Daily Security Technology Quiz (2016.9.12)
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1. For processes, operations, and construction activities that pose a significant risk of dust and toxic substance contamination, effective comprehensive measures such as sealing, ____., absorption, and purification, along with monitoring devices, should be implemented to prevent the leakage, spread, and release of dust and toxins. A. High voltage B. Medium voltage C. Zero voltage D. Negative voltage 2. Safety colors have a wide range of uses; the following situation ____ is an application of safety colors. A. Pipes and similar items are painted in different colors. B. The color of electrical wires. C. The yellow paint on nitrogen cylinders. D. The color of the emergency stop button. The correct answers are: D; D
1.D, Negative pressure； 2. D. Color of the emergency stop button
A A ~~~~~~~~~~
D、Negative pressure D、Color of the emergency stop button