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18 Cards in this Set
- Front
- Back
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what is the most Important rule of electrical Safety? |
Think! |
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why should a person work with only one hand when possible? |
To avoid Getting shocked through the chest |
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what range of electric current generally causes death? |
100 to 200 milliamps (.100-.200 amps) |
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What is Fibrillation of the heart? |
(Death) This range generally Causes 0.100- 0.200 fibrillation of the heart. when the heart is in this condition, it vibrates at a fast rate like a "quiver" and ceases to pump blood to the rest of the body. |
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what is the Operating Principle of a i Defibrillator? |
Currents above 200 milliamperes cause the heart to squeeze Shut. When the current is removed, the heart usually returns to a normal Pumping action. This is the operating Principe of a defibrillator. |
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Who is responsible for enforcing OSHA regulations? |
Employers |
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What is the Mission of OSHA? |
It's mission is to ensure safe and healthful Workplaces in the United States. |
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What is an MSDS? |
Malarial Safety Data Sheet |
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A padlock is used to lockout a piece of equipment. Who should have the key? |
The Person working on it |
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A ladder is used to reach the top of a building 16 feet tall. What distance should the bottom of the ladder be placed from the side of the building? |
One Forth the length of the ladder. |
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What is a ground Fault? |
A ground fault occurs when electricity travels outside an intended path and tries to get to the ground by the shortest route. If you touch electricity while you are grounded (touching the ground or something resting on the ground, like a ladder), your body becomes electricity's shortest route to ground. |
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what is the approximate current at which a ground-fault detector will open the circuit? |
The GFCI is designed to detect this current dif ference to protect personnel by opening the circuit when it detects a current difference of ap proximately 5 milliamperes (0.005 ampere). |
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Name three devices used to provide ground-fault protection. |
(Ground Fault Circuit Interrupter) Breaker, receptical, extension Cord. |
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What type of fire is Class B? |
Class B fires involve fuels such as grease, combustible liquids, or gases. |
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What section of the NEC covers grounding? |
NEC 250 covers the requirements of the grounding of electrical systems. |
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What are Class D fires? |
Burning metal. Class D extinguishers use powder to coat the metals because water can make it worse on some metals. |
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What are Class C Fires? |
Electric fires. Class C extinguishers usually use a dry powder to smother the fire. |
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What is a Class A fire? |
Class A fires are made of materials like wood or paper. They use water to put them out. |
