
Q32 ⇒ In normal operation the part of the exhaust valve that gets the hottest is Centre of head [other wrong options] [Discuss in forum] Face Middle of Stem Edge of margin |
Q33 ⇒ The power developed inside the engine cylinder is called IHP [other wrong options] [Discuss in forum] FHP BHP |
Q34 ⇒ The ratio of the cylinder volume at BDC and the clearance volume is called Compression ratio [other wrong options] [Discuss in forum] Clearance ratio Volumetric ratio |
Q35 ⇒ Twisting and untwisting of the crankshaft is called Torsional vibration [other wrong options] [Discuss in forum] Power impulsion Torsional balance |
Q36 ⇒ The rotating effect of the connecting rod on the connecting rod bearing produces Centrifugal load [other wrong options] [Discuss in forum] Pressure load Inertia load |
Q37 ⇒ In the engine there must be relative motion between the piston and the connecting rod Centrifugal force, inertia and combustion pressure [other wrong options] [Discuss in forum] Atmospheric pressure, inertia and torsional vibration Inertia, engine speed and centrifugal force |
Q38 ⇒ Two of the three connecting rod bearing loads that increase as engine speeds increase are Centrifugal and inertia loads [other wrong options] [Discuss in forum] Torsional and pressure loads Pressure and inertia loads Pressure and centrifugal loads |
Q39 ⇒ When different forces act at angles on connecting rod bearing, the combining of these forces produces a Resultant force [other wrong options] [Discuss in forum] Remaining force Canceling force |
Q40 ⇒ The active material in a charged negative plate is Lead metal [other wrong options] [Discuss in forum] Lead sulphate Lead peroxide Lead per chloride |
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