For most systems, the minimum velocity in a vertical suction line is:
A) 3,000—3,500 ft per minute. B) 1,000—1,500 ft per minute.
C) 500—750 ft per minute. D) 750—1,000 ft per minute.
B
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Which of the following is unlikely to directly affect the ability of a heating system to vent combustion products?
a. The diameter of the vent and vent connector b. The combined length of the vent and vent connector c. The number of elbows in the vent system d. The type of ignition system used
Which of the following are methods for resolving conflict in organizations?
a. avoidance b. smoothing c. compromise d. All of these can cause conflict. e. None of these can cause conflict.
An 0.05 ?H inductance is larger than a ________
A) 0.000000008 H inductance B) 0.000005 H inductance C) 0.00005 H inductance D) 0.0000005 H inductance
Sensors that house an emitter and a receiver separately to create an infrared sensing barrier are known as a _______.
A. limit switch B. proximity switch C. light curtain D. pressure sensor