ET ATT COMP TEST CORRECT QUESTIONS AND VERIFIED
ANSWERS GRADED A+
OSHA stands for: - correct answer Occupational Safety and Health Administration
Minimum amount of current to "freeze" the body to a conductor: - correct answer 12mA AC
or 60mA DC
Different Current Amounts vs the Body: - correct 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 - correct answer Most serious type of burn, results from current flowing
through tissue/bone.
Arc Burns - correct answer Caused by high temperatures near the body. Can be caused by
arcs or explosions.
Thermal Contact Burns - correct answer Results from contact with high temperature
surfaces.
The Law of Electrostatics States: - correct answer Unlike charges attract and like charges
repel.
Power Resistor - correct answer Used with large current flows, are also known as "Wire
Wound Resistors."
Precision Resistors - correct answer Have a tolerance of 1% or less. Used when exact
resistance values are necessary.
Tolerance - correct answer Measures the percent error of a resistor, the lower the tolerance
the more accurate a resistor's ohmic value.
Fuses - correct answer Open when too much current melts them.
, Signals on a Schematic flow from: - correct answer Left to Right. Inputs on the left, outputs
on the right.
The power supply on a schematic is usually at: - correct answer The bottom left.
All magnets possess: - correct answer A North Pole
A South Pole
Flux Lines
Flux Lines - correct answer Lines that form a magnetic field around the magnet, moving
from North to South outside the magnet.
Permeability - correct answer How easy it is to magnetize something, the willingness of a
material to become magnetized.
Retentivity - correct answer How well a material can stay magnetic, ability of a material to
retain magnetism.
Ferrous Particles - correct answer Ferrous means iron. A material without ferrous particles is
NONMAGNETIC.
Left Hand Rule - correct answer A method for finding the north pole of an electromagnet.
The thumb is the direction of the current, the fingers are the direction of the flux lines.
oMagnetomotive oForce o- ocorrect oanswer oThat oforce othat ocreates othe oflux olines owhen
ocurrent opasses othrough oa ocoiled oconductor.
oMagnetic oCircuit oBreakers o- ocorrect oanswer oOpen oa ocircuit oby ogenerating oa omagnetic ofield
owhen ocurrent oflow obecomes oexcessive.
oMultimeter oFun oFacts! o- ocorrect oanswer o- oLeads oare onot oconsidered oa ofunctional oarea oof
othe omultimeter.
- oWhen omeasuring ocurrent, odon't oplace/remove oleads owith othe opower oon.
- oNever omeasure oresistance owith othe opower oon.
- oBest orange ois oalways othe oclosest ovalue oHIGHER othan ovalue oto obe omeasured.
Continuity o- ocorrect oanswer o- oThe oresistance oof oa owire/connection
o
ANSWERS GRADED A+
OSHA stands for: - correct answer Occupational Safety and Health Administration
Minimum amount of current to "freeze" the body to a conductor: - correct answer 12mA AC
or 60mA DC
Different Current Amounts vs the Body: - correct 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 - correct answer Most serious type of burn, results from current flowing
through tissue/bone.
Arc Burns - correct answer Caused by high temperatures near the body. Can be caused by
arcs or explosions.
Thermal Contact Burns - correct answer Results from contact with high temperature
surfaces.
The Law of Electrostatics States: - correct answer Unlike charges attract and like charges
repel.
Power Resistor - correct answer Used with large current flows, are also known as "Wire
Wound Resistors."
Precision Resistors - correct answer Have a tolerance of 1% or less. Used when exact
resistance values are necessary.
Tolerance - correct answer Measures the percent error of a resistor, the lower the tolerance
the more accurate a resistor's ohmic value.
Fuses - correct answer Open when too much current melts them.
, Signals on a Schematic flow from: - correct answer Left to Right. Inputs on the left, outputs
on the right.
The power supply on a schematic is usually at: - correct answer The bottom left.
All magnets possess: - correct answer A North Pole
A South Pole
Flux Lines
Flux Lines - correct answer Lines that form a magnetic field around the magnet, moving
from North to South outside the magnet.
Permeability - correct answer How easy it is to magnetize something, the willingness of a
material to become magnetized.
Retentivity - correct answer How well a material can stay magnetic, ability of a material to
retain magnetism.
Ferrous Particles - correct answer Ferrous means iron. A material without ferrous particles is
NONMAGNETIC.
Left Hand Rule - correct answer A method for finding the north pole of an electromagnet.
The thumb is the direction of the current, the fingers are the direction of the flux lines.
oMagnetomotive oForce o- ocorrect oanswer oThat oforce othat ocreates othe oflux olines owhen
ocurrent opasses othrough oa ocoiled oconductor.
oMagnetic oCircuit oBreakers o- ocorrect oanswer oOpen oa ocircuit oby ogenerating oa omagnetic ofield
owhen ocurrent oflow obecomes oexcessive.
oMultimeter oFun oFacts! o- ocorrect oanswer o- oLeads oare onot oconsidered oa ofunctional oarea oof
othe omultimeter.
- oWhen omeasuring ocurrent, odon't oplace/remove oleads owith othe opower oon.
- oNever omeasure oresistance owith othe opower oon.
- oBest orange ois oalways othe oclosest ovalue oHIGHER othan ovalue oto obe omeasured.
Continuity o- ocorrect oanswer o- oThe oresistance oof oa owire/connection
o
