ET ATT COMP TEST 2025-2026 QUESTIONS
AND ANSWERS GRADED A+
Minimum amount of current to "freeze" the body to a conductor:
12mA AC or 60mA DC
Different Current Amounts vs the Body:
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
Most serious type of burn, results from current flowing through tissue/bone.
,OSHA stands for:
Occupational Safety and Health Administration
Arc Burns
Caused by high temperatures near the body. Can be caused by arcs or explosions.
Thermal Contact Burns
Results from contact with high temperature surfaces.
The Law of Electrostatics States:
Unlike charges attract and like charges repel.
Power Resistor
Used with large current flows, are also known as "Wire Wound Resistors."
Precision Resistors
Have a tolerance of 1% or less. Used when exact resistance values are necessary.
, Tolerance
Measures the percent error of a resistor, the lower the tolerance the more accurate a
resistor's ohmic value.
Fuses
Open when too much current melts them.
Signals on a Schematic flow from:
Left to Right. Inputs on the left, outputs on the right.
The power supply on a schematic is usually at:
The bottom left.
All magnets possess:
A North Pole
A South Pole
Flux Lines
AND ANSWERS GRADED A+
Minimum amount of current to "freeze" the body to a conductor:
12mA AC or 60mA DC
Different Current Amounts vs the Body:
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
Most serious type of burn, results from current flowing through tissue/bone.
,OSHA stands for:
Occupational Safety and Health Administration
Arc Burns
Caused by high temperatures near the body. Can be caused by arcs or explosions.
Thermal Contact Burns
Results from contact with high temperature surfaces.
The Law of Electrostatics States:
Unlike charges attract and like charges repel.
Power Resistor
Used with large current flows, are also known as "Wire Wound Resistors."
Precision Resistors
Have a tolerance of 1% or less. Used when exact resistance values are necessary.
, Tolerance
Measures the percent error of a resistor, the lower the tolerance the more accurate a
resistor's ohmic value.
Fuses
Open when too much current melts them.
Signals on a Schematic flow from:
Left to Right. Inputs on the left, outputs on the right.
The power supply on a schematic is usually at:
The bottom left.
All magnets possess:
A North Pole
A South Pole
Flux Lines
