The natural convection air cooled condensers are used in

A Domestic refrigerators
B Water coolers
C Room air conditioners
D All of these

Correct Answer: All of these

Natural convection air-cooled condensers find applications in various cooling systems. The correct option is All of these, which means that they are used in domestic refrigerators, water coolers, and room air conditioners.

Natural convection refers to the heat transfer process where the movement of fluid (air, in this case) is driven by density differences due to temperature variations. Air-cooled condensers utilize natural convection to dissipate heat from the refrigerant to the surrounding air.

Therefore, in the context of the question, natural convection air-cooled condensers are utilized in domestic refrigerators, water coolers, and room air conditioners.
Bissoy MCQ
#Mechanical Engineering #Heat And Mass Transfer

Related Questions

Most air cooled condensers are designed to operate with a temperature difference of
A 5°C
B 8°C
C 14°C
D 22°C
Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan
A With greater number of blades
B Of increased diameter
C Both A & B
D Neither A nor B
A non-dimensional number generally associated with natural convection heat transfer is
A Grashoff number
B Nusselt number
C Weber number
D Prandtl number
Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler
A Increases
B Decreases
C Remain unaffected
D First increases and then decreases
Natural convection is characterised by
A Grashhoff number
B Peclet number
C Reynolds number
D Prandtl number
In natural convection heat transfer, the correlating parameter is the
A Graetz number
B Eckert number
C Grashoff number
D Bond number
The rate of heat transfer from a vertical plate by natural convection depends upon the temperature differences (ΔT) between wall and outside bulk. The proportionality is given as
A $${\left( {\Delta {\text{T}}} \right)^{\frac{1}{4}}}$$
B $${\left( {\Delta {\text{T}}} \right)^{\frac{1}{2}}}$$
C $${\left( {\Delta {\text{T}}} \right)^{\frac{5}{4}}}$$
D $${\left( {\Delta {\text{T}}} \right)^{\frac{3}{4}}}$$
Heat transfer by natural convection is enhanced in system with
A High viscosity
B High co-efficient of thermal expansion
C Low temperature gradients
D Low density change with temperature
Heat transfer occurs by natural convection because change in temperature causes difference in
A Viscosity
B Density
C Thermal conductivity
D Heat capacity
Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the
A Existence of thermal boundary layer
B Temperature gradient produced due to density difference
C Buoyancy of the bubbles produced at active nucleation site
D None of these

Next steps