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For the following questions answer them individually
A heat engine is supplied heat at the rate of 1700 kJ/min and gives an output of 9 kW. Thermalefficiency and heat rejection in kW of heat engine is
When we have combinedfree and forced convection, Gr/Re$$^2$$ is
A refrigerator and heat pump operate between the same temperature limits. COP of refrigerator is 4, COP of heat pump would be
A carnot refrigerator requires 1.25 kW perton ofrefrigeration to maintain a temperature of 233 K.Its higher operating temperature of the cycle
The work input to air compressor is minimum if the compression law followed is
Operating pressures of the refrigerants at the evaporator in the ascending order for any application are
For vapour compression system using R717 the material of pipe is
Air at DBT of 308 K and DPTof 293 K passes through a cooling coil which is maintained at 298 K. The process would be
Room sensible heat loss is 30000kJ/min and room latent heat loss is 20000 kJ/min. Sensible heat factor is
Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
Day-wise Structured & Planned Preparation Guide
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