Part 1-Electrical Theory Exam Test
Questions And All Correct Answers.
Providing a path to the earth often helps reduce electrostatic charge. - Answer True
Lighting frequency terminated to a point of elevation and strikes nonmetallic as well as metallic objects
with the same frequency. - Answer True
The termination of the lighting stroke is unlikely to ignite combustible materials. - Answer False
Lightning protection is intended to protect the building itself, as well as the electrical on or inside the
structure. - Answer False
Nonmagnetic metals are ferrous, meaning they do not contain any iron, and cannot be magnetized. -
Answer False
Magnetic lines of force can cross each other and they are called flux lines. - Answer False
It is not the force of the magnetic field through a conductor that produces electricity; it is the relative
motion of the field to the electrons within the conductor that produces the movement of electrons. -
Answer True
People become injured and death occurs when voltage pushes electrons though the human body
causing the heart to go into ventricular fibrillation. - Answer True
The severity of an electrical shock is dependent on the current lowing through the body. which is
impacted by circuit voltage and contact resistance. - Answer True
An electrical arc last can approach _____, which vaporizes metal parts and produces an explosive and
deadly pressure wave. - Answer 30,000 *F
Questions And All Correct Answers.
Providing a path to the earth often helps reduce electrostatic charge. - Answer True
Lighting frequency terminated to a point of elevation and strikes nonmetallic as well as metallic objects
with the same frequency. - Answer True
The termination of the lighting stroke is unlikely to ignite combustible materials. - Answer False
Lightning protection is intended to protect the building itself, as well as the electrical on or inside the
structure. - Answer False
Nonmagnetic metals are ferrous, meaning they do not contain any iron, and cannot be magnetized. -
Answer False
Magnetic lines of force can cross each other and they are called flux lines. - Answer False
It is not the force of the magnetic field through a conductor that produces electricity; it is the relative
motion of the field to the electrons within the conductor that produces the movement of electrons. -
Answer True
People become injured and death occurs when voltage pushes electrons though the human body
causing the heart to go into ventricular fibrillation. - Answer True
The severity of an electrical shock is dependent on the current lowing through the body. which is
impacted by circuit voltage and contact resistance. - Answer True
An electrical arc last can approach _____, which vaporizes metal parts and produces an explosive and
deadly pressure wave. - Answer 30,000 *F
