WorksheetsENST 2382 Mid Term Review
Total questions: 60
Worksheet time: 30mins
A limit switch is an input switch that senses the position of a machine member by mechanical means and converts the position into a(n) ____________-.
Electrical Signal
Logic Bit
Analog Signal
Control Circuit
Pushbutton switches are manual discrete logic output devices.
True
False
Four types of manual discrete logic output devices are _______, audible alarms, message displays, and LED displays.
Pushbuttons
Selector Switches
Indicator Lamps
Emergency Stops
An FMS reduces cost because ______________.
One set of equipment can produce multiple products
Set-up time is reduced
Small batch runs of each product can be produced
All of the above
A pick and place automative system is used for material handling applications as well as sequential assembly operations.
True
False
Mechatronics is a field of study that focuses on the integration of mechanical, electrical, fluid, and computer technologies to control ___________.
PLCs
FMS
Machine Movements
Production
A series of steps or actions machine components are programmed to perform is called a ___________.
Program
Series
Machine Sequence
None of the above
Directional Control Valves move in two directions by using __________.
One solenoid and a return spring
Two solenoids alone
Two solenoids with return springs
Any of the above
Automated assembly stations use robots or PLC-controlled pick and place devices to _____________.
Assemble Parts
Transport Parts
Store Parts
Remove Parts
A red lens on an indicator light typically light represents ___________.
Attention
Normal condition
Safe condition
Danger or fault condition
Modern machine operators have much more valuable roles in manufacturing because they _______________.
Make more money
Perform additional functions
Are better educated
Are computer literate
Gloves should not be worn around machinery because they can get caught in the moving components and pull a hand into the machine.
True
False
Mechatronics operator safety rules include __________.
Perform a lockout/tagout on all power sources before starting maintenance
Remove robot teach pendants from the work area
Leave all tools out of the work area
A and B
Every person working on a machine must include his or her own ___________ to an electrical lockout/tagout device.
Tag
Signature
Lock
Hasp
The very first step in starting up an automated machine is _________.
Remove lockout/tagout devices
Power up the machines
Perform safety checks
Place system in auto mode
An emergency stop falls into which category of stop?
Category 0
Category 1
Category 2
Category 3
A pneumatic lockout valve vents downstream air pressure to the atmosphere when it is ___________.
Open
Partially Open
Closed
All of the above
A two-position detented value's _______ holds it in position after the manual override is pressed and released.
Spring
Detent
Clamp Collar
Air Supply
_____________ mode is most often used during machine setup and maintenance to test various parts of the machine and make adjustments.
Automatic
Jog
Manual
Cycle
Mechanical stops can be used to accurately position a pneumatic cylinder.
True
False
To adjust actuator speed using flow control valves, turn the flow control valve______________.
CW to decrease speed, CCW to increase speed
CCW to decrease speed, CW to increase speed
CCW to decrease speed, CCW to increase speed
CW to decrease speed, CW to increase speed
These three sensors all have short sensing ranges and sense the presence of an object as well as different types of material.
Hall effect, photoelectric, and ultrasonic
Hall effect, inductive, and photoelectric
Hall effect, inductive, and capacitive
Hall effect, capacitive, and photoelectric
Limit switches should be adjusted so the contacts open or close just at the point ___________.
Where the actuator stop is located
Slightly before where the actuator stop is located
Slightly after where the actuator stop is located
A or B
A motor that moves both forward and reverse requires ___________.
A bidirectional motor starter
A forward and a reverse motor starter
No motor starter
None of the Above
Digital I/O interface modules connect a PLC's inputs and outputs to terminal blocks on printed circuit boards via a special pre-wired cable.
True
False
A powered parts feeder typically includes a ________, a cylinder to push the part out to the pickup location, and a sensor to indicate when there are no more parts.
Gravity Feed Chute
Conveyor
Robot
Pick-and-Place Manipulator
The gripping or holding force of the vacuum gripper relies on _________.
Cup Size
Amount of vacuum applied
The part being gripped
A and B
Pick and Place manipulators are non-servo devices that use pneumatic actuators to move parts from one place to another.
True
False
Three types of material feeding systems used in manufacturing are ASRS, ________, and non-servo pick-and-place manipulators.
Automatic Parts Feeder
Pneumatic Cylinders
Servo Robot
AGV
A vacuum switch converts a sensed pressure or vacuum into a(n) _________ signal that can be used as an input to a controller.
Analog
Remote
Discrete
Input
A typical powered parts feeder includes a single-solenoid DCV, a __________ to dispense parts, and a chute to hold the parts.
Single-acting cylinder
Double-acting cylinder
Spring-return cylinder
None of the above
The three most common operating modes for a pick and place feeding station are _________.
Auto, Manual, Reset
Auto, Manual, FMS
Manual, FMS, Reset
Auto, Reset, FMS
A 2-axis pick and place manipulator has two actuators, which typically more in the ________ planes.
Y and Z
X and Y
X and Z
None of the above
A pick and place feeding station typically combines the use of a powered parts feeder and a __________.
Magazine
Conveyor
Robot
Pick and Place Manipulator
Shock absorbers convert the kinetic energy at an actuator into ________ energy that is transferred through its body to the atmosphere.
Electrical
Thermal
Magnetic
Mechanical
A tolerance is the acceptable range for a physical part dimension.
True
False
An ultrasonic sensor is an example of a(n) _______ sensor.
Discrete
Analog
Capacitive
Photoelectric
A non-servo electric traverse axis has a motor that is operated by a _________.
PLC
Ball Screw
Reversable Motor Starter
Clutch
To determine the distance of an object from the sensor, an ultrasonic sensor uses the transmission and ________ of ultrasonic waves.
Deflection
Absorption
Reflection
Modulation
In a multi-plate slip clutch assembly, which components supply the slip?
The Larger Discs
Friction Pods
The Smaller Discs
Torque Pins
When adjusting a synchronous drive belt, pulleys are inspected for cleanliness and __________.
Slip
Locking Nuts
Date of Manufacturing
Wear
A non-servo traverse axis typically uses a limit switch along with a hard stop to signal the PLC to stop the motor and _________.
Sequence another step
Stop the sequence
Reverse the motor
End the cycle
A synchronous drive belt is often used to transmit power for application that require __________.
High torque
Low Torque
Precision Positioning
Little or no position
Operator panels traditionally use _________ to select the mode of operation.
BCD Switches
Pushbuttons
Selector Switches
Toggle Switches
A non-servo traverse axis includes ________ used as end-of-travel sensors.
Proximity Sensors
Ultrasonic Sensors
Limit Switches
Capacitive Sensors
Go/No-Go gauging stations can inspect parts while stationary or while in motion.
True
False
How does a part reject module know that a part should be rejected?
A signal from another station
A signal from an operator
A test performed by the station
It rejects every other part
The home position for the traverse axis is when it is fully retracted to its _______ position.
BOT
EOT
Transfer
Window
A capacitive sensor creates a(n) _______ find that is used to sense when a part comes into range.
Electrostatic
Magnetic
Electric
Light
Fiber optic sensors are _________ sensors with fiber optics filaments attracted to the sensor to send and receive light.
Inductive
Photoelectric
Capacitive
Retro-reflective
When a stepper motor is mounted so the shaft is parallel to the indexing table, a ______ drive is used between the motor and the indexing table.
Stepper Gear
Helix Gear
Worm Gear
Mesh Gear
Rotary indexing tables can be powered by _________ drives.
Pneumatic
Electric
Hydraulic
All of the above
The _______ and photoelectric sensors are both capable of operating at longer ranges.
Capacitive
Inductive
Proximity
Ultrasonic
Three types of electro-pneumatic bales are 3-position spring centered, 2-position detented, and ____________.
1-position spring centered
3-position spring return
1-position spring detented
2-position spring return
_______ instructions can only be used in immediate mode to perform a system function.
System Program
PLC
Operator
Cycle
_________ control the velocity and position data that result in movement of the motor.
PLC Instructions
Capacitive Instructions
Operator Instructions
Motor Instructions
A ________ is a mechanical device that uses either mechanical, magnetic, hydraulic, pneumatic, or friction connections to engage and disengage two rotating members.
Motor
Rotary Indexing Table
Clutch
Cylinder
__________ require an amplifier to increase the signal and output a larger signal.
Directional Control Valves
Fiber Optic Sensors
Rotary Indexing Tables
Pick and Place Feeding Stations
A rotary table's __________ is often an inductive sensor because the table is metal and it is a low cost sensors.
Ultrasonic Sensor
Laser Sensor
Photoelectric Sensor
Homing Sensor
A clutch in a traverse axis is not designed to slip at a preset torque level and protect the motor when the carriage drives into the hard stop.
True
False
