In some larger mines, a pony would be bred, born, and put to work without ever having seen the light of the sun.
Answer the following statement true (T) or false (F)
True
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The crankcase pressure regulating valve is _____.
a. used in systems with multiple evaporators that operate at different temperatures to control the evaporator temperatures b. used to control the maximum pressure at the compressor suction line in order to protect the compressor motor from overload c. used to control system capacity in addition to limiting evaporator temperature d. adjusted for the minimum pressure specified by the manufacturer
Susan planted 62 acres of peanuts following cotton the year before. The cotton needed 215-85-180 units of fertilizer per acre of which some is left over for the peanuts. She used 46-0-0 urea at $501.99 per ton, 18-46-0 DAP at $704.85 per ton, and 0-0-60 muriate of potash at $569.79 per ton. She planted the peanuts 8 inches apart in 36-inch rows. The seed germination was 88.5 percent. Susan used a four-row digger and an eight-row combine with a 36-inch row header to harvest her peanuts. Her digger broke down after digging 0.6 of the peanuts and was in the shop 7.5 days. The mechanic worked 28 hours at $75 per hour to repair the digger and replaced $2,075.60 worth of parts. Since she did not have the use of the digger, she lost 61/ /3 percent ofthe remaining crop because of late digging.
She expected a yield of 3,150 pounds per acre. a. What was the cost of the fertilizer? b. What was the population per acre? c. How many pounds of peanuts were lost because of the breakdown? d. What did the breakdown cost without counting the peanuts lost?
What provides a low resistance path for the current to flow when a short occurs so that no harm occurs to persons or equipment?
A. Ground B. Balanced bridge C. Series-parallel circuits D. Parallel resistors
Inductive reactance ____ with the increase in frequency.
A. increases B. decreases C. stays the same D. declines proportionally