Contents

Heat is transferred through………………
a) Conduction              
b) Convection  
c) Radiation                 
d) All of these

d

The….is the SI system unit for measuring heat:
a) joule                        
b) centigrade
c) kelvin                      
d) all of these

a

Solids, liquids and gases are expand on heating is called……….
a) thermal expansion   
b) thermal contraction
c) both a and b             
d) none of these

a

On heating solids: NTS PST 24/11/2019 (11:30)
a) Expand 
b) Condense    
c) shrink 
d) conceal

a

Thermal expansion is not involved in…………
a) metal tyres over the wheels
b) automatic fire alarm 
c) thermostat               
d) wooden stick

d

Solids, liquids and gases are expanding on heat and after cooling they contract is called
a) thermal expansion    
b) thermal contraction
c) both a and b             
d) none of these

b