Applications Questions Set 19:
What is the primary criterion to detect ammonia leaks?
Solution:
Which component in a carburetor is used to control the airflow?
Solution:
The boiling point of R-134a is _____.
Solution:
Which of the following is the correct relation between Velocity Coefficient (Cc) and Nozzle efficiency (ηn)?
Solution:
For an axial flow compressor, the formula for the blade loading coefficient (Ψ) is:
(W = Work done; Cf = Axial flow velocity; Cb = Blade velocity)
Solution:
What is the purpose of supercharging in an engine?
Solution:
Which of the following is NOT true about single-stage compression?
Solution:
Calculate the Coefficient of Performance (COP) of a simple evaporative air refrigeration system used for an airplane that has a refrigeration load (Q) of 25 TR. The power required for the refrigerating system (P) is 700 kW.
Solution:
A work of 15 kW is done on a heat pump at 250°C, which led to the absorption of 10 kW of heat from the surrounding. The heat pump delivers the heat to a room needed to keep warm at 300 K. Find the coefficient of performance (COP) of the heat pump.
Solution:
Consider the following data:
Pressure of Ambient Air = 100 kPa
Dry Bulb temperature of ambient air (t) = 30°C
Relative Humidity of ambient air (φ) = 60%
The Saturation pressure of water at the given Dry Bulb temperature is 4.24 kPa. Find the Specific Humidity of Air (in g/kg of dry air).
Solution:
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