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WorksheetsUnit 03 - MEC 302
Total questions: 46
Worksheet time: 4hrs 37mins
In computer, VDU stands for _________________________________.
Visual Display Unit
Very Dangerous Unit
Viewer Discretion Utility
Visual Dimension unit
_______________ is the immediate condition of the surrounding.
ambient
dimension
temperature
pressure
The position in which someone holds their body when standing or sitting.
motion
movement
posture
trail
The joint that connects the hand with the forearm.
hand
wrist
leg
thigh
Injury in the muscle or body parts.
stress
wound
strain
numb
In ergonomic, what do you mean by RSI?
Repetitive Stroke Illness
Remote Station Indicator
Relieving stress infection
Repetitive Strain Injury
The first and the most important thing you do before using an input devices?
check the contacts and terminals
check the indicator
check the size
check the length
The physical contact between the PLC processor and the outside world.
input and output module
LED
transistor
thyristor
The processor is connected to the external field devices using _______________.
opto-coupler
limit switch
push button
cable
A devices that uses an electromagnet to operate a pair of movable contacts from an open position to a closed position or vice versa.
electromagnetic relay
electronic relay
pneumatic relay
hydraulic relay
An electromechanical valve that uses electric current to generate a magnetic field that regulates the opening of fluid flow.
limit switch
push button
relay
solenoid valve
A cylindrical coil of wire acting as a magnet when there is electric current.
solenoid
polaroid
toroid
android
A continuous physical quantity such as voltage and current i.e. 4-20 mA, 0- 10 VDC.
square wave
digital
analog
saw tooth
Individually separate; not continuous quantity i.e. 0 or 1.
square wave
digital
analog
saw tooth
In electrical device, the point of connection is called _________________.
terminal
assembly point
pointer
connector
A device which detects or measures a physical property and records, indicates, or otherwise responds to it
Interface
connector
sensor
scanner
A combined electrical and mechanical system.
electromechanical
hydraulic
pneumatic
piezoelectric
A typ of relay used in the PLC that does not exist in the outside world.
field device
internal relay
solenoid relay
electrical relay
The diagram below represents
pictorial diagram
wiring diagram
ladder diagram
block diagram
The symbol below is :
Open circuit
Light bulb
Connection points
Closed circuit
This PLC symbol stands for _____________.
coil
reset
timer
counter
This PLC symbol stands for _____________.
coil
reset
normally open contact
normally closed contact
This PLC symbol stands for _____________.
coil
reset
normally open contact
normally closed contact
How many bits in one byte?
16 bits
4 bits
8 bits
32 bits
1 word is equal to ____________ bytes
2
4
8
16
A number system which uses a base of 2 is called _____________.
binary
decimal
hexadecimal
roman numeral
A number system which uses a base of 10 is called _____________.
binary
decimal
hexadecimal
roman numeral
From the given ladder diagram, the part labelled with number 1 is called _________________.
Rung
Rail
contact
coil
From the given ladder diagram, the part labelled with number 2 is called _________________.
Rung
Rail
contact
coil
From the given ladder diagram, the part labelled with number 3 is called _________________.
Rung
Rail
contact
coil
From the given ladder diagram, the NC contact "CR3" is called ________________ of coil CR3.
auxiliary
mechanical
passive
switch
The given ladder diagram is equivalent to ___________ gate.
OR
AND
NOT
NOR
The given ladder diagram is equivalent to ___________ gate.
OR
AND
NOT
NOR
The given ladder diagram is equivalent to ___________ gate.
OR
AND
NOT
NOR
The given ladder diagram is equivalent to ___________ gate.
OR
AND
NOT
NOR
The given ladder diagram is equivalent to ___________ gate.
OR
NAND
NOT
NOR
The given ladder diagram is equivalent to ___________ gate.
OR
NAND
NOT
NOR
From the given diagram.
If the value of X = 0, find the value of Y?
1
0
A __________ is a PLC function used to validate the time ranges during which actions can be executed
counter
timer
clock
coil
A __________ is a PLC function used to delay, prolong and control actions over a predetermined period
counter
timer
clock
coil
A __________ is a PLC function used to count pulses.
counter
timer
clock
coil
Normally Open contacts are also called ________________.
examine on
examine off
steady on
steady off
Normally Closed contacts are also called ________________.
examine on
examine off
steady on
steady off
This diagram is called ___________.
truth table
combinational table
number table
input output table
A class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight.
Binary Coded Decimal
Binary
Hexa decimal
Flasting number
__________________ is a combination of Mechanical, Electrical, Electronics and Computer system to develop automated system.
mechatronics
electrical
mechanical
electronics
