Identify three (3) of the eight (8) potential injuries from an electrical event.
What are Burns, Cardiac Death, Amputation, Memory Loss, Hearing Loss, Fracture, Cataract, Blast Plasma
100
Name the three (3) recognized electrical hazards that can cause injury or death while a person works on or near electrical equipment or systems.
What are ELECTRIC SHOCK, ARC FLASH, ARC BLAST
100
__________ is a direct result of an arc-blast event?
What is PRESSURE
100
The OSH Act comprises of ____ sections?
What is 35
100
With an understanding of the body's resistance and the circuit voltage, the current can be calculated using _______?
What is OHMS LAW
200
An arc flash hazard is a dangerous condition caused by the release of energy in a(n) ____________?
What is an ELECTRIC ARC
200
Contact with bare energized electrical conductive parts, causing current flow through the body that results in a failure of body functions and leads to death is best described as ______________?
What is ELECTROCUTION
200
Human skin resistance decreases when the bare body part is _______, compared to when ________?
What is WET / DRY
200
Employers must comply with the _____ ______ _____ found in Section 5 of the OSH Act, which is generally cited when no specific OSHA standard applies to the hazard?
What is GENERAL DUTY CLAUSE
200
Alligators are ornery because _________?
(two possible answers)
What is "they got all them teeth and no tooth brush"? or "the medulla oblongata"
300
Protective systems, such as work practices and PPE can help to ________ or __________ exposure to hazards?
What is REDUCE / ELIMINATE
300
In an average person ____ to ____ mA is range of current that causes the muscles to lock up and is call the ________?
What is 10 to 40 mA / LET-GO THRESHOLD
300
During an arc-fault event, the energy can be released in these three (3) forms ________, _________, and ________?
What is HEAT, LIGHT, AND PRESSURE
300
The two standards applicable to the majority of the work performed by electrical workers are found in ______ which applies Construction and ______ which applies General Industry?
What is PART 1926 / PART 1910
300
The standards set forth for the Electrical Safety-Related Work Practices are found in ________?
What is the NFPA 70E
400
Live parts to which an employee might be exposed must be de-energized before work can begin unless the employer can demonstrate de-energizing introduces ____________?
What is ADDITIONAL OR INCREASED HAZARDS OR IS INFEASIBLE DUE TO EQUIPMENT DESIGN OR OPERATIONAL LIMITATIONS
400
The thermal energy measured in cal/cm², resulting in burn to a worker in an arc-fault event is know as _________?
What is INCIDENT ENERGY
400
The most damaging path for electrical current is through the _______ and _________; respiratory paralysis can occur at ___ to ___ mA?
What is CHEST CAVITY AND HEAD / 30 to 75
400
In accordance with 1910.333(b)(1), conductors and parts of electric equipment that have been de-energized but are not locked out or tagged shall be treated as ________ parts?
What is ENERGIZED
400
A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected.
What is ARC-FAULT CIRCUIT INTERRUPTER (AFCI)
500
An electrical hazard is defined in NFPA 70E as a dangerous condition such that ______________?
What is CONTACT OR EQUIPMENT FAILURE CAN RESULT IN ELECTRIC SHOCK, ARC FLSH BURN, THERMAL BURN, OR BLAST
500
During an arcing fault event, the temperature of the arc terminals can reach approximately 35,000 °F, which is about ________ as hot as the surface of the sun.
What is FOUR TIMES
500
Given a 480 volt circuit combined with the internal body resistance of 100 ohms, Left-hand contact resistance of 350 ohms, and Foot contact resistance with ground of 550 ohms, determine the circuit current flow.
What is 0.480A OR 480mA
500
What are the four (4) parts included in the step to verify that an electrically safe work condition has been achieved and that each phase conductor or circuit part is
de-energized ?
What is 1) Before and after each test, verify voltage detector is operating satisfactorily, 2) determine all possible sources of non-electrical energy, 3) test each phase conductor or circuit part both phase to phase and phase to ground, 4) use an adequately rated voltage detector to test each phase conductor or circuit part
500
Permanent and conspicuous danger signs shall be provided. The danger sign shall meet the requirements in 110.21(B) and shall read as follows: _______________?
(code reference required with answer)
What is DANGER - HIGH VOLTAGE - KEEP OUT (110.34 C)