What is the typical pressure setting for a relief valve at on a residential hot water boiler?
A) 12 psig B) 15 psig C) 160 psig D) 30 psig
D
Trades & Technology
You might also like to view...
The silicon-controlled rectifier (SCR) is often referred to as a PNPP junction.
Answer the following statement true (T) or false (F)
Trades & Technology
What is a unit of electric current?
A) Amp B) Ohm C) Volt D) Watt
Trades & Technology
Graph the following points: (-2, -2), (0, 0), (1, 1), (3, 3), (7, 7). Connect these points. What is the value of the angle formed in reference to the x-axis?
A. 15o B. 30o C. 45o D. 60o
Trades & Technology
A(n) __________-colored switch cover is used to identify an oil burner safety switch.
a. orange b. red c. blue d. yellow
Trades & Technology