Tag: fundamentals of heat transfer

Questions Related to fundamentals of heat transfer

Substances which allow heat to pass through them are called:

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Conductors
Insulators
Moderators
None of these

A coin is dipped in the molten wax in a glass tube. When we heat the upper part of the glass tube, the wax around the coil will not melt because:

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Wax has a very high melting point
Wax is a good conductor of heat
Glass is a good conductor of heat
Wax or glass are bad conductors

Mercury is a good conductor of heat.State true or false.

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

True
False

The best conductor of heat is

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Silver
Bronze
Aluminium
Copper

When you pour hot tea suddenly on to a glass tumbler, it cracks. Because:

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Glass cannot resist heat
Glass expands unevenly around the place of contact with the tea
Tea has chemicals which react with glass tumblers.
The reason is yet to be discovered by the scientists.

Cups are not made of metals. The reason is:

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Metals are good conductors
Metals are bad conductors
Metals are expensive
None of the above

Select the odd one out w.r.t. conduction of heat (gold, copper, mercury, cork)

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

cork
gold
copper
mercury

Define insulator of heat.

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Substances through which heat can pass easily are called insulators of heat.
Substances through which heat cannot pass easily are called insulators of heat.
Substance which can easily freeze are called insulators of heat.
Substances which cannot freeze easily are called insulators of heat.

Select the odd one out w.r.t. conduction of heat (gold, silver, copper, asbestos)

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

asbestos
gold
silver
copper

State whether given statement is True or False
Iron is a better conductor of heat than copper

physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

True
False