Electricity

Question 1

An electric current is:

Answer 1

A flow of electrons

Question 2

Which electric currents can be used in electrotherapy?

Answer 2

High frequency currents of low voltage

Question 3

Which electric currents can be used in electrotherapy?

Answer 3

High frequency and middle frequency currents both of low voltage

Question 4

Which electric currents can be used in electrotherapy?

Answer 4

Faradic and galvanic currents both of low voltage

Question 5

Examples of solid conductors are:

Answer 5

Metals

Question 6

Examples of liquid conductors are:

Answer 6

Fluids in which ions are present

Question 7

Examples of liquid conductors are:

Answer 7

Body fluids and alkali solutions

Question 8

Which gas can conduct an electric current?

Answer 8

Neon

Question 9

Examples of insulators are:

Answer 9

Plastics

Question 10

An example of an insulator is:

Answer 10

Rubber

Question 11

The strength of an electric current is measured by its:

Answer 11

Amperage

Question 12

The pressure of an electric current is measured by its

Answer 12

Voltage

Question 13

The power of an electrical appliance is measured by its:

Answer 13

Wattage

Question 14

In an electrical circuit, if the voltage is doubled and the resistance halved, the intensity of the current is:

Answer 14

Increased four times

Question 15

The unit of current strength is:

Answer 15

Ampere

Question 16

The unit of current pressure is:

Answer 16

Volt

Question 17

The unit of electrical resistance is:

Answer 17

Ohm

Question 18

The unit of electrical power is:

Answer 18

Watt

Question 19

A current with a constant strength used in beauty therapy is called:

Answer 19

Galvanic

Question 20

A so-called ‘‘faradic type current’’ is:

Answer 20

An interrupted galvanic current

Question 21

The current that is used to tone muscles is called:

Answer 21

Faradic

Question 22

A so-called ‘‘faradic type current’’ is different from a galvanic current in beauty therapy because:

Answer 22

It is more effective for training muscles

Question 23

A galvanic current is different from a so called ‘‘faradic type current’’ in beauty therapy because:

Answer 23

It is more effective for iontophoresis

Question 24

Which machine for treatments in beauty therapy supplies galvanic current

Answer 24

A machine for iontophoresis

Question 25

For which treatments in beauty therapy is galvanic current used?

Answer 25

Iontophoresis

Question 26

For which treatments in beauty therapy is galvanic current used?

Answer 26

Iontophoresis and electric desincrustation

Question 27

The meaning of iontophoresis is:

Answer 27

To force cosmetic ingredients deeper into the skin

Question 28

The meaning of desincrustation is:

Answer 28

To remove substances from the skin's surface

Question 29

Desincrustation to remove substances from the surface of the skin is done with a:

Answer 29

Galvanic machine and cathode as the active electrode

Question 30

The effect of desincrustation on sebum is:

Answer 30

A saponification process caused by galvanic current

Question 31

A machine for iontophoresis is most likely to contain

Answer 31

A rectifier and a transformer

Question 32

A machine for desincrustation is most likely to contain:

Answer 32

A rectifier and a transformer

Question 33

I. Galvanic current can be obtained from a dry cell (Battery) II. The electric mains supplies galvanic current

Answer 33

I is correct and II is incorrect

Question 34

The electrical device that changes alternating current into direct current is a:

Answer 34

Rectifier

Question 35

The function of a rectifier is to change:

Answer 35

An alternating current into a galvanic current

Question 36

When do the electrodes in electrotherapy have to be moistened or to be applied on a moistened skin?

Answer 36

In iontophoresis and not short wave diathermy

Question 37

What can occur if a galvanic electrode is not applied to the skin with a regular pressure all over the surface of the electrode

Answer 37

On the spot of the highest pressure skin burning can occur

Question 38

The electrical device that changes voltage is called a

Answer 38

Transformer

Question 39

The function of a transformer is to change:

Answer 39

The voltage of an alternating current to a different voltage

Question 40

A fuse is an electrical device that:

Answer 40

Protects apparatus or circuits from overloading

Question 41

A fuse is an electrical apparatus:

Answer 41

Is the weakest part of the electrical circuit

Question 42

The safety practices that should be observed in a beauty salon when using electrical appliances:

Answer 42

Are the responsibility of the employer of the salon