What must happen before any work may be performed in a confined space?
a. Classification by a qualified individual
b. Shut off and lock out power sources
c. Completion of a hazard review
d. Installation of additional ventilatio
c. Completion of a hazard review
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Ceiling diffuser performance relies on a phenomenon called the Coanda effect. What is it?
A) Cold air clings to the ceiling upon being discharged. B) Cold air diffuses to achieve even space temperatures. C) Cold air swirls to mix with room air. D) Cold air is directed downward to sources of heat gain.
During egg production, the ovum falls into which funnel-shaped structure that surrounds the ovum?
a. Ovary c. Magnum b. Infundibulum d. Mucin
An electric circuit without a complete path is called:
A) An open circuit. B) A short circuit. C) A fundamental circuit. D) A grounded circuit.
A one-shot multivibrator is also known as a
A) buffer B) inverter C) free-running multivibrator D) monostable multivibrator