A major difference between the operation of an oil furnace and a gas furnace is that
A) the oil must be atomized before ignition
B) oil furnaces do not burn as hot as gas furnaces
C) it is more difficult to set up a gas furnace to burn cleanly
D) oil has a lower heat content value than gas
A
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Motors that are intended to operate on two voltages such as 240 or 480 volts contain two separate ____________________ of each phase.
Fill in the blank(s) with the appropriate word(s).
Technician A says heating a pressed-fit stud before installing it into the head makes installation easier. Technician B says stud-mounted rockers are oiled through hollow pushrods. Who is right?
A. Technician A B. Technician B C. Both technicians D. Neither technician
In what way is a wedge belt different from classic and FHP belts?
a. It has a wider cross-section per horsepower than the others. b. It has a narrower cross-section per horsepower than the others. c. It has more depth (thicker, not wider) than the others. d. It cannot be used with small-diameter sheaves.
All retroviruses produce an enzyme called reverse transcriptase, which permits them to insert copies of their own genetic material into that of the cells they have infected
Indicate whether the statement is true or false