The application of electric space heaters is generally more ...

[cookcarl]

The application of electric space heaters is generally more flexible than space heaters that rely on combustion because:
 
  A) They can be located anywhere in the room with a long extension cord.
  B) They do not require any combustion air and do not require venting.
  C) They can be operated on batteries.
  D) No clearance to combustible materials is required; they have no flames.

Question 2

Glycol solutions are added to water in secondary refrigerant loops:
 
  A) To lubricate the circulating pump bearings. B) To increase the system heat transfer.
  C) To make leaks easier to locate. D) To prevent freezing and inhibit corrosion.

[srodz]

Answer to Question 1

B

Answer to Question 2

D

[cookcarl]

Thanks

[srodz]

Welcome