ET ATT COMP TEST QUESTIONS AND
ANSWERS
OSHA stands for: - Answer-Occupational Safety and Health Administration
Minimum amount of current to "freeze" the body to a conductor: - Answer-12mA AC or 60mA DC
Different Current Amounts vs the Body: - Answer-1-5 mA: Faint tingling to slight shock
6-16 mA: Painful shock, shaky muscles
17-99 mA: Extreme pain, hard to let go, heart flutters begin
100-2000 mA: Heart flutters definite, severe muscle contractions, nerve damage, significant chance of
death.
2000+ mA: Cardiac arrest, organ damage, severe burns, certain death.
Electrical Burns - Answer-Most serious type of burn, results from current flowing through tissue/bone.
Arc Burns - Answer-Caused by high temperatures near the body. Can be caused by arcs or explosions.
Thermal Contact Burns - Answer-Results from contact with high temperature surfaces.
, The Law of Electrostatics States: - Answer-Unlike charges attract and like charges repel.
Power Resistor - Answer-Used with large current flows, are also known as "Wire Wound Resistors."
Precision Resistors - Answer-Have a tolerance of 1% or less. Used when exact resistance values are
necessary.
Tolerance - Answer-Measures the percent error of a resistor, the lower the tolerance the more accurate
a resistor's ohmic value.
Fuses - Answer-Open when too much current melts them.
Signals on a Schematic flow from: - Answer-Left to Right. Inputs on the left, outputs on the right.
The power supply on a schematic is usually at: - Answer-The bottom left.
All magnets possess: - Answer-A North Pole
A South Pole
Flux Lines
Flux Lines - Answer-Lines that form a magnetic field around the magnet, moving from North to South
outside the magnet.
Permeability - Answer-How easy it is to magnetize something, the willingness of a material to become
magnetized.
Retentivity - Answer-How well a material can stay magnetic, ability of a material to retain magnetism.
ANSWERS
OSHA stands for: - Answer-Occupational Safety and Health Administration
Minimum amount of current to "freeze" the body to a conductor: - Answer-12mA AC or 60mA DC
Different Current Amounts vs the Body: - Answer-1-5 mA: Faint tingling to slight shock
6-16 mA: Painful shock, shaky muscles
17-99 mA: Extreme pain, hard to let go, heart flutters begin
100-2000 mA: Heart flutters definite, severe muscle contractions, nerve damage, significant chance of
death.
2000+ mA: Cardiac arrest, organ damage, severe burns, certain death.
Electrical Burns - Answer-Most serious type of burn, results from current flowing through tissue/bone.
Arc Burns - Answer-Caused by high temperatures near the body. Can be caused by arcs or explosions.
Thermal Contact Burns - Answer-Results from contact with high temperature surfaces.
, The Law of Electrostatics States: - Answer-Unlike charges attract and like charges repel.
Power Resistor - Answer-Used with large current flows, are also known as "Wire Wound Resistors."
Precision Resistors - Answer-Have a tolerance of 1% or less. Used when exact resistance values are
necessary.
Tolerance - Answer-Measures the percent error of a resistor, the lower the tolerance the more accurate
a resistor's ohmic value.
Fuses - Answer-Open when too much current melts them.
Signals on a Schematic flow from: - Answer-Left to Right. Inputs on the left, outputs on the right.
The power supply on a schematic is usually at: - Answer-The bottom left.
All magnets possess: - Answer-A North Pole
A South Pole
Flux Lines
Flux Lines - Answer-Lines that form a magnetic field around the magnet, moving from North to South
outside the magnet.
Permeability - Answer-How easy it is to magnetize something, the willingness of a material to become
magnetized.
Retentivity - Answer-How well a material can stay magnetic, ability of a material to retain magnetism.
