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Electric Safety 7
Test Description: You are going to learn how to protect yourself from electrocution
Instructions: Answer all questions to get your test result.
1) In the open switch circuit containing lamp
A
Lamp lights
B
Lamp does not light
C
Switch has no role
D
None of the above answers
2) Electric current flows in a closed electric circuit
A
The poles of dry cell doesn’t produce current
B
From negative pole of dry cell to positive one
C
All of the above choices
D
From positive pole of dry cell to negative one
3) —/ — represents
A
Closed switch
B
Dry cell
C
Open switch
D
Lamp
4) To measure current and voltage across an electric circuit we use
A
None of the above choices
B
Digital multimeter
C
Digital Balance
D
Screw driver
5) To measure the electric current in a circuit the ammeter is connected in
A
No need to connect it
B
Series
C
None of the above choices
D
Parallel
6) When the mode on a multimeter is 2 A it acts as:
A
Voltmeter
B
Ammeter
C
Ohmmeter
D
Hygrometer
7) The circuit breaker isused:
A
As source of electricity
B
Acts as a lamp
C
All of the above choices
D
Ensures the protection of electric installations
8) The fuse is used to:
A
Prevent the damage of electric appliances
B
Play same role as Circuit breaker
C
Protect the electric circuit
D
All of the above choices
9) The law of electric current in parallel grouping is:
A
Law of uniqueness
B
Law of addition
C
None of the above choices
D
Law of subtraction
10) One lamp in a series circuit burn out:
A
The other lamp glows normally
B
The other lamps stop glowing
C
None of the choices .
D
The other lamp glow strongly
*select an answer for all questions
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