Name key safety aspects of combustion appliances that should be checked on a planned maintenance service call
What will be an ideal response?
Combustion air, vent system integrity, CO levels in flue gas and around unit.
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A(n) ____________________ bar chart is used to show comparisons for multiple aspects or groups of items.
Fill in the blank(s) with the appropriate word(s).
Technician A say the inverter converts the voltage from 270 VDC to 14 VDC to recharge the auxiliary battery and to power 12-volt electrical components. Technician B says the convertor converts HV battery DC voltage into three-phase alternating current (AC) for MG1 and MG2. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
For a low-temperature refrigeration system with an evaporator saturation temperature of -40°F, why might R-502 be used instead of R-12?
What will be an ideal response?
_____ is a term for the current of air created by the variation in pressure resulting from differences in weight between the hot gases in the flue and the cooler air outside the chimney.
A. Rumford B. Heat source C. Motion D. Draft