a) Vs=\(\frac{Π}{4}\)∗d2l b) Vs=\(\frac{Π}{16}\)∗d2l c) Vs=\(\frac{Π}{32}\)∗d2l d) Vs=\(\frac{Π}{4}\)∗d3l Answer: a Explanation: Vs=\(\frac{Π}{4}\)∗d2l describes Swept volume or the ...
View QuestionA diesel tractor consumes 5 litres per hour of fuel whose density is 0.836 kg per litre. The heating value of the fuel is 45.4 MJkg^-1. If the thermal efficiency of the engine is 0.30, the transmission efficiency is 0.90 and the tractive efficiency is 0.75, the drawbar power of the tractor will be __________
A diesel tractor consumes 5 litres per hour of fuel whose density is 0.836 kg per litre. The ...
View QuestionWhich of the following stages is the last stage of the combustion process in diesel engine?
a) Period of rapid pressure rise and heat transmission b) Period of after burn c) Period of direct ...
View QuestionWhich of the following is not a feature of diesel engine?
a) Engine has compression ratio 14:1 to 22:1 b) The control by hand lever or pedal lever is ...
View QuestionWhich of the following is not a method of supplying fuel to the jet of the carburettor?
a) Suction method b) Throttle system c) Overflow method d) Float valve method Answer: b Explanation: ...
View QuestionWhat is the viscosity index for an oil having viscosity = 100s at 38°C? (L=137.9; H=107.1)
What is the viscosity index for an oil having viscosity = 100s at 38°C? (L=137.9; H=107.1) a) 132.38
View QuestionWhat is the quantity of water which is to be circulated through the radiator, if diesel tractor developed 80 KW with coolant temperature difference 5.5° C?
a) 9.44 L/s b) 10.01 L/s c) 7.44 L/s d) 8.44 L/s Answer: c Explanation: Q=A.V.Ma.Ca.∆ta Q=80*0.58*0.161
View QuestionCooling system of a 6.8 KW diesel engine at full load will remove heat at a rate of ________
a) 1.63 calories/min b) 6.80 calories/min c) 97.6 calories/min d) 408 calories/min Answer: c Explanation: \(\frac{6.3*10^3*60}{4.2} ...
View QuestionWhich is the third port, apart from exhaust and suction ports used in two-stroke engine?
a) Transfer port b) Transport valve c) Top dead centre d) Bottom dead centre Answer: a Explanation: ...
View QuestionThe minimum temperature required for a liquid fuel to form a spontaneously combustible mixture is known as ____________
a) Flash point b) Fluid coupling c) Differential d) Disc brake Answer: a Explanation: Petrol is a ...
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