Wall-mounted underwater luminaires must be installed so that the top of the lens is at least how many inches below the water level?
a. 5
b. 8
c. 12
d. 18
d. 18
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Which of the following statements is LEAST-Likely true?
A. Friction occurs between the piston rings and cylinder walls. B. Low-tension piston rings were introduced in the mid-1980s to improve fuel economy. C. Compression rings account for about 60% of the total drag on a cylinder wall, and the oil ring accounts for 20%. D. Cast iron rings are used in re-ring jobs when the cylinder walls have not been re-bored.
These diagrams are drawn as a series of lines and symbols that represent the electrical current path and the components of the circuit, but they may not show the individual wires or connections of an electrical circuit. These diagrams, however, show the electrical relationship of components.
a. pictorial diagram b. schematic diagram c. one-line diagram d. wiring diagram
Technician A says that a voltage drop test of the charging circuit should only be performed when current is flowing through the circuit. Technician B says to connect the leads of a voltmeter to the positive and negative terminals of the battery to measure the voltage drop of the charging system. Who is right?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
There is a strong correlation between obesity and injuries.