All radiations in a black body are
Select an option to see the answer and solution.
Mechanical Engineering · all questionsHeat And Mass Transfer
Heat And Mass Transfer
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
163
Questions
1/9
Page
Pick an option on a question to see the right answer and solution.
The heat is transferred by conduction, convection and radiation in
Select an option to see the answer and solution.
Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in
Select an option to see the answer and solution.
The radiation emitted by a black body is known as
Select an option to see the answer and solution.
The amount of heat flow through a body by conduction is
Select an option to see the answer and solution.
The emissive power of a body depends upon its
Select an option to see the answer and solution.
The amount of radiation mainly depends upon the
Select an option to see the answer and solution.
Film coefficient is defined as Inside diameter of tube
Select an option to see the answer and solution.
Thermal diffusivity is a
Select an option to see the answer and solution.
The most commonly used method for the design of duct size is the
Select an option to see the answer and solution.
The value of Prandtl number for air is about
Select an option to see the answer and solution.
A steam pipe is to be insulated by two insulating materials put over each other. For best results
Select an option to see the answer and solution.
Total heat is the heat required to
Select an option to see the answer and solution.
Sensible heat is the heat required to
Select an option to see the answer and solution.
When heat is transferred from one particle of hot body to another by actual motion of the heated particles, it is referred to as heat transfer by
Select an option to see the answer and solution.
When heat is transferred from hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by
Select an option to see the answer and solution.
The concept of overall coefficient of heat transfer is used in case of heat transfer by
Select an option to see the answer and solution.
When heat is transferred by molecular collision, it is referred to as heat transfer by
Select an option to see the answer and solution.
Stefan Boltzmann law is applicable for heat transfer by
Select an option to see the answer and solution.
A non-dimensional number generally associated with natural convection heat transfer is
Select an option to see the answer and solution.