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Worksheets

Control circuit equipment

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which description below best matches the symbol shown?

a)

Pilot lamp with pushbutton test

b)

Wall light

c)

Pilot lamp

d)

Pilot lamp (red)

2.

Which description below best matches the symbol shown?

a)

Bus duct

b)

Fuse

c)

Inductor

d)

Solenoid

3.

Which description below best matches the symbol shown?

a)

Control relay coil

b)

Motor starter coil

c)

Contactor coil

d)

Indicating light

4.

Which description below best matches the symbol shown?

a)

Preset iron dust cored inductor

b)

Preset air cored inductor

c)

Fixed ferrite cored inductor

d)

Roller coaster variable inductor

5.

Which description below best matches the symbol shown?

a)

3-position pneumatic solenoid

b)

Thermal overload element

c)

2-position normally closed relay

d)

2-position hydraulic solenoid

6.

Which description below best matches the symbol shown?

a)

Horn

b)

Bell

c)

Buzzer

d)

Siren

7.

Which description below best matches the symbol shown?

a)

Wavemeter

b)

Oscilloscope

c)

Synchroscope

d)

Galvonometer

8.

Which description below best matches the symbol shown?

a)

Manual operated control valve

b)

Rotary actuated control valve

c)

Motor operated control valve

d)

Diaphragm actuator control valve

9.

Which description below best matches the symbol shown?

a)

Single-phase AC motor

b)

3-phase, squirrel-cage motor

c)

2-phase, 4-wire motor

d)

Wound-rotor, 3-phase motor

10.

Which description below best matches the symbol shown?

a)

Magnetic overload relay

b)

Normally closed contactor

c)

Thermal overload relay

d)

Series shunt coil

11.

Which description below best matches the symbol shown?

a)

Normally open contactor

b)

Normally open contactor with shunt blowout

c)

Normally open contactor with blowout

d)

Normally closed contactor with blowout

12.

Which description below best matches the symbol shown?

a)

DC motor, permanent magnet

b)

Single-phase repulsion motor

c)

Single-phase synchronous motor

d)

Stepper motor

13.

1-

The device shown in the figure is …………………………….

a)

Two way switch

b)

Limit switch

c)

one way switch

d)

three way switch

14.

1-

The figure shows …………………….

a)

Two way switch

b)

Limit switch

c)

one way switch

d)

Auxiliary contacts

15.

The protection device shown in the figure is …………………………….

a)

RCD

b)

Limit switch

c)

Contactor

d)

Fuse

16.

The figure shows …………………….

a)

RCD

b)

Limit switch

c)

Overload

d)

Fuse

17.

The figure shows …………………….

a)

RCD

b)

Limit switch

c)

Overload

d)

Isolator switch

18.

The figure shows …………………….

a)

Stop/Start push button

b)

Limit switch

c)

Overload

d)

Isolator switch

19.

Figure shows the sample of ………………………

a)

Stop/Start push button

b)

Limit switch

c)

Overload

d)

N/O contact

20.

Figure shows the sample of ………………………

a)

Stop/Start push button

b)

Coil

c)

Overload

d)

N/O contact

21.

Figure shows the sample of ………………………

a)

Stop/Start push button

b)

Coil

c)

Overload sample.

d)

N/O contact

22.

Figure shows the sample of ………………………

a)

Stop/Start push button

b)

N/C contact

c)

Overload sample.

d)

N/O contact

23.

The part number ( 1 ) in the figure is ………………..

a)

Magnetic coil : produce magnetic field

b)

Magnetic core.

c)

Armature : moving part

d)

Spring.

24.

The part number ( 2 ) in the figure is ………………..

a)

Magnetic coil : produce magnetic field

b)

Magnetic core.

c)

Armature : moving part

d)

Spring.

25.

The part number ( 3 ) in the figure is ………………..

a)

Magnetic coil : produce magnetic field

b)

Magnetic core.

c)

Armature : moving part

d)

Spring.

26.

The figure show is …………………….

a)

Start push button : to start the circuit . (ON)

b)

Magnetic core.

c)

Armature : moving part

d)

Stationary contacts (Fixed contacts)

27.

The figure show is …………………….

a)

Start push button : to start the circuit . (ON)

b)

Stop push button : to stop the circuit . (Off)

c)

Armature : moving part

d)

Stationary contacts (Fixed contacts)

28.

The figure show is …………………….

a)

Start push button : to start the circuit . (ON)

b)

Stop push button : to stop the circuit . (Off)

c)

- Normally open contacts :

d)

Stationary contacts (Fixed contacts)

29.

What is in the picture?

a)

Capacitor

b)

Resistor

c)

Diode

d)

Inductor

30.

What is in the picture?

a)

Capacitor

b)

Resistor

c)

Diode

d)

Inductor

31.

PLC stands for.

a)

Programmable Logic Circuits

b)

Programmable Logic Controllers

c)

Programmable Level Circuits

d)

Portable Logic Controllers

32.

A typical system for the starting of large motors is?

a)

Delta

b)

Star- Delta

c)

Star

d)

Delta – Star

33.

The back EMF produced in running motors by?

a)

Slip rings

b)

Rotor

c)

Stator

d)

Capacitor

34.

Look at the picture. What are the function of the lamp?

a)

giving sign in the control circuit

b)

to measure resistance, voltage and electric current

c)

to detect the present of solid object

d)

giving light in the electric circuit

35.

Look at the picture. What do you call of it?

a)

Pneumatic hose

b)

photoelectric sensor

c)

magnetic contactor

d)

omron timer

36.

What is the function of this component?

a)

as a solid object presence detector

b)

as a connector betweed air and other component

c)

as a connector and circuit breaker which can be controlled remotely

d)

as time indicator in electronic devices

37.

What do you call of this component?

a)

Magnetic contactor

b)

selector switch

c)

pneumatic cylinder

d)

double solenoid valve

38.

Which one is a pneumatic cylinder?

a)
b)
c)
d)
39.

Which component do you think possible to detect the presence of nearby object without physical contact?

a)
b)
c)
d)
40.

What is this component for?

a)

to turn off/cut off the electricity to machines or other electronic equipment quiclty and easily

b)

to connect and disconnect an electrical circuit

c)

to join wire to equipment

d)

to detect object based on the distance

41.

Which one do you think can take gas or air from around then be pressed in the tube and channeled back as pressed air

a)
b)
c)
42.

what do you call these wires?

a)

proximity sensors

b)

banana connectors

c)

pneumatic hose

d)

junction

43.

Sometime, Avometer is called ....

a)

amperemeter

b)

multimeter

c)

voltmeter

d)

wattmeter

44.

That’s all I want to say about ….. Thanks for your attention.

The expression above is part of ..........

a)

opening speech

b)

elaborating topic

c)

closing speech

d)

making conclusion

45.

Electrical equipment used to drive fans, pumps and open type compressor:

a)

Low pressure switch

b)

Three phase motor

c)

High pressure switch

d)

thermostat

46.

Electrical control device of 3-phase motor in the figure is:

a)

Magnetic contactor

b)

Overload

c)

Fuse switch

d)

circuit switch

47.

A control part in the figure is

a)

Line voltage thermostat

b)

Regulator

c)

On/off switch

d)

Low voltage thermostat

48.

An electrical control device in the figure is:

a)

Overload

b)

Contactor

c)

Transformer

d)

circuit breaker

49.

Three phase motor connection shown in the figure

a)

Magnetic contactor

b)

Reverse the direction of rotation

c)

Auto transformer connection

d)

Star- delta connection

50.

The data of 3-phase motor is called:

a)

Motor price

b)

Control circuit

c)

Operating manual

d)

Name plate