A time delay oil valve
a) opens when the pump starts
b) opens once ignition is verified
c) opens on flame failure
d) is located on the return line
e) is upstream of the pressure regulating valve
Answer: B
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Power Engineering Chapter 91
- On a two fixed capacity nozzle system both burners are lit when the system is:
- The purpose of a cut off valve is to:
- The purpose of pressure relief valve on a constant capacity fuel supply is to:
- A modulating capacity mechanical atomizing oil burner is also called an?
- An air atomizing compressor is usually
- A relief valve is placed on the discharge of a fuel oil pump
- Oil burners can be divided into three classes:
- The reducing of oil into very small particles is termed
- An atomizing air compressor is usually:
- When using mechanical fuel oil atomization:
- The design capacity of a constant capacity mechanical atomizer is a function of:
- The pressure range for pressure-atomizing burners fired with light fuel oil is approximately:
- The compressed air used as atomizing air in the air atomizing oil burner is also called:
- The two basic varieties of mechanical atomizing oil burners are the:
- To prevent the possibility of a furnace explosion, it is important that the furnace is _____ before the igniter is energized and fuel is supplied to the burner nozzle(s).
- When a greater than normal amount of combustible mixture is ignited, the result may be:
- Intermediate and high fire burner nozzles have higher capacities than the primary burner nozzle:
- A multi-burner cluster has secondary and tertiary nozzles ignited by:
- Before being pumped to the burner, heavy oils are heated to approximately:
- To which of the following oil burners is the oil supplied under high pressure?
- An air atomizing burner utilizes an air pressure of approximately:
- Regulations require that the minimum distance between an oil-fired furnace and an indoor oil storage tank must be:
- A time delay oil valve:
- A modulating pressure atomizer has its return oil flow regulated by: