Entry of any contaminant into the potable water system is called
A. backwater
B. backflow
C. siphonage
D. back pressure
Answer: B
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Technician A says that the stoichiometric ratio for gasoline is about 9.0:1. Technician B says that the stoichiometric ratio for ethanol is about 9.0:1. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The function key on a scientific calculator that will change a fraction to a decimal is:
A. ab/c B. d/c C. FÛD D. Dec
If you measure the voltage across a diode and it measures 0.3 V, the diode is probably made of ________ and is ________ biased
A) silicon, forward B) germanium, reverse C) silicon, reverse D) germanium, forward
Which three components are necessary in order to have an electrical circuit?
A. power source, path, load B. path, load, switch C. switch, power source, load D. power source, switch, path