WorksheetsUnit 3 - Thermal Physics - Quiz No.2
Total questions: 10
Worksheet time: 10mins
How many methods are used to determine thermal conductivity?
1
2
3
4
Forbe's method is used to determine
absolute conductivity of metals
thermal conductivity of good conductors
thermal conductivity of bad conductors
none
The thermal conductivity of bad conductor is determined by
Searle's method
Lee's disc method
Radial Flow method
Both b and c
The experimental of Forbe's method consist of
one part
two parts
three parts
four parts
In Lee's disc method , In the first part of experiment, heat is radiated from
top, bottom and curved surface
Bottom and curved surface
Top surface
Curved surface
In Lee's disc method , In the second part of experiment, heat is radiated from
top surface
top, bottom and curved surface
bottom and curved surface
bottom surface
Resist the flow of heat to and from the body is called
thermal insulation
thermal conduction
thermal resistance
thermal radiation
Example for organic material is
Silk
Wool
sugarcane fiber
All the above
Heat exchanger means
transfer heat between two or more fluids at different temperature
transfer heat between two or more fluids at same temperature
transfer heat between two fluids at different temperature
transfer heat between two fluids at same temperature
Example of direct contact heat exchanger is
Cooling tower
Jet condenser
Feed heater
All
