An arc flash is defined as: Electricity igniting an explosive mixture of material in the air Reflex response to passage of electrical current through the body Procedures to safeguard employees from the unexpected energization or startup of machinery and equipment Sudden release of electrical energy through air when a high-voltage gap exists and there is a breakdown between conductors
Question
An arc flash is defined as: Electricity igniting an explosive mixture of material in the air Reflex response to passage of electrical current through the body Procedures to safeguard employees from the unexpected energization or startup of machinery and equipment Sudden release of electrical energy through air when a high-voltage gap exists and there is a breakdown between conductors
Solution
An arc flash is defined as a sudden release of electrical energy through air when a high-voltage gap exists and there is a breakdown between conductors. This phenomenon occurs when there's a fault, such as a short circuit, that causes an electric current to flow in an unintended path. The electricity in the air causes the surrounding air to ionize and become a conductor, creating a flash of light and a large amount of heat, which can cause serious harm to people and damage to equipment.
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What does the term "Flash Crash" refer to?Group of answer choicesA series of power plant failures leading to widespread power blackoutsThe start of the Global Financial Crisis in 2007The crash of the Vancouver Stock Exchange in 1982The loss of 1000 points from the Dow Jones Industrial Average in 2010The "Black Tuesday" Wall Street Crash of 1929
What does the term "Flash Crash" refer to?Group of answer choicesThe loss of 1000 points from the Dow Jones Industrial Average in 2010The "Black Tuesday" Wall Street Crash of 1929The start of the Global Financial Crisis in 2007The crash of the Vancouver Stock Exchange in 1982A series of power plant failures leading to widespread power blackouts
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