When an engine brake is actuated on a current truck diesel engine, what is the maximum fueling permitted?
A. no fuel
B. idle fuel
C. high idle fuel
D. rated speed fuel
Answer: A
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Sealed combustion oil furnaces use:
A) A separate bottled oxygen supply for cleaner combustion. B) Special sealed airtight barometric draft regulators. C) High static oil burners. D) No vent because the combustion chamber is sealed.
In one revolution of a wheel, a truck moves 9 feet. How many revolutions are required to move the truck 3 miles? (Hint: There are 5,280 feet in one mile.)
A. 1,560 B. 1,600 C. 1,660 D. 1,760
A fresh air intake is necessary to keep the indoor air from becoming ____.
A. too humid B. superheated C. oxygen starved and stagnant D. too dry
A mason should first brush all of the head joints _____ to remove excess mortar.
A. before the mortar is struck B. with a firm brush C. horizontally D. vertically