Applications Questions Set 4:
What type of control valve is used to operate the fuel injector?
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Which of the following factors determines the nozzle orifice area?
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Which component in an internal combustion (IC) engine drives the mechanical fuel pump?
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What type of expansion device is used in a window air conditioner?
Solution:
In a coil ignition system of internal combustion (IC) engines, the function of a distributor is
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Which cooling system is used for supersonic aircraft and rockets?
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Given two cycles coupled in series where the efficiency of the topping cycle is 35% and the efficiency of the bottoming cycle is 24%, calculate the overall efficiency of the combined cycle.
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The brake power of a diesel engine, keeping other parameters constant, can be increased by
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In a regenerative cycle, steam with an enthalpy of 3018 kJ/kg is expanded in a high-pressure turbine to a state where the saturated water enthalpy is 542 kJ/kg. The work required by the pump in the high-pressure zone is 4 kJ/kg, and in the low-pressure zone is 2 kJ/kg. Calculate the amount of heat transferred in the boiler.
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Dynamic mass balancing is crucial. They are so important that an increase in the mass of components can also be accepted. Let's understand the effect of unbalanced mass at the crankshaft.
Consider the following data for an engine in dynamic condition:
- Unbalanced mass at crankshaft = 100 grams
- RPM of crankshaft = 3000 RPM
- Radius of crankshaft = 0.25 m
What is the force generated due to this unbalanced mass, and what is the magnitude of this force?
Solution:
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