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UNIT 35

Total questions: 71

Worksheet time: 36mins

Name
Class
Date
1.

Identify component

a)

Push button

b)

rotary switch

c)

lever switch        

d)

limit switch

2.

Identify the measurement symbol

a)

Kilo

b)

Mega

c)

Milli

d)

Micro

3.

Secondery batteries example

a)

Lead acid

b)

Lithium-ion

c)

Nicle-cadium

d)

Silver-calcium

4.

Which of these an industrial control System

a)

Printed circuit

b)

Electronic

c)

Soft starter

d)

Programable logic controler

5.

The picture shown is a

a)

PLC

b)

Printed Circuit Board

c)

Soft starter

d)

Circuit breaker

6.

The cable tie shown is

a)

Blank flag identification tie   

b)

Tefzel ties

c)

ribbon cable tie      

d)

Spiral cable wrap

7.

are designed to apply adjustable voltage to  motor & increase voltage gradually over  user-selectable acceleration period

a)

Soft Starters

b)

Contactors

c)

PLC

d)

Relays

8.

Unit of measuring capcitance

a)

Ohm

b)

Henry

c)

Farad

d)

Watt

9.

Voltage calculated by Ohms low by

a)

Divide current by resistance

b)

Divide resistance by current

c)

Multiply current by resistance

d)

Add current to resistance

10.

Which ofb the following problems associated with insulation removal

a)

Strands cut out of multicore cables

b)

Nicks in conductors

c)

Stripped plating and scores in solid metal conductors

d)

All the above

11.

A cable having only one copper wire inside the insulation. Used in general industrial wiring installation is

a)

Mineral cable

b)

Screened cables

c)

Solid & Multistrand cable

d)

Single core cable

12.

A cable Used in critical fire protection such as alarm circuit, fire pumps, and smoke control system.

a)

Single core cable

b)

Mineral cable

c)

Steel wire armoured cable

d)

Screened cables

13.

fuse links type fixed to carrier with screws

a)

S type

b)

N type

c)

NS type

d)

A type

14.

A temperature-sensitive resistor used for measuring & controlling temperature up to 300◦C

a)

Thermostat

b)

Thermocouple

c)

Thermistor

d)

Thermos

15.

changes A/C into D/C

a)

Rectifier

b)

Amplifier

c)

Inverter

d)

Conductor

16.

A rectifier is opposite of an ..................... , which changes D/C into A/C

a)

Convertor

b)

Comparator

c)

Inverter

d)

Capcitor

17.

A device that adjusts amount of heating & cooling produced and/or distributed by automatically responding to  temperature of  environment.

a)

Thermistor

b)

Thermostat

c)

Thermion

d)

Theorm

18.

The picture is

a)

Photo switch

b)

Push- button switch

c)

Toggle switch

d)

Limit switch

19.

The picture is

a)

Single Core-

b)

Screened Cable

c)

Ribbon Cable

d)

Co-Axial Cable-

20.

The type of cable tie is

a)

Marker cable ties

b)

Spiral cable wrap

c)

Self-locking cable ties

d)

Re-sealable cable ties

21.

A device for heating soldering two metal parts together

a)

Abrasive pad

b)

Heater

c)

Clips

d)

soldering iron

22.

When not in use, soldering irons which of the following used

a)

Sand paper

b)

soldering stand

c)

Flux

d)

Brazing

23.

ISO means

a)

International Oil for Standardization

b)

National Organization for Standardization

c)

International Organization for Standardization

d)

International Organization for Science

24.

Identify the symbol

a)

Hazard

b)

Galvanometer

c)

oscilloscope

d)

Potentiometer

25.

A cable composed of two or several small insulated conductors twisted together without  common covering

a)

Co-Axial Cable

b)

Ribbon Cable

c)

Multi-Core Cable

d)

Twisted Pair

26.

Shows the detailed connections between components or items of equipment

a)

circuit diagram

b)

schematic drawing

c)

wiring diagram or connection diagram

d)

block diagram

27.

What is the function of Plastic trunking in enclosure

a)

Provide a method to identify wires

b)

Provide support to enclosure

c)

Carry components

d)

provides protection, keeps wires & cables neat & tidy

28.

For overcurrent protection, designed to operate within specified limits

a)

Circuit breakers

b)

Relay

c)

Capcitor

d)

Contactor

29.

The symbol is

a)

Fuse

b)

Resistor

c)

Cpcitor

d)

Relay coil

30.

The capacitor consist of tow metai plates seperated by insulator called

a)

separator

b)

regulator

c)

dielectric

d)

concentric

31.

A ......................... details in which wires laid into the cable form and the position of the wires end

a)

wiring schedule

b)

cable binding

c)

template

d)

run- out sheet

32.

It is a hollow fixed cylinder, several times longer than its diameter, and outside closely wound around with a uniform coil of insulated wire: 

a)

choke

b)

transformer

c)

solenoid

d)

thermostat

33.

The symbol is

a)

cacitor

b)

fuse

c)

resistor

d)

potentiometer

34.

What does the t/s indicate?

a)

power flow

b)

current

c)

frequency

d)

voltage

35.

Identify the symbole

a)

microphone

b)

loud speaker

c)

buzzer

d)

diode

36.

Identify the instrument

a)

ground tester

b)

voltage detector

c)

insulation detector

d)

fire alarm

37.

A wiring schedule generally contains

a)

type of wire

b)

identification marking

c)

termination details

d)

all the above

38.

suitable cable for TV and video signals

a)

single core

b)

co- axial

c)

fire resisting

d)

armoured cable

39.

The system in an electrical installation that we adopt to protect a person from electric shock :

     

     

    

a)

cabinet bonding

b)

bonding

c)

      earthing

d)

  earth bonding

40.

Polarized capacitors are used in:

      

    

    

 

a)

AC circuits only

b)

AC and DC circuits

c)

DC circuits only

d)

Printed Circuit Boards (PCB) only

41.

It is a coil of low resistance and high inductance:

   

  

  

a)

   fuse

b)

circuit breaker

c)

      capacitor

d)

     choke

42.

It is a mechanical switching device used to cut-off / on the electric supply:

a)

isolator

b)

timer

c)

Thermistor

d)

circuit breaker

43.

Irreversible chemical energy to electrical energy OR one time use batteries are called: 

a)

secondary battery

b)

lithium-ion (Li-Ion) battery

c)

primary battery

d)

nickel-cadmium (NiCad) battery

44.

It is a device which contain a minimum of three sets of contactswith a range of contact configurations: 

    

   

    

a)

contactor

b)

  auxiliary contactor

c)

  relay

d)

rectifier

45.

It is a stationery device which convert AC voltages to higher or lower values without changing the frequency:

a)

rectifier

b)

secondary battery

c)

generator

d)

transformer

46.

A cable having only one copper wire inside the insulation. Used in general industrial wiring installation.   

a)

Screened cables

b)

Mineral cable

c)

Single core cable

d)

Steel wire armoured cable

47.

Is a hard-wearing power cable designed for the supply of mains electricity.

a)

single core cables 

b)

steel wire, armoured (SWA) 

c)

mineral insulated (MI). 

d)

screened cable

48.

Made of copper conductors inside a copper sheath insulated by inorganic magnesium oxide powder. Used in critical fire protection such as alarm circuits, fire pumps, and smoke control systems

a)

mineral insulated (MI). 

b)

single core cables 

 

c)

steel wire, armoured (SWA) 

d)

screened cable

49.

an electrical cable of one or more insulated conductors enclosed by a common conductive layer. Used in security system wire

a)

single core cables 

b)

steel wire, armoured (SWA) 

c)

mineral insulated (MI)

d)

screened cable

50.

The picture is .................

a)

Din rail

b)

Fuse

c)

Terminal block

d)

Connector

51.

The picture is

a)

Diode

b)

Starter

c)

Inductor

d)

Capcitor

52.

The picture is

a)

Lever Switch

b)

Isolator

c)

Toggle Switch

d)

Circuit Breaker

53.

Ingress protection is to

a)

prevent entry by solids, liquids or both

b)

make the continuity check

c)

make polarity test

d)

check conductor insulation for damage

54.

irreversibly transform chemical energy to electrical energy. When the initial supply of reactants is exhausted

a)

Invertor

b)

Rectifier

c)

Primary batteries

d)

Secondary batteries

55.

can be recharged, that is, have their chemical reactions reversed by supplying electrical energy to the cell, restoring their original composition.

a)

Invertor

b)

Rectifier

c)

Primary batteries

d)

Secondary batteries

56.

consists of coils of wire wound on a metal core or frame and is used to convert AC voltages to higher or lower values

a)

Rectifier

b)

Diode

c)

Capacitor

d)

Transformer

57.

The picture is

a)

Push Button Switch

b)

Lever/Latch Switch

c)

Limit Switch

d)

Toggle Switch

58.

The cable shown is

a)

Fibre Optic Cable

b)

Multicore Cable

c)

Mineral Insulated Cable

d)

Screened Cable

59.

used to connect large computer, telephone or television networks to transmit digital pulses of laser light

a)

Ribbon Cable

b)

Screened Cable

c)

Fibre Optic Cable

d)

Multicore Cable

60.

designed to help protect field technicians against accidental electrical shock in the outside plant environment.

a)

Test Lamp

b)

Voltage Detectors

c)

Pilot lamp

d)

Voltmeter

61.

The symbol is used for unit of

a)

frequency

b)

power

c)

resistance

d)

capacitance

62.

basic unit of mater is called

a)

nucleus

b)

atom

c)

proton

d)

electron

63.

If the atom looses electrons it becoes

a)

positive ion

b)

negative ion

c)

neutral ion

d)

nucleus ion

64.

motion of electrons is

a)

Voltage

b)

Current

c)

Resistance

d)

Frequency

65.

Opposition to current flow is

a)

Voltage

b)

Current

c)

Resistance

d)

Frequency

66.

Force moving electrons is

a)

Voltage

b)

Current

c)

Resistance

d)

Frequency

67.

The fuse link type is

a)

NS’ type fuse link

b)

B type fuse link

c)

A type fuse link

d)

C type fuse link

68.

The picture shown is a……………………

a)

soldering iron

b)

heated metal tip

c)

Heat sink

d)

stand

69.

The picture shown is a……………………………………

a)

transformer

b)

overload

c)

contactor

d)

relay

70.

The picture shown is a……………………………………

a)

‘NS’ type fuse link

b)

C type fuse link.

c)

B type fuse link

d)

‘A’ type fuse link.

71.

The picture shown is ………………………………….


a)

multicore cable

b)

fiber optic cable

c)

wire cable

d)

ribbon cable