Transfer Of Heat And Effects Of Heat

Question 1

Conduction only happens in solids
True or false

Answer 1

False

Question 2

Radiation, with respect to heat transfer, is the transmission of heat energy through space by means of electromagnetic infared rays.

True of false

Answer 2

True

Question 3

Radiation heat can travel through transparent solids and liquids.

True or false

Answer 3

True

Question 4

Dark rough surfaces are excellent reflectors of radiant heat

True or false

Answer 4

False

Question 5

Convection is the transfer of heat within solids liquids or gasses?

Answer 5

Solids and liquids

Question 6

In a hot water tank why is the hottest water at the top of the tank?

Answer 6

Hot water is less dense than cold water

Question 7

Water is most dense at what temperature ?

Answer 7

4 Celsius

Question 8

As water is heated to steam it expands by how much?

Answer 8

1700 times

Question 9

Around how much will water expand when heated from 4c to 100 c

Answer 9

5%

Question 10

If latent heat is removed from the m water turning it into ice how much will it expand by?

Answer 10

7.5%

Question 11

Name 3 methods of controlling expansion and contraction in pipe

Answer 11

Expansion joint
Expansion loop
Swing Joint