To prevent corrosion, steel panel radiators should only be used in ____ systems.

a. open-loop
b. closed-loop
c. parallel
d. hydraulically calibrated


b. closed-loop

Trades & Technology

You might also like to view...

?Rigidized shell spray-up is a process used to create ____.   

A. ?car top carriers B. ?food containers C. ?thermos jugs D. ?building panels

Trades & Technology

The spacing of laterals in a subsurface drainage system is determined by the horizontal ____________________ of the soil

Fill in the blank(s) with correct word

Trades & Technology

We put together estimates all the time in our everyday lives, often with little or no calculating.

Answer the following statement true (T) or false (F)

Trades & Technology

Who is credited for the first thread standard?

What will be an ideal response?

Trades & Technology