ATT Test 1 Objective Assessment
Complete frequently TESTED Exam
Questions with Definitive Correct
Answers A+ Graded!!100%
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GENERAL PRECAUTIONS OF ELECTRICAL SHOCK - ANSWER ✓ 1)
Report an situation or equipment that you consider unsafe
2) Warn others who are endangered by failing to observe safety procedures
3) Always use the required protective clothing and equipment
4) Report any injuries that occur
5) Exercise caution when confronted with unforeseen situations
6) Know precisely what to do in the event of electric shock
Where short circuit occurs; may cause fires - ANSWER ✓ Electrical Arcs
Damage equipment dispersing metal fragments - ANSWER ✓ Extremely high
arcs
Explode containing flammable gas, vapors, or combustible dusts - ANSWER ✓
Low energy arcs
1. Unsafe equipment 2. Unsafe environment 3.unsafe work practices - ANSWER
✓ Factors of electrical accidents
Any material with high resistance to electrical current - ANSWER ✓ Insulator
American wire gauge size, max voltage, temperature & manufacturers name or
trademark - ANSWER ✓ Identify conductors and cables
Green or green with yellow - ANSWER ✓ Grounding conductors
,Gray colored - ANSWER ✓ Circuit completing conductors
Any color other than green white or gray - ANSWER ✓ Ungrounded conductors
Must be guarded against accidental contact - ANSWER ✓ 50 voltz
Made with metal enclosed equipment or enclosed in a vault or area with lock -
ANSWER ✓ 600 volts or more
Conductive connection between electrical circuit and the earth or ground plane -
ANSWER ✓ Grounding
Service system and equipment - ANSWER ✓ Types of grounds
Any color other than green white or gray - ANSWER ✓ Ungrounded conductors
Made with metal enclosed equipment or enclosed in a vault or area with lock -
ANSWER ✓ 600 volts or more
Must be guarded against accidental contact - ANSWER ✓ 50 voltz
- ANSWER ✓ Grounding
PROTECTION DEVICES - ANSWER ✓ -sense excessive increase in current flow
and open circuits before damage occurs
Types:
1) Fuses
2) Circuit breakers
FUSE - ANSWER ✓ A safety device with a thin metal strip that will melt if too
much current passes through a circuit
Classified as
1) Fast action- melts in less than 1 sec
2) Slow-blow- melts approx. 30 secs after overload
, CIRCUIT BREAKER - ANSWER ✓ A reusable safety switch that automatically
breaks the circuit when the current becomes too high
-once overload is corrected, breaker is manually closed
CIRCUIT BREAKER CLASSIFICATION - ANSWER ✓ 1) Magnetic- magnetic
circuit breakers produces a magnetic field
2) Thermal- operate on temperature
MAGNETISM - ANSWER ✓ The force of attraction or repulsion of magnetic
materials
CHARACTERISTICS OF A MAGNET - ANSWER ✓ 1) North and South pole
2) Flux lines (magnetic field)
TRUE OR FALSE: THE MORE FLUX LINES THE STRONGER THE
MAGNETIC FIELD - ANSWER ✓ TRUE
RETENTIVITY - ANSWER ✓ the ability of a material to retain its magnetism
after the magnetizing force has been removed
Shock severity primary factors - ANSWER ✓ 1. Amount of current flowing
through body
2. Path of the current through body
3. Length of time the body is in the circuit
Electric shock - ANSWER ✓ Electricity passing through the body
Types of Electrical burns - ANSWER ✓ A. Electrical burns
B. Arc burns
C. Thermal contact burns
What is a current? - ANSWER ✓ Movement or FLOW of electrons
Ground - ANSWER ✓ Part of circuit that is electrically connected to earth
Minimum AC current normally req'd to cause severe muscular contractions -
ANSWER ✓ 12 ma
Complete frequently TESTED Exam
Questions with Definitive Correct
Answers A+ Graded!!100%
Guaranteed Pass!!<<Latest
Version>>
GENERAL PRECAUTIONS OF ELECTRICAL SHOCK - ANSWER ✓ 1)
Report an situation or equipment that you consider unsafe
2) Warn others who are endangered by failing to observe safety procedures
3) Always use the required protective clothing and equipment
4) Report any injuries that occur
5) Exercise caution when confronted with unforeseen situations
6) Know precisely what to do in the event of electric shock
Where short circuit occurs; may cause fires - ANSWER ✓ Electrical Arcs
Damage equipment dispersing metal fragments - ANSWER ✓ Extremely high
arcs
Explode containing flammable gas, vapors, or combustible dusts - ANSWER ✓
Low energy arcs
1. Unsafe equipment 2. Unsafe environment 3.unsafe work practices - ANSWER
✓ Factors of electrical accidents
Any material with high resistance to electrical current - ANSWER ✓ Insulator
American wire gauge size, max voltage, temperature & manufacturers name or
trademark - ANSWER ✓ Identify conductors and cables
Green or green with yellow - ANSWER ✓ Grounding conductors
,Gray colored - ANSWER ✓ Circuit completing conductors
Any color other than green white or gray - ANSWER ✓ Ungrounded conductors
Must be guarded against accidental contact - ANSWER ✓ 50 voltz
Made with metal enclosed equipment or enclosed in a vault or area with lock -
ANSWER ✓ 600 volts or more
Conductive connection between electrical circuit and the earth or ground plane -
ANSWER ✓ Grounding
Service system and equipment - ANSWER ✓ Types of grounds
Any color other than green white or gray - ANSWER ✓ Ungrounded conductors
Made with metal enclosed equipment or enclosed in a vault or area with lock -
ANSWER ✓ 600 volts or more
Must be guarded against accidental contact - ANSWER ✓ 50 voltz
- ANSWER ✓ Grounding
PROTECTION DEVICES - ANSWER ✓ -sense excessive increase in current flow
and open circuits before damage occurs
Types:
1) Fuses
2) Circuit breakers
FUSE - ANSWER ✓ A safety device with a thin metal strip that will melt if too
much current passes through a circuit
Classified as
1) Fast action- melts in less than 1 sec
2) Slow-blow- melts approx. 30 secs after overload
, CIRCUIT BREAKER - ANSWER ✓ A reusable safety switch that automatically
breaks the circuit when the current becomes too high
-once overload is corrected, breaker is manually closed
CIRCUIT BREAKER CLASSIFICATION - ANSWER ✓ 1) Magnetic- magnetic
circuit breakers produces a magnetic field
2) Thermal- operate on temperature
MAGNETISM - ANSWER ✓ The force of attraction or repulsion of magnetic
materials
CHARACTERISTICS OF A MAGNET - ANSWER ✓ 1) North and South pole
2) Flux lines (magnetic field)
TRUE OR FALSE: THE MORE FLUX LINES THE STRONGER THE
MAGNETIC FIELD - ANSWER ✓ TRUE
RETENTIVITY - ANSWER ✓ the ability of a material to retain its magnetism
after the magnetizing force has been removed
Shock severity primary factors - ANSWER ✓ 1. Amount of current flowing
through body
2. Path of the current through body
3. Length of time the body is in the circuit
Electric shock - ANSWER ✓ Electricity passing through the body
Types of Electrical burns - ANSWER ✓ A. Electrical burns
B. Arc burns
C. Thermal contact burns
What is a current? - ANSWER ✓ Movement or FLOW of electrons
Ground - ANSWER ✓ Part of circuit that is electrically connected to earth
Minimum AC current normally req'd to cause severe muscular contractions -
ANSWER ✓ 12 ma
