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In vapor compression cycle having dry saturated vapor at the end of compression the refrigeration effect is given by? H1 – Enthalpy of vapor before compression H4 – Enthalpy of vapor before entering evaporator H2 – Enthalpy of vapor after compression
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation.
In vapor compression cycle having dry saturated vapor at the end of compression the work done is given by? H2 – Enthalpy of vapor after compression H1 – Enthalpy of vapor before compression
Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the
What is the molal humidity of a gas with pressure of gas vapor 10 mm Hg and pressure of vapor free gas 20 mm Hg?
Statement 1: When there is an equilibrium between the vapor pressure and the percentage relative humidity, water activity is directly proportional to the percentage relative humidity. Statement 2: Even a water activity as high as 0.85 for food items is considered to be very dry for substances.
Which of the following are the functions of lubrication in a bearing unit ? 1. To protect the bearing components from corrosion. 2. To absorb heat from the bearing unit. 3. To carry heat away from the bearing unit. Select the correct answer using the code given below
Consider the following two statements regarding Bearing stiffeners provided at the location of a concentrated load: 1. Bearing stiffeners have to resist bearing and buckling loads. 2. Bearing area and the area resisting buckling load are the same. Which of the above statements is/are correct ?