In the operation of the 555 timer, the trigger, pin #____, must be connected to a voltage less than one-third of Vcc to trigger the unit.
a. 2
b. 3
c. 4
d. 5
a. 2
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When a multi-orifice injector nozzle is closed, what seals the nozzle assembly from the engine cylinder?
A. nozzle sac B. nozzle shank C. nozzle line nut D. nozzle valve seat
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The most important tool for supervising a high-force cable pull is _____.
a. a crane to lift cable reels b. a sufficient amount of cable c. the correct cable lubricant d. working communications equipment
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Which of the following states produces the largest percentage of the United States' catfish?
A) Mississippi B) Florida C) North Carolina D) Texas
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Synthetic fertilizers are used to provide organic matter to the soil
Indicate whether the statement is true or false
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