9189 VB Phase 4 Gas Controls and Safety Regulations Quiz

What is the primary purpose of gas controls in gas appliances?

• To provide an easy means of operation

• To ensure the safe operation of gas equipment

• To increase the efficiency of gas usage

• To reduce the cost of gas appliances

According to the Gas Safety (Installation and Use) Regulations, what must be checked when installing a gas appliance?

• The efficiency of the appliance

• The cost of the appliance

• That all gas safety controls are in proper working order

• The brand of the appliance

What is the most basic form of gas control used to shut off the supply of gas at the meter?

• Gas regulator

• Gas valve

• Gas monitor

• Gas igniter

What is the purpose of the meter service governor (regulator) in gas controls?

• To shut off the gas supply

• To regulate the internal domestic pressure to the appliances

• To monitor oxygen depletion

• To provide safe ignition

Which of the following is NOT a purpose of the controls used on a gas system?

• A safe shut off in the event of an interruption in the gas supply

• Time, temperature, and pressure control

• Safe ignition

• Increasing the gas supply

What is the purpose of a flame supervision device?

• To increase the gas flow to the burner

• To prevent unlit gas from entering the combustion chamber

• To adjust the burner pressure

• To modulate the heating load

What does a multifunctional gas valve allow for?

• Adjustment of burner pressure and pilot

• Increase in water temperature

• Reduction of gas emissions

• Increase in electrical efficiency

How can the flame supervision device detect the absence of a flame?

• By increasing the gas flow

• By using heat from the flame

• By reducing the water pressure

• By adjusting the pilot light

What is the function of the pilot burner in a typical multifunctional gas valve?

• To ignite the main burner

• To control the gas pressure

• To adjust the fan speed

• To regulate the inlet pressure

Which component is responsible for adjusting the burner pressure in a Honeywell V4600T gas valve?

• Softlite Diaphragm

• Operator Valve

• Gas Control Button

• Thermocouple Connection