An intermittent pilot:
a. Lights the main flame then extinguishes
b. Must be manually ignited
c. Lights the main flame and remains on until the main flame is extinguished
d. Remains on after the main flame extinguishes
e. Lights a pilot flame then extinguishes
Answer: C
Learn More :
Power Engineering Chapter 92
- Combination burners use:
- Premix Percentage is the another name for:
- 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
- To prevent a furnace puff, larger size solenoid type oil and gas valves usually have a delayed opening action so that it takes __ seconds to open the valve up wide, but they close instantly when de-energized.
- Diaphragm Gas Valve is popular as a control valve for?
- Which pilots are ignited electrically by means of electrodes?
- An ___ pilot is used to light off the main burner but does not burn throughout the burner "on" period.
- A ____ pilot burns at all times and has to be manually ignited.
- The __________ pilot is most often used on small boilers.
- One of the advantages of the refractory (gas) burner is the
- A refractory burner disadvantage is
- When an atmospheric gas fired burner is burning fuel properly:
- An atmospheric premix burner has air entering around the flame that is termed:
- Atmospheric burners are used for:
- Large capacity burners:
- The main function of a gas burner is:
- The Venturi tube in the atmospheric burner mixing head has a:
- An atmospheric burner head which is very popular on heating boilers is the:
- A solenoid type fuel valve;
- Which of the following is NOT a pilot for a gas burner?
- A very popular packaged boiler gas burner is the:
- Gas burners for heating boilers can be divided into two general classes:
- One of the advantages of using natural gas as a fuel in a boiler is:
- The amount of pre-mix air to an atmospheric burner is typically: