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1. 
The REBT prevents unsafe connections to be made. Some of its ITC (Complementary Technical Instructions) are:
A.
It allows connections in pararell of electrical outlets.
B.
It does not allow connections in pararell of electrical outlets.
C.
In bathrooms and kitchen the distance of any electrical equipment from the bathtub, bathroom sink or kitchen sink must be greater than 60 cm.
D.
In bathrooms and kitchen the distance of any electrical equipment from the bathtub, bathroom sink or kitchen sink must be less than 60 cm.
2. 
To avoid risky operations with electricity, some precautions must be taken...
A.
Working on an electrical system connecting the power at the service box.
B.
Handling the interior of a device that is disconnected to the current.
C.
Touching electrical devices when we are barefoot or weet.
D.
Not bypassing the protecction elements.
E.
Handling the electrical devices with the apropiate training.
F.
Not connecting more than one device to an electrical outlet.
3. 
Select the correct basic rules that must be followed in all electrical works to prevent electrical risk.
A.
Cutting voltage sources (optional)
B.
Blocking access, closing the cabinet once the voltage has been disconnected and signposting that nobody can touch it.
C.
Checking for the absence of voltage (mandatory)
D.
Connecting to a ground or short-circuiting the components to be manipulated (mandatory)
E.
Signposting the work area (mandatory)
4. 
In an electrical accident some precautions must be taken...
A.
Quickly cut the electric current.
B.
Separating the person affected by touching them directly, using an insulated element like wood or plastic.
C.
Forcing a short-circuit.
5. 
Household appliances include...
A.
Brown woods that help us in household tasks like: Washing machines, refrigerators, dishwashers, hoovers, electric mixers, irons and dryers.
B.
White woods that provide us entertainment like: televisions sets, radio, audio and video players, mobile phones, video games, video cameras and computers.
C.
An energy efficiency label which indicates, among other things, the energy consumption values.
D.
White goods that help us in household appliances and brown goods that provide us entertainment or communications.