Which of the following best defines particle density?
a. What soil would weigh if there were no pore space
b. The density of a soil’s solid particles only
c. Neither
d. Both
D
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Mechanically held relays and contactors are often used because _____.
a. they have fewer coils than electrically held devices b. they have more coils than electrically held devices c. they are quieter than electrically held devices d. they are more reliable than electrically held devices
Condensation on pipes occurs when a cold surface is exposed to _____.
a. warm, moist air b. cold, dry air c. warm, dry air d. cold, moist air
Hazardous materials include all of the following EXCEPT _________
A) Engine oil B) Water C) Brake cleaner D) Asbestos
The heavier the load on an operating motor, the greater the amount of slip.
Answer the following statement true (T) or false (F)