Which features do Motorized Gas Valves have?
1. Slow to open, quick to close
2. Quick to open, slow to close
3. Fail-safe
4. Spring and supply pressure to close
5. Spring and supply pressure to open
a. 1, 4
b. 1, 3, 4
c. 2, 3, 4
d. 2, 5
e. 1, 3, 5
Answer: B