WorksheetsUNIT 35
Total questions: 71
Worksheet time: 36mins
Identify component
Push button
rotary switch
lever switch
limit switch
Identify the measurement symbol
Kilo
Mega
Milli
Micro
Secondery batteries example
Lead acid
Lithium-ion
Nicle-cadium
Silver-calcium
Which of these an industrial control System
Printed circuit
Electronic
Soft starter
Programable logic controler
The picture shown is a
PLC
Printed Circuit Board
Soft starter
Circuit breaker
The cable tie shown is
Blank flag identification tie
Tefzel ties
ribbon cable tie
Spiral cable wrap
are designed to apply adjustable voltage to motor & increase voltage gradually over user-selectable acceleration period
Soft Starters
Contactors
PLC
Relays
Unit of measuring capcitance
Ohm
Henry
Farad
Watt
Voltage calculated by Ohms low by
Divide current by resistance
Divide resistance by current
Multiply current by resistance
Add current to resistance
Which ofb the following problems associated with insulation removal
Strands cut out of multicore cables
Nicks in conductors
Stripped plating and scores in solid metal conductors
All the above
A cable having only one copper wire inside the insulation. Used in general industrial wiring installation is
Mineral cable
Screened cables
Solid & Multistrand cable
Single core cable
A cable Used in critical fire protection such as alarm circuit, fire pumps, and smoke control system.
Single core cable
Mineral cable
Steel wire armoured cable
Screened cables
fuse links type fixed to carrier with screws
S type
N type
NS type
A type
A temperature-sensitive resistor used for measuring & controlling temperature up to 300◦C
Thermostat
Thermocouple
Thermistor
Thermos
changes A/C into D/C
Rectifier
Amplifier
Inverter
Conductor
A rectifier is opposite of an ..................... , which changes D/C into A/C
Convertor
Comparator
Inverter
Capcitor
A device that adjusts amount of heating & cooling produced and/or distributed by automatically responding to temperature of environment.
Thermistor
Thermostat
Thermion
Theorm
The picture is
Photo switch
Push- button switch
Toggle switch
Limit switch
The picture is
Single Core-
Screened Cable
Ribbon Cable
Co-Axial Cable-
The type of cable tie is
Marker cable ties
Spiral cable wrap
Self-locking cable ties
Re-sealable cable ties
A device for heating soldering two metal parts together
Abrasive pad
Heater
Clips
soldering iron
When not in use, soldering irons which of the following used
Sand paper
soldering stand
Flux
Brazing
ISO means
International Oil for Standardization
National Organization for Standardization
International Organization for Standardization
International Organization for Science
Identify the symbol
Hazard
Galvanometer
oscilloscope
Potentiometer
A cable composed of two or several small insulated conductors twisted together without common covering
Co-Axial Cable
Ribbon Cable
Multi-Core Cable
Twisted Pair
Shows the detailed connections between components or items of equipment
circuit diagram
schematic drawing
wiring diagram or connection diagram
block diagram
What is the function of Plastic trunking in enclosure
Provide a method to identify wires
Provide support to enclosure
Carry components
provides protection, keeps wires & cables neat & tidy
For overcurrent protection, designed to operate within specified limits
Circuit breakers
Relay
Capcitor
Contactor
The symbol is
Fuse
Resistor
Cpcitor
Relay coil
The capacitor consist of tow metai plates seperated by insulator called
separator
regulator
dielectric
concentric
A ......................... details in which wires laid into the cable form and the position of the wires end
wiring schedule
cable binding
template
run- out sheet
It is a hollow fixed cylinder, several times longer than its diameter, and outside closely wound around with a uniform coil of insulated wire:
choke
transformer
solenoid
thermostat
The symbol is
cacitor
fuse
resistor
potentiometer
What does the t/s indicate?
power flow
current
frequency
voltage
Identify the symbole
microphone
loud speaker
buzzer
diode
Identify the instrument
ground tester
voltage detector
insulation detector
fire alarm
A wiring schedule generally contains
type of wire
identification marking
termination details
all the above
suitable cable for TV and video signals
single core
co- axial
fire resisting
armoured cable
The system in an electrical installation that we adopt to protect a person from electric shock :
cabinet bonding
bonding
earthing
earth bonding
Polarized capacitors are used in:
AC circuits only
AC and DC circuits
DC circuits only
Printed Circuit Boards (PCB) only
It is a coil of low resistance and high inductance:
fuse
circuit breaker
capacitor
choke
It is a mechanical switching device used to cut-off / on the electric supply:
isolator
timer
Thermistor
circuit breaker
Irreversible chemical energy to electrical energy OR one time use batteries are called:
secondary battery
lithium-ion (Li-Ion) battery
primary battery
nickel-cadmium (NiCad) battery
It is a device which contain a minimum of three sets of contactswith a range of contact configurations:
contactor
auxiliary contactor
relay
rectifier
It is a stationery device which convert AC voltages to higher or lower values without changing the frequency:
rectifier
secondary battery
generator
transformer
A cable having only one copper wire inside the insulation. Used in general industrial wiring installation.
Screened cables
Mineral cable
Single core cable
Steel wire armoured cable
Is a hard-wearing power cable designed for the supply of mains electricity.
single core cables
steel wire, armoured (SWA)
mineral insulated (MI).
screened cable
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
mineral insulated (MI).
single core cables
steel wire, armoured (SWA)
screened cable
an electrical cable of one or more insulated conductors enclosed by a common conductive layer. Used in security system wire
single core cables
steel wire, armoured (SWA)
mineral insulated (MI)
screened cable
The picture is .................
Din rail
Fuse
Terminal block
Connector
The picture is
Diode
Starter
Inductor
Capcitor
The picture is
Lever Switch
Isolator
Toggle Switch
Circuit Breaker
Ingress protection is to
prevent entry by solids, liquids or both
make the continuity check
make polarity test
check conductor insulation for damage
irreversibly transform chemical energy to electrical energy. When the initial supply of reactants is exhausted
Invertor
Rectifier
Primary batteries
Secondary batteries
can be recharged, that is, have their chemical reactions reversed by supplying electrical energy to the cell, restoring their original composition.
Invertor
Rectifier
Primary batteries
Secondary batteries
consists of coils of wire wound on a metal core or frame and is used to convert AC voltages to higher or lower values
Rectifier
Diode
Capacitor
Transformer
The picture is
Push Button Switch
Lever/Latch Switch
Limit Switch
Toggle Switch
The cable shown is
Fibre Optic Cable
Multicore Cable
Mineral Insulated Cable
Screened Cable
used to connect large computer, telephone or television networks to transmit digital pulses of laser light
Ribbon Cable
Screened Cable
Fibre Optic Cable
Multicore Cable
designed to help protect field technicians against accidental electrical shock in the outside plant environment.
Test Lamp
Voltage Detectors
Pilot lamp
Voltmeter
The symbol is used for unit of
frequency
power
resistance
capacitance
basic unit of mater is called
nucleus
atom
proton
electron
If the atom looses electrons it becoes
positive ion
negative ion
neutral ion
nucleus ion
motion of electrons is
Voltage
Current
Resistance
Frequency
Opposition to current flow is
Voltage
Current
Resistance
Frequency
Force moving electrons is
Voltage
Current
Resistance
Frequency
The fuse link type is
NS’ type fuse link
B type fuse link
A type fuse link
C type fuse link
The picture shown is a……………………
soldering iron
heated metal tip
Heat sink
stand
The picture shown is a……………………………………
transformer
overload
contactor
relay
The picture shown is a……………………………………
‘NS’ type fuse link
C type fuse link.
B type fuse link
‘A’ type fuse link.
The picture shown is ………………………………….
multicore cable
fiber optic cable
wire cable
ribbon cable
