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Worksheets

E E Quiz

Total questions: 27

Worksheet time: 14mins

Name
Class
Date
1.

Watt is the measurement unit of:

a)

Voltage

b)

Resistance

c)

Power

d)

Current

e)

None of the above

2.

Ampere is the measurement unit of:

a)

Voltage

b)

Resistance

c)

Power

d)

Current

e)

None of the above

3.

Volt is the measurement unit of:

a)

Voltage

b)

Resistance

c)

Power

d)

Current

e)

None of the above

4.

Ohm is the measurement unit of:

a)

Voltage

b)

Resistance

c)

Power

d)

Current

e)

None of the above

5.

Ohm law is:

a)

Voltage is Amperes / Resistance

b)

Voltage is Amperes * Resistance

c)

Amperes is Voltage * Resistance

d)

Resistance is Voltage * Amperes

e)

None of the above

6.

Three phase power supply notation is:

a)

L1, L2, L3

b)

A, B, C

c)

L1, L2, L3, N, PE

7.

Measuring the voltage between any 2 of the 3 phases is:

a)

400V

b)

230V

c)

110V

d)

None of the above

8.

Measuring the voltage between the phases and neutral or ground is:

a)

400V

b)

230V

c)

110V

d)

None of the above

9.

What is the purpose of a fuse?

a)

Start and stop of an electrical motor

b)

Make or break the electric circuit

c)

Limits the current flowing to an electrical circuit

d)

Protects an electric circuit from excessive electric current

e)

None of the above

10.

What is the purpose of a switch in a circuit?

a)

Start and stop of an electrical motor

b)

Make or break the electric circuit

c)

Limits the current flowing to an electrical circuit

d)

Protects an electric circuit from excessive electric current

e)

None of the above

11.

Which is the purpose of a contactor?

a)

Make or break the electric circuit

b)

Limits the current flowing to an electrical circuit

c)

Protects an electric circuit from excessive electric current

d)

Start and stop of an electrical motor

e)

None of the above

12.

Which is the purpose of a safety relay?

a)

Start and stop of an electrical motor

b)

Make or break the electric circuit

c)

Limits the current flowing to an electrical circuit

d)

Protects an electric circuit from excessive electric current

e)

None of the above

13.

Which can be safety components?

a)

Emergency buttons

b)

Programable logic controllers

c)

Barriers

d)

Light beacons or sound speakers

e)

Guard doors

14.

Which the usage of command supply (24VCC) ?

a)

Powering motors

b)

Switching relay or contactors

c)

Powering sensors

d)

Powering programable logic controllers

e)

None of the above

15.

Which are the types for connecting a three-phase motor?

a)

Star

b)

Straight

c)

Delta

d)

Cross

e)

None of the above

16.

Which are the types for connecting a motor?

a)

Soft starter

b)

Frequency invertor - driver

c)

Star-delta connection

d)

Fuse, contactor-switch, thermal protection

e)

None of the above

17.

Which are electric components used for powering a three phase motor?

a)

Fuse, power chords

b)

Switch, power chords

c)

Fuse, switch

d)

Fuse, switch, power chords

18.

Which electric component must be added to fuse, switch, power chords to protect the motor?

a)

Relay

b)

Contactor

c)

Thermal overload switch

d)

None of the above

19.

Which are the relation between the name and the symbol of motors?

a)

Stepper motor

b)

3 phase motor

c)

1 phase motor

d)

DC motor

e)

AC motor

20.

Which are the relation between the name and the symbol of motors?

a)

Stepper motor

b)

3 phase motor

c)

1 phase motor

d)

DC motor

e)

AC motor

21.

Which are the relation between the name and the symbol of motors?

a)

Stepper motor

b)

3 phase motor

c)

1 phase motor

d)

DC motor

e)

AC motor

22.

Which are the relation between the name and the symbol of motors?

a)

Stepper motor

b)

3 phase motor

c)

1 phase motor

d)

DC motor

e)

AC motor

23.

Which are the relation between the name and the symbol of motors?

a)

Stepper motor

b)

3 phase motor

c)

1 phase motor

d)

DC motor

e)

AC motor

24.

Which are the relation between the name and the symbol of sensor?

a)

Inductive sensor

b)

Proximity capacitive sensor

c)

Magnetic sensor

d)

Photoelectrical sensor

e)

None of the above

25.

Which are the relation between the name and the symbol of sensor?

a)

Inductive sensor

b)

Proximity capacitive sensor

c)

Magnetic sensor

d)

Photoelectrical sensor

e)

None of the above

26.

Which are the relation between the name and the symbol of sensor?

a)

Inductive sensor

b)

Proximity capacitive sensor

c)

Magnetic sensor

d)

Photoelectrical sensor

e)

None of the above

27.

Which are the relation between the name and the symbol of sensor?

a)

Inductive sensor

b)

Proximity capacitive sensor

c)

Magnetic sensor

d)

Photoelectrical sensor

e)

None of the above

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