If a furnace is found with a puddle of oil in the combustion chamber, _____
a. fire the burner for one or two seconds at a time
b. manually light the oil and allow it to burn away
c. turn on the main blower until it evaporates
d. pump out or soak up the excess oil from the chamber
d
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The term ____ is used to describe the shape of the finish ground.
A. grade B. slope C. gradient D. terminal
The Union's defeat in battle at Bull Run in 1861 was better than a victory because
A. Ulysses S. Grant took command of the army immediately after the setback. B. the defeat caused Northerners to face up to the reality of a long, difficult war. C. "Stonewall" Jackson was killed. D. it caused Lincoln to replace George B. McClellan as commander of the Army of the Potomac. E. it allowed European powers the chance to intervene on behalf of the South.
Todas las siguientes acciones ayudarán a reducir el riesgo de dermatitis ocasionada por el cemento, excepto _____.
a. bañarse después de cada turno b. usar anteojos o una más- cara c. usar jabón o loción a base de agua d. usar guantes y botas de caucho
The first mowing of a new turf planting should not occur until the new grass has reached what height?
a. 1.5 to 2 inches c. 3.5 to 4 inches b. 2.5 to 3 inches d. 4.5 to 5 inches