)A six-cylinder diesel engine has the following performance details: 1) work done during expansion = 900kW. 2) work done during suction= 70 kW, 3) work losses due to friction=220 kW. If the brake mean effective pressure is 0.8 MPa. Detemine the bore and stroke of the engine taking the ratio bore to stroke equal to 1 and engine speed as 1200 rpm.

3. A 2-stroke, double-acting, 2L engine is run at speed of 4200 rpm. The volume displacement is, a 0.25 b 0.28 c 0.35 d 0.42

The Brake Specific Fuel Consumption of an Otto engine (typical of a gasoline engine) is 0.281 kg .mechanical efficiency is 91 %, Dkw hr compression ratio is 11.5, Higher Heating Value of the fuel is Determine the indicated kg fuel engine efficiency. 32.85 % 36.1 % 57.9 % 62.35 %

+. Page view 360° Exhaust 540° Intake 720° Compression 4. Why do multi-cylinder engines have smaller flywheels than single-cylinder engines? 5. What systems are commonly seen on an engine? What additional systems are needed to use an engine as a tractor? 6. Why does a cam shaft run at half the speed of the crankshaft? Illustrate. 7. How do you designate the size of an engine? 8. What will be the total piston displacement in a two-cylinder 100 mm x 130 mm engine? 9. If each cylinder of the above engine has a clearance volume equal to one fifth of the total cylinder volume, then compute: a) the clearance volume; b) the compression ratio. 10. Sketch the. operation of a four-stroke petrol engine, explaining the events at each stage. How will the events differ from those of a diesel engine? 11. Why is there a power stroke for every down stroke of piston'travel in a two-stroke engine? At what interval does the power stroke occur in a four-stroke engine? 12. Assuming a firing order of 1 3.- 4…

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Engine Type: Single cylinder Four stroke Diesel engine, Bore: 0.0875m, Stroke: 0.11m Capacity: 661.5 cc, Power: 6 H.P. at 1500 rpm, Torque: 2.96 kg.m at 1500 rpm and Compression Ratio :17.5:1 Explain how to measure the :- Fuel consumption. Inclined manometer readings for air flow. RPM, power output etc. (iv) Study of various components of diesel engine. (ii)

(7) A single-cylinder, four-stroke cycle CI engine with 12.9 cm bore and 18 cm stroke operating at 800 r.p.m. uses 0.113 kg of fuel in four minutes while developing a torque of 76 N.m. calculate :- (a) Brake specific consumption.hr (b) Brake mean effective pressure. (kpa) (c) Brake power. (kW) (d) specific power. kW (e) Output per displacement. (kW) L (f) Specific volume. L kW

Can you help with question1

5. Calculate the swept volume and mean effective pressure (MEP) of a 4-Cylinder, 2-stroke IC engine that has the following particulars: (Show the computation) Engine speed = 3000 rpm,            bore = 120 mm,                crank radius = 60 mm, Mechanical efficiency = 90% and the engine develops 75 bhp.

an engine burns a liter of fuel each 12 minytes, the fuel has specific gravity os 0.8 and heating value of 45 kj/kg. the engine has an efficiency of 25%. what is the brake morse power of the engine?