Which of the following may be used for cross-country transmission of oil, gasoline, or natural gas??
A. Low-pressure piping systems?
B. Medium-pressure piping systems?
C. High-pressure piping systems?
D. Spiral pipe?
Answer: C
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Your audio system uses 24 bits to encode audio waveform samples. How many different levels can be encoded using the approximation with the accompanying image?
What will be an ideal response?
A potentiometer is a three-wire ____ that acts as a voltage divider to produce a continuously variable output signal proportional to a mechanical position.
A. load device B. variable resistor C. rheostat D. measuring device
Which of the following is the formula used to calculate trip time?
A. speed multiplied by time B. speed divided by time C. distance divided by time D. distance divided by average speed
If there are 20 working days in a month, the monthly usage is 660 units, and there are 100 units on hand, approximately how many days' supply are there?
A) 33 B) 7 C) 3 D) 5