Heat transfer occurs by natural convection because change in temperature causes difference in__________________?

Related Mcqs:

An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a_________________?

A. Boiler B. Heat exchanger C. Recuperator D. Regenerator...

In case of _______________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface?

A. Nucleate B. Local C. Pool D. Saturated...

In a forward feed multiple effect evaporator unit__________________?

A. Viscosity of liquid is highest in first effect B. Transfer from effect to effect is done by pumps C. No pump is required to withdraw the product from the last effect D. None of these...

In Joule’s experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglecting the heat capacity of agitator, the temperature of water (in °C) is________________?

A. 40.5 B. 34.4 C. 26.8 D. 25...

In a forward feed multiple effect, the pressure build up will be____________________?

A. Least at the inlet of the first effect B. Least at the outlet of the last effect C. Highest at the inlet of the last effect D. Highest at the outlet of the last effect...