Technician A says by multiplying the number of teeth on one gear by the number of teeth on a second gear, a gear ratio can be determined. Technician B says the mathematical relationship, according to the number of teeth, of one gear to another is expressed as a gear ratio. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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Technician A says that a lead-acid battery should be load tested by applying a load of double the CCA rating of the battery. Technician B says that a battery with frozen electrolyte must be thawed before attempting to recharge the battery. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
A smartphone display has 1200 columns and 800 rows, spatial frequencies in a row less than ____ Hz/row will not produce aliasing.
Fill in the blank(s) with the appropriate word(s).
What is the most common measurement of light intensity used in the United States?
a. lux c. lumen b. footpound d. footcandle
Six batteries are tested with the following readings: 12.73 volts, 12.23 volts, 12.9 volts, 12.48 volts, 12.29 volts, and 12.16 volts. What is the average reading?
A. 12.455 B. 12.465 C. 12.475 D. 12.480