EES 102 w10d2 quiz

Using the diagram below of a pilot model water heater, letter "G" represents

• P.T Valve

• thermocouple

• pilot assembly

• temperature adjustment

In the pilot assembly displayed below, Letter D is which part?

• burner

• thermocouple holder

• air intake

• orifice

Excessive sooting at the water heater is NOT caused by

• improper burner alignment

• a blockage in the burner tube

• low propane pressure

• a leak in the inner tank

Where is the proper location on a pilot model water heater valve to test the propane pressure?

• at the main burner orifice

• at the gas control pressure tap

• at the pilot tubing

• at the gas control pilot adjustment

the function of the ECO is to

• control pressure

• control flame height

• protect from overheating

• turn switch on

When bench testing a thermostat from a DSI water heater using a multimeter, the measurement taken at ambient temperature should indicate

• 120VAC

• 26 ohms

• open contacts

• closed contacts

An electric water heater does not heat and 120 volts is measured at the element with zero amp draw. The problem is likely

• a faulty heating element

• low propane pressure

• a closed thermostat

• a defective ECO

An electric water heater fails to operate. This is usually an indication of

• improper AC voltage

• an open ECO

• undersized heating element

• low DC voltage

Which of the following is NOT a function of the circuit board on an on-demand water heater?

• sense flame from the electrode

• send spark to the electrode

• send voltage to the gas valve

• shut off voltage to the thermostat

A propane appliance works fine with the slide-out extended but fails to light with the slide-out retracted. the problem is likely

• the propane detector

• low gas pressure

• a kinked rubber gas line

• a faulty appliance