chapter 3 Flashcards
“What is the upper safe limit of amperage that an average human body can sustaint according to the NEC
A. 2ma
B 5ma
c 10 ma
D 50 ma
B 5 ma
According to OSHA when an individual is elecrocuted which of the following best describes that persons condition
a the individual has been injured by an electric shock
b the individual has recieved an electric shock
c the individual is dead
d all are correct
d all are correct
which of the following voltage values is considered by the IEEE and OSHA as the low threshold to be b=potentially harmful to humans
A 12.6 Volts
B 50 volts
C 110 volts
D 220 Volts
B 50 voltes
Techinicia A says that a hydrogen fuel cell powertrain contains HV circuits. Technician B says that an automobile hybrid-electric powertarin contains HV circuits. Who is correct?
A tech A only
B tehc B only
C Both
D neither
C both
What CAT designation does a houshold vacuum cleaner fall udner
A CAT 1
B CAT II
C CAT III
D CAT IV
B CAT II
When working on HV vehicle electrical systems, what minimum category of tooling and PPE protection gear should be used
A CAT I
B CAT II
C CAT III
D CAT IV
Cat 3
Which of the following certifies that footwear is safe to work on HV vehicle electriacal systems
A Steel toe
B orange omega symbol
C a green UL certification SYmbold
D all of the above
D all of the above
What is the reason for working one handed wand keeping one hand in a pocket behind your back when working on HV circuits
A if one hand gets burned off, you’ll still have one good hand
B the back pocket of a pair of coveralls is a good ground point
C the spare hand can be used to grab an iron saftey rail in the even of an electric shock
D if exposed to an HV shock it minimizes the chance of the current apssing through the heart
D minimizes current
Why should technicians always wear CAT III certified PPE when working on HV vehicle systems even after the electrical circuits have been tested to be neutral
A lighting might strike the vehicle
B it impresses supervisors
C thermal runway even could occur
D for distributed capitance protection
Thermal runaway
which of the following best defines ventricular fibrillation
A a heart murmur
b the consequence of an electrical short circuit
C the result of an electrical shock that stops a heart from beatgin
d a medical tool design to reactivate a heart that has stopped beating
C result of electrical shock that stops a heart
the acronym AED stands for _____
A alternating electrical current discharge
b automated external difebrillator
c. accidental electrical discharge
D automatic eddy dissipation
B automated External Defibriallator
For which of the following conditions is an AED used
A heart fibrillation
B heart Defibrillation
C heart bypass surgery
D energizing a dead battery cell
A heart fibrillation
When a thermal runaway occurs in a Li-ion battery, which of the following is the most likely cause?
A manufacturing defect in a single cell
B breakdown of the battery bank cooling system
C exposure to external high temperatures
D deficit of electrolyte in a cell
A maufacturing defect in a single cell
Tehcnicia A says that an arc flash even is relatively harmles sbecause the electrical energy is released mainly as light. Techn B saws that arc blast can be deadly because it releases enough heat energy to vaporize metals. Who sis correct
A tech A
B tech B
C both
D neither
B. Tech B
which of the following is the minimum hand protection when working with HV circuits
A uncured cowhide welding gloves
B corrosive-protected rubber golves
C class e rated gloves
D class 0 rated gloves
D. Class 0 rated gloves
