The current relay is built much like a solenoid, with copper wire wrapped around a steel hollow core holding a steel plunger.
Answer the following statement true (T) or false (F)
True
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Answer the following statement(s) true (T) or false (F)
1. And arc-flash is a violent electrical condition that causes molten metal to be thrown through the air. 2. An MSDS is a form that lists and explains each of the hazardous materials that an electrician may work with so they can safely use the material and respond to an emergency situation. 3. The three categories of electrical hazards that a photovoltaic system installer could be exposed to are arc, arc-flash, and arc-blast. 4. If current flows from one finger to another on the same hand it will not pass through vital organs like the heart. 5. An employer must provide an electrical safety program and safety training.
Which of the ways of showing threads includes crest and root lines that are perpendicular to the axis of the thread?
A. Detailed B. Schematic C. Isometric D. Simplified
Technician A says that solvents currently in use in a parts washer must always be labelled. Technician B says that Safety Kleen is a vendor that recycles and disposes of used solvent. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
The psia pressure reading of an inflated tire is the pressure __________.
A. above atmospheric pressure B. above a vacuum