An electrical circuit using 12 volts and 5 amps of current would have a resistance of:
A. 2.4 ohms
B. .2 ohms
C. 1 ohm
D. 12 ohms
Answer: A
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Jack Jones went into a sow/pig operation. Hebuilt a building 40 feet wide and 100 feet long. The rafters for the roof are made from 2X6s placed on a 24-inch center with a 1:5 slope.
a. How many square feet are in the building? b. How high is the roof to the ridge cap? c. What angle does the roof make with the horizontal? d. What length 2X6s was purchased for the rafters? (Note: 2X6s are sold in even-number lengths.) e. How many board feet (1 foot by 1 foot by 1inch or less) are in the rafters?
The three-dimensional counterpart of shape is called ____.
A. line B. shape C. value D. form
On the Brinell tester, how much load should be used for testing steel?
A) 10 kg. B) 3000 kg. C) 500 kg. D) 150 kg.
The process that prevents defects such as rock or stone pockets and entrapped air voids from occurring in concrete is called _____.