What is a dual-fuel heat pump?
A) A heat pump that can operate on either natural gas or propane
B) A heat pump with a fossil fuel furnace instead of heat strips for the auxiliary heat
C) A heat pump that can operate on either alternating current or direct current
D) A heat pump that can operate on either natural gas or oil
B
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The prefix ____________________ indicates a filler metal that is supplied for use as either a current-carrying electrode or in rod forms.
Fill in the blank(s) with the appropriate word(s).
Which system prevents gasoline vapors from venting into the atmosphere?
A) EGR B) HO2S C) PCV D) EVAP
Technician A says that a good relay should measure between 60 and 100 ohms across the coil terminals Technician B says that OL should be displayed on an ohmmeter when touching terminals 30 and 87. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
According to the text, which of the following sources is not listed as a service utility?
A) Power B) Energy C) Fuel D) Water