What are the characteristics of engine oil with a high viscosity index?
A. Loses viscosity more quickly as temperatures rise.
B. Maintains better viscosity as temperatures rise.
C. Tends to thicken as temperature rises.
D. Tends to thin as temperature drops.
Answer: B
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Electric current that regularly reverses direction is called:
A) Alternating current. B) Direct current. C) Ellipsoidal current. D) Potential current.
Which of the following can be used as directional control valves?
A. check B. pilot C. spool D. all of the above
In an ideal parallel resonant circuit, the total current into the L and C branches is ________
A) zero B) maximum C) high D) low
The home lighting chart should include every fixture, its location, the number of light bulbs or tubes it contains, and the ____________________ of each one.
Fill in the blank(s) with the appropriate word(s).