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Natural air cooling method can’t be adopted because of some unavoidable effects, beyond _______

Natural air cooling method can’t be adopted because of some unavoidable effects, beyond _______ Correct Answer 1.5 MVA

Smaller size transformers are immersed in a tank containing transformer oil. The transformer oil because temperature properties, which is surrounding the core and windings gets heated, expands and moves upwards. It then flows downwards by the inside of tank walls which cause it to drop temperature and oil goes down to the bottom of the tank from where it rises once again completing the circulation cycle.

Related Questions

Consider the following statements for cooling towers: 1. Cooling tower is an artificial device used to cool the hot cooling water coming out of condenser more effectively. 2. The amount of water usually lost with induced draft cooling tower ranges from 5% to 6% by evaporation. 3. The amount of water usually lost with induced draft cooling tower ranges from 7% to 8% by drift losses. 4. The rate of evaporation of water and its cooling effect on the remaining water depends upon the relative humidity of air passing through the tower. Which of the above statements are correct?
The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil)
The bypass factor, in case of sensible cooling of air, is given by (where td1 = Dry bulb temperature of air entering the cooling coil, td2 = Dry bulb temperature of air leaving the cooling coil and td3 = Dry bulb temperature of the cooling coil)
Consider the following statements for the appropriate context: 1. The Relative Humidity of air remains constant during sensible heating or cooling 2. The Dew Point Temperature of air remains constant during sensible heating or cooling 3. The total enthalpy of air remains constant during adiabatic cooling 4. It is necessary to cool the air below its Dew Point Temperature for dehumidifying Which of the above statements are correct?
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)
The sensible heat factor during cooling and dehumidification process is given by (where h1 = Enthalpy of air entering the cooling coil, h2 = Enthalpy of air leaving the cooling coil and hA = Enthalpy of air at the end of dehumidification process)
In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out ofthe four alternatives.
The conditions ______ which democracy can _______ are _______ to ________ ; but one thing is _______ that democracy is always a slow growth, whereasdictators may _____ to ______ and _______ a new _______ with dramatic success, under _______ conditions.
which democracy can _______
In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out ofthe four alternatives.
The conditions ______ which democracy can _______ are _______ to ________ ; but one thing is _______ that democracy is always a slow growth, whereasdictators may _____ to ______ and _______ a new _______ with dramatic success, under _______ conditions.
are _______ to
In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out ofthe four alternatives.
The conditions ______ which democracy can _______ are _______ to ________ ; but one thing is _______ that democracy is always a slow growth, whereasdictators may _____ to ______ and _______ a new _______ with dramatic success, under _______ conditions.
but one thing is _______ that democracy is always a slow growth,
In the following passage some of the words have been left out. Read the passage carefully and choose the correct answer for the given blank out ofthe four alternatives.
The conditions ______ which democracy can _______ are _______ to ________ ; but one thing is _______ that democracy is always a slow growth, whereasdictators may _____ to ______ and _______ a new _______ with dramatic success, under _______ conditions.
and _______ a new