What are the two methods of electrical interlocking?
What will be an ideal response?
Two methods of electrical interlocking are available. One method is accomplished with the use of double-acting push buttons. The second method of electrical interlocking is accomplished by connecting the normally closed auxiliary contacts on one contactor in series with the coil of the other contactor.
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There is a special sale on engine oil. If you purchase more than one 12-quart case, you will receive a 5 percent discount. If you purchase six or more cases, you will receive a 10 percent discount. You have two vehicles that require an oil change every 4,000 miles. Vehicle #1 requires four quarts per oil change plus one additional quart when you also change the oil filter. Vehicle #2 requires five quarts per change plus one quart whenever the filter is changed. Each year your family drives vehicle #1 about 16,000 miles and vehicle #2 about 24,000 miles. You change the oil filter every other time the oil is changed. The normal price for oil is $22.49 per case. Oil filters cost $4.39 each. How many total quarts will be used by both vehicles in one year?
Fill in the blank(s) with the appropriate word(s).
A air conditioning technician need to understand reduced scales.
Answer the following statement true (T) or false (F)
An area that must be inspected before work activities proceed is a _____
A) root gap B) hold point C) root pass D) mismatch
Perform the operations indicated and round to three places: 156.45 x 10.62 x 0.21 =
Fill in the blank(s) with the appropriate word(s).