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Which of the following statements is true about the indicator diagram of adiabatic and isothermal processes? (a) The slope of isothermal is more than that of adiabatic. (b) The slope of adiabatic is more than that of isothermal. (c) Both are parallel curves. (d) Data is insufficient. | Numerade
10 个月之前
numerade.com
The relation gives the mean effective pressure of an engine determined by indicator diagram. (a) (A ×L)/(S) (b) (A ×S)/(L) where A= Area of indicator diagram, S= Spring constant L= Length of indicator diagram. | Numerade
1 个月前
numerade.com
A 4-cylinder, 4-stroke SI engine having a displacement of one liter and a compression ratio of 5.7 produces a brake power of 13 kW at 2600 rpm . The engine inducts air at 101.3 kPa and 298^∘ K while burning isooctane at the rate of 5 kg / h. During a friction test on a dynamometer, the torque to overcome friction was 11.2 N-m at 2600 rpm . Assuming stoichiometric burning, determine the brake mean effective pressure, the brake fuelconversion efficiency, the volumetric efficiency and the mechani
1 个月前
numerade.com
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The Hero Xoom110 features an air-cooled, 4-stroke, SI engine with a displacement of 110.9cc. It delivers a maximum power of 6.0kW (8.05 bhp) at 7250 rpm and a maximum torque of 8.70 Nm at 5750 rpm. The engine has a bore and stroke of 50.0 x 56.5 mm and a compression ratio of 10:1. It uses a fuel injection (FI) system and is managed by an electronic control unit (ECU) for ignition. Priced at 69,900 pesos, the Hero Xoom110 offers a balance of performance and affordability. For inquiries Contact us
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Water in a pond appears to be only three – quarters of its actual depth. a. What property of light is responsible for this observation? Illustrate your answer with the help of a ray diagram. - Physics | Shaalaa.com
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A four-cylinder, 2.5 -liter, four-stroke cycle SI engine with a compression ratio n=9.6 operates at 3200 RPM. Peak cycle temperature is 2227^∘ C, peak cycle pressure is 6800 kPa , and exhaust pressure is 101 kPa . The engine operates at part throttle with inlet air at 60^∘ C and 75 kPa . An exhaust residual remains in the cylinders at the end of the exhaust stroke. In addition, 12 % EGR at exhaust temperature and pressure is diverted back into the intake manifold, where it mixes with the inlet a
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A four-stroke SI engine delivers a brake power of 441.6 kW with a mechanical efficiency of 85 percent. The measured fuel consumption is 160 kg of fuel in one hour and air consumption is 410 kg during one-sixth of an hour. The heating value of the fuel is 42000 kJ/kg. Calculate i) indicated power, ii) frictional power, iii) air-fuel ratio, iv) indicated thermal efficiency, and v) brake thermal efficiency.
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