The current ratings for ____________________ phase AC motors are given in Table 430.248.
Fill in the blank(s) with the appropriate word(s).
single
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Ms. Smith has 95 acres of peanuts with a yield of 3,100 pounds per acre. Her digger broke down after digging 3/4 of the crop and was in the shop for 7.5 days. The mechanics worked 20 hours on the digger at $81 per hour and replaced $3,103.45 worth of parts. Because she did not have the use of the digger, she lost 52/5 percent of the remaining crop.
a. How many tons were harvested before the breakdown?
b. What was the cost of the repair?
c. How many pounds of peanuts were lost because of the breakdown?
Answer the following statement(s) true (T) or false (F)
1. Rather than making a grounding connection in each service disconnecting means for services that are double-ended, it is permitted to make a single grounding electrode connection at the tie point for the services. 2. The purpose behind permitting the grounding electrode connection to be made at the equipment grounding conductor terminal bar of the service rather than to the neutral is to provide a convenient connection point sometimes outside the service disconnecting means enclosure. 3. Because separately derived systems are not a service, it is generally permitted to ground the neutral at multiple locations on the load side of the separately derived system. 4. Since the title of 250.52 is “Electrodes Permitted for Grounding,” the connection of these grounding electrodes is optional.
Typical? journal-to-bearing clearance is _______
A) 0.020 to 0.035 inch B) 0.00015 to 0.00018 inch C) 0.0005 to 0.0025 inch D) 0.150 to 0.250 inch
____________________ gives detail requirements on how to work safely around electricity.
A. NFPA 70 B. NFPA 70E C. OSHA D. NIOSH