Pressure vessels can be hazardous because:
A) They can cause electrical shock if the internal motor shorts out.
B) They emit harmful UV light at higher working pressures.
C) They can rupture violently like a bomb.
D) They are large and technicians might trip over them.
C
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The installation of a floor or roof deck is done by
A) the erector. B) the general contractor. C) the manufacturer of the deck. D) A, B, or C. E) A or B.
Which of the following is LEAST-Likely a loose part of a bare head?
A. The cylinder bore B. The intake and exhaust valves C. The keepers and retainers D. The rocker arms
The application calls for a sensor to detect small parts passing within a few mm of the sensor location. Access from one side only is permitted. What is the best sensor to use?
A) Diffused beam background suppression photoelectric B) Diffused beam shart cutoff photoelectric C) Diffused beam wide angle photoelectric D) Diffused beam fixed focus photoelectric E) None of the above
If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series, what is the voltage across the capacitor at the instant the switch is closed?
A) 6 V B) 0 V C) 12 V D) 24 V