Review: Electrical safety training assessment
Respondent
12
1
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Points
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/ 1 pt
Name and Surname *
2
Email address *
Option 1
3
Correct 1/1 Points
4
Ohm´s Law *
V=CxR
C=VxR
R=V+C
Auto-graded
Correct 1/1 Points
1
/ 1 pt
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5
Average resistance of the human body *
1 ohm
50 ohms
1500 ohms
Incorrect 0/1 Points
0
/ 1 pt
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6
What voltage level is enough to kill you? *
25 V
50 V
250 V
Correct 1/1 Points
1
/ 1 pt
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7
What current rate could cause inability to let-go in case of contact? *
3 mA
6-30 mA
50-100 mA
Incorrect 0/1 Points
8
If the resistance of a circuit connected to a 5V source is negligible (theoretically zero), how would be the
current level? *
Current will be zero too
Current will be very high
Current will be very low
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Correct 1/1 Points
1
/ 1 pt
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9
What type of electrical hazards can be found on an electrical work? *
Electric shock (direct and indirect contact), arc flash and arc blast
Electric shock (direct and indirect contact)
Burns and respiratory arrest
Correct 1/1 Points
1
/ 1 pt
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10
Effects of arc flash *
Burns due to radiation and heat, ear and respiratory function affection
Cardiac arrest and burns
Ventricular fibrilation
Incorrect 0/1 Points
0
/ 1 pt
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11
What is the minimum protection level in the arc flash protection garments required as per Power Grids´ standards? *
8 cal/cm2
12 cal/cm2
25 cal/cm2
Incorrect 0/1 Points
12
What is the purpose of the plastic cover on earthing / grounding cables? *
Is made with insulated material and you can touch it while installed
Provide some mechanical protection only, it can´t be used as insulated cable
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/ 1 pt
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Correct 1/1 Points
1
/ 1 pt
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13
How should I act in case of electrical incident? *
Cut off the supply, protect the injured person, call for assistance and assist the injured person according with my
competence as First Aider
Verify if the injured person is breathing and if necessary start Cardiopulmonary Resuscitation (CPR)
Move the injured person to a safe location, find the defibrillator and follow the instructions
Correct 1/1 Points
1
/ 1 pt
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14
What 4 factors determines how severe an electric shock will be? *
Voltage, protection, resistance, perspiration
Voltage, duration, current path, resistance
Current, density, body mass, impedance
Heat, blood flow, pressure, moisture
Correct 1/1 Points
15
Can anyone work directly on a "out of service" system? *
Yes, if my manager assigned that task to me
Yes, only if is a customer´s request
No! Not until I have created a safe working area applying the 7 steps
1
/ 1 pt
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Correct 1/1 Points
1
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16
What is the scope of the 3rd step? Disconnecting electrical sources *
Disconnect every power source connected to the equipment or system where I will be working and secure them against
reconnection
Disconnect the apparatus connected upstream the equipment I will be working on
Open disconnectors
Correct 1/1 Points
1
/ 1 pt
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17
What is a "Secondary Effect" injury? *
The ionization process in the conduction of electricity through a gas
Double vision arising from a blow to the head
An injury that arises from, but is not due to, a person receiving an electric shock
The rapid heating of an electrical conductor when current is passed through it
Correct 1/1 Points
18
In terms of electrical work what is an Arc Flash? *
A bright light from a welder´s torch
An electrical short circuit that leads to a rapid rise in temperature and pressure in the air between electrical conductors,
causing and explosion
An electric arc that is immediately earthed to prevent injury or damage
An external drive unit for your PC
1
/ 1 pt
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Incorrect 0/1 Points
0
/ 1 pt
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19
How frequently are we required to carry out an infrared inspection on electrical equipment installed in the
Power Grids factories? *
According with the manufacturer instructions
At least every 2 years
At least every 5 years
Only when equipment have signs of damage
Correct 1/1 Points
1
/ 1 pt
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20
What must the person in charge of the working party (PICW) ensure? *
That all members of the working party know what time to finish
Members of the working party keep their tools in good condition
That members of the working party are polite to the customer
That safe system of work are agreed, implemented and maintained
Correct 1/1 Points
21
Stages of the verification of absence of voltage: *
Check that voltage detector works, test the absence of voltage, communicate the result to the PICW
Check that voltage detector works, test the absence of voltage, ground the system immediately
Identify the parts where the voltage detection will be needed. Check that voltage detector works, test the absence of
voltage on each conductor, re-check that voltage detector works
1
/ 1 pt
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Incorrect 0/1 Points
0
/ 1 pt
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22
In what situations you could find voltages lower than the detection threshold of the voltage detection
device? *
Due to the proximity of high voltage lines
After caring out some high voltage test or in transformer that has gone through oil flow treatment
Two previous answers are correct
Correct 1/1 Points
1
/ 1 pt
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23
Once we have verified that equipment is dead. We need to: *
Communicate to the PICW and then I can work on the equipment with the proper PPE
Nothing else, I can work on the equipment because I already know that is dead
Bond and ground each conductor right after verifying the absence of voltage
Correct 1/1 Points
24
Choose the correct option when carrying out grounding operations. *
Grounding cables can be touched once installed due to its isolation protection
We must connect the grounded end first to the earth and then to conductor
Both options are correct
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Correct 1/1 Points
1
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25
How will you ensure proper earthing and Short Circuiting? *
Ensure Portable Earths are properly sized for the Fault Current Rating if being used as Main (Primary) Earths.
Always apply the Earthing Point first before applying to phases.
Ensure that Earths are located in a visible location as close to the work zone as practical.
Ensure that all earths are applied are noted in the Permit to Work.
All the above.
Only (1) and (4) above
None of the above.
Correct 1/1 Points
1
/ 1 pt
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26
Who can fit a personal lock and tag to a point of isolation once locked? *
Everyone working on the equipment / circuit
Only the PICW
Only an Electrically Competent Person (ECP)
Only an Electrically Authorized Person (EAP)
Correct 1/1 Points
27
What is the purpose of the Electrical Safety Matrix for selection of "Electrical PPE"? Two options are correct *
To enable work to be undertaken with the lightest weight garments available
To provide a quick guide as to the level and type of AF protection required where no AF risk assessment exists
To provide accurate information about the AF rating of switchgear
To help ensure compliance with all relevant HAPG electrical Standards
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Correct 1/1 Points
1
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28
In a situation where is required to work under a permit. When can you commence the work? *
Any time if I am not the PICW
After PTW is authorized and issued
After signing off the PTW
Any time if I do not need to sign off the PTW
After verifying points of isolations
Incorrect 0/1 Points
0
/ 1 pt
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29
What type of device is required to verify the absence of voltage in LV equipment? *
Multimeters, proximity detectors and voltage detectors
Proximity detectors and voltage detectors
Voltage detectors only
Incorrect 0/1 Points
30
Why do I need to wear insulated gloves? *
To protect myself against electric shock
To protect myself against arc flash
Both answers are correct
0
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Correct 1/1 Points
1
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31
To achieve the EAP (Electrically Authorized Person), what of the following statements determine one of the
requirements included in the Standards *
Demonstrate at least three years of experience in the same field, range of products, activities, duties and responsibilities
in the work subject of the certification
Be assigned by my Line Manager as EAP
Have a great knowledge of Permit to Work systems
Correct 1/1 Points
1
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32
What requirements you need to comply to be nominated as PICW *
Achieve a EAP (Electrically Authorized Person) competency level I would be responsible for all the activities that I supervise
Comply with the legal requirements of my country related to electrical safety
Achieve a EAP (Electrically Authorized Person) competency level and be appointed by the responsible manager to
oversight a specific activity
Correct 1/1 Points
33
If a contractor working under a PICW arrives to a customer site without Arc flash PPE, what action should the
PICW take? *
Allow the contractor to work this time, but issue a warning that if they do it again, they will not be allowed on site
Seek to provide the necessary arc flash PPE to contractor for the planned activities. If not possible, then the contractor
shall be prevented from entering an electrical work environment until appropriate arc flash PPE is sourced and worn. In
all cases, escalate issue to Line Manager to address with contracting company to prevent future reoccurrence
Perform a risk assessment, and if the likelihood of an arc flash event is considered low enough, then the contractor can
proceed without the mandatory arc flash PPE
The PICW should ignore the issue and continue work as planned if the customer agrees it is not an issue for them
1
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Correct 1/1 Points
1
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34
Which of the following statements are true? PICW is: *
Responsible for supervising and coordinating the working party
Responsible for ensuring that all members of the working party are fully briefed and aware of their allocated work activities
Responsible for ensuring that emergency preparation measures are in place and communicated to the working party
Responsible for reviewing the Permit to Work and "Walking the Permit" with the Customer
All of the above
Incorrect 0/1 Points
0
/ 1 pt
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35
Pressure to perform a task unsafely can be felt directly or indirectly primarily from *
Customers
Colleagues/Work mates
Supervisors/Managers
Customers, Supervisors and Managers
None of the above
Correct 1/1 Points
36
You are the PICW for work to be carried out on a customer site. The customer has switched out the plant,
prepared the Electrical Permit To Work (PTW) and states that he is extremally busy and asks you to sign the
PTW receipt immediately. Would you *
Receive the PTW and commence work.
Sign the PTW receipt and once the customer has left walk the permit.
Politely request that you spend a few minutes to discuss the work to be done, and with the aid of a SLD determine that
the safety precautions nominated on the permit are adequate, walk the permit and, provided you are satisfied you can
carry out the work safely, receive the permit.
1
/ 1 pt
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Incorrect 0/1 Points
0
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37
Why is pre-planning your work a good idea? *
It ensures that everyone in your working party understands their role as the work progresses
It demonstrates to your customer and working party that you have a professional approach to your work
It helps to prevent project over-runs that ultimately result in lost revenue
All of the above
Correct 3/3 Points
38
Considering that all the equipment are live, what would be the steps to work in the motor M1? *
Open disconnector D2 and ground the line
Open circuit breaker C4, open disconnector D2, verify the absence of voltage and ground the line
Open disconnector D1 and circuit breaker C6, verify the absence of voltage and ground the line
3
/ 3 pts
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Correct 3/3 Points
39
Considering that all the equipment are live, what would be the steps to work in busbar C-LV? *
Open circuit breakers on LV Loads, open circuit breaker C10, rack out breaker C10. Ground LV side of T4
Open circuit breaker on LV Loads, open circuit breaker C10, rack out C10. Verify the absence of voltage in the LV side of
T4 and ground the LV side of T4 on a visible point
Open circuit breakers on LV Loads, open circuit breaker C10, rack out circuit breaker C10. Verify the absence of voltage in
the LV side of T4 and ground Busbar B-MV.
3
/ 3 pts
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