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Worksheets

ENST 2382 Mid Term Review

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

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) ____________-.

a)

Electrical Signal

b)

Logic Bit

c)

Analog Signal

d)

Control Circuit

2.

Pushbutton switches are manual discrete logic output devices.

a)

True

b)

False

3.

Four types of manual discrete logic output devices are _______, audible alarms, message displays, and LED displays.

a)

Pushbuttons

b)

Selector Switches

c)

Indicator Lamps

d)

Emergency Stops

4.

An FMS reduces cost because ______________.

a)

One set of equipment can produce multiple products

b)

Set-up time is reduced

c)

Small batch runs of each product can be produced

d)

All of the above

5.

A pick and place automative system is used for material handling applications as well as sequential assembly operations.

a)

True

b)

False

6.

Mechatronics is a field of study that focuses on the integration of mechanical, electrical, fluid, and computer technologies to control ___________.

a)

PLCs

b)

FMS

c)

Machine Movements

d)

Production

7.

A series of steps or actions machine components are programmed to perform is called a ___________.

a)

Program

b)

Series

c)

Machine Sequence

d)

None of the above

8.

Directional Control Valves move in two directions by using __________.

a)

One solenoid and a return spring

b)

Two solenoids alone

c)

Two solenoids with return springs

d)

Any of the above

9.

Automated assembly stations use robots or PLC-controlled pick and place devices to _____________.

a)

Assemble Parts

b)

Transport Parts

c)

Store Parts

d)

Remove Parts

10.

A red lens on an indicator light typically light represents ___________.

a)

Attention

b)

Normal condition

c)

Safe condition

d)

Danger or fault condition

11.

Modern machine operators have much more valuable roles in manufacturing because they _______________.

a)

Make more money

b)

Perform additional functions

c)

Are better educated

d)

Are computer literate

12.

Gloves should not be worn around machinery because they can get caught in the moving components and pull a hand into the machine.

a)

True

b)

False

13.

Mechatronics operator safety rules include __________.

a)

Perform a lockout/tagout on all power sources before starting maintenance

b)

Remove robot teach pendants from the work area

c)

Leave all tools out of the work area

d)

A and B

14.

Every person working on a machine must include his or her own ___________ to an electrical lockout/tagout device.

a)

Tag

b)

Signature

c)

Lock

d)

Hasp

15.

The very first step in starting up an automated machine is _________.

a)

Remove lockout/tagout devices

b)

Power up the machines

c)

Perform safety checks

d)

Place system in auto mode

16.

An emergency stop falls into which category of stop?

a)

Category 0

b)

Category 1

c)

Category 2

d)

Category 3

17.

A pneumatic lockout valve vents downstream air pressure to the atmosphere when it is ___________.

a)

Open

b)

Partially Open

c)

Closed

d)

All of the above

18.

A two-position detented value's _______ holds it in position after the manual override is pressed and released.

a)

Spring

b)

Detent

c)

Clamp Collar

d)

Air Supply

19.

_____________ mode is most often used during machine setup and maintenance to test various parts of the machine and make adjustments.

a)

Automatic

b)

Jog

c)

Manual

d)

Cycle

20.

Mechanical stops can be used to accurately position a pneumatic cylinder.

a)

True

b)

False

21.

To adjust actuator speed using flow control valves, turn the flow control valve______________.

a)

CW to decrease speed, CCW to increase speed

b)

CCW to decrease speed, CW to increase speed

c)

CCW to decrease speed, CCW to increase speed

d)

CW to decrease speed, CW to increase speed

22.

These three sensors all have short sensing ranges and sense the presence of an object as well as different types of material.

a)

Hall effect, photoelectric, and ultrasonic

b)

Hall effect, inductive, and photoelectric

c)

Hall effect, inductive, and capacitive

d)

Hall effect, capacitive, and photoelectric

23.

Limit switches should be adjusted so the contacts open or close just at the point ___________.

a)

Where the actuator stop is located

b)

Slightly before where the actuator stop is located

c)

Slightly after where the actuator stop is located

d)

A or B

24.

A motor that moves both forward and reverse requires ___________.

a)

A bidirectional motor starter

b)

A forward and a reverse motor starter

c)

No motor starter

d)

None of the Above

25.

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.

a)

True

b)

False

26.

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.

a)

Gravity Feed Chute

b)

Conveyor

c)

Robot

d)

Pick-and-Place Manipulator

27.

The gripping or holding force of the vacuum gripper relies on _________.

a)

Cup Size

b)

Amount of vacuum applied

c)

The part being gripped

d)

A and B

28.

Pick and Place manipulators are non-servo devices that use pneumatic actuators to move parts from one place to another.

a)

True

b)

False

29.

Three types of material feeding systems used in manufacturing are ASRS, ________, and non-servo pick-and-place manipulators.

a)

Automatic Parts Feeder

b)

Pneumatic Cylinders

c)

Servo Robot

d)

AGV

30.

A vacuum switch converts a sensed pressure or vacuum into a(n) _________ signal that can be used as an input to a controller.

a)

Analog

b)

Remote

c)

Discrete

d)

Input

31.

A typical powered parts feeder includes a single-solenoid DCV, a __________ to dispense parts, and a chute to hold the parts.

a)

Single-acting cylinder

b)

Double-acting cylinder

c)

Spring-return cylinder

d)

None of the above

32.

The three most common operating modes for a pick and place feeding station are _________.

a)

Auto, Manual, Reset

b)

Auto, Manual, FMS

c)

Manual, FMS, Reset

d)

Auto, Reset, FMS

33.

A 2-axis pick and place manipulator has two actuators, which typically more in the ________ planes.

a)

Y and Z

b)

X and Y

c)

X and Z

d)

None of the above

34.

A pick and place feeding station typically combines the use of a powered parts feeder and a __________.

a)

Magazine

b)

Conveyor

c)

Robot

d)

Pick and Place Manipulator

35.

Shock absorbers convert the kinetic energy at an actuator into ________ energy that is transferred through its body to the atmosphere.

a)

Electrical

b)

Thermal

c)

Magnetic

d)

Mechanical

36.

A tolerance is the acceptable range for a physical part dimension.

a)

True

b)

False

37.

An ultrasonic sensor is an example of a(n) _______ sensor.

a)

Discrete

b)

Analog

c)

Capacitive

d)

Photoelectric

38.

A non-servo electric traverse axis has a motor that is operated by a _________.

a)

PLC

b)

Ball Screw

c)

Reversable Motor Starter

d)

Clutch

39.

To determine the distance of an object from the sensor, an ultrasonic sensor uses the transmission and ________ of ultrasonic waves.

a)

Deflection

b)

Absorption

c)

Reflection

d)

Modulation

40.

In a multi-plate slip clutch assembly, which components supply the slip?

a)

The Larger Discs

b)

Friction Pods

c)

The Smaller Discs

d)

Torque Pins

41.

When adjusting a synchronous drive belt, pulleys are inspected for cleanliness and __________.

a)

Slip

b)

Locking Nuts

c)

Date of Manufacturing

d)

Wear

42.

A non-servo traverse axis typically uses a limit switch along with a hard stop to signal the PLC to stop the motor and _________.

a)

Sequence another step

b)

Stop the sequence

c)

Reverse the motor

d)

End the cycle

43.

A synchronous drive belt is often used to transmit power for application that require __________.

a)

High torque

b)

Low Torque

c)

Precision Positioning

d)

Little or no position

44.

Operator panels traditionally use _________ to select the mode of operation.

a)

BCD Switches

b)

Pushbuttons

c)

Selector Switches

d)

Toggle Switches

45.

A non-servo traverse axis includes ________ used as end-of-travel sensors.

a)

Proximity Sensors

b)

Ultrasonic Sensors

c)

Limit Switches

d)

Capacitive Sensors

46.

Go/No-Go gauging stations can inspect parts while stationary or while in motion.

a)

True

b)

False

47.

How does a part reject module know that a part should be rejected?

a)

A signal from another station

b)

A signal from an operator

c)

A test performed by the station

d)

It rejects every other part

48.

The home position for the traverse axis is when it is fully retracted to its _______ position.

a)

BOT

b)

EOT

c)

Transfer

d)

Window

49.

A capacitive sensor creates a(n) _______ find that is used to sense when a part comes into range.

a)

Electrostatic

b)

Magnetic

c)

Electric

d)

Light

50.

Fiber optic sensors are _________ sensors with fiber optics filaments attracted to the sensor to send and receive light.

a)

Inductive

b)

Photoelectric

c)

Capacitive

d)

Retro-reflective

51.

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.

a)

Stepper Gear

b)

Helix Gear

c)

Worm Gear

d)

Mesh Gear

52.

Rotary indexing tables can be powered by _________ drives.

a)

Pneumatic

b)

Electric

c)

Hydraulic

d)

All of the above

53.

The _______ and photoelectric sensors are both capable of operating at longer ranges.

a)

Capacitive

b)

Inductive

c)

Proximity

d)

Ultrasonic

54.

Three types of electro-pneumatic bales are 3-position spring centered, 2-position detented, and ____________.

a)

1-position spring centered

b)

3-position spring return

c)

1-position spring detented

d)

2-position spring return

55.

_______ instructions can only be used in immediate mode to perform a system function.

a)

System Program

b)

PLC

c)

Operator

d)

Cycle

56.

_________ control the velocity and position data that result in movement of the motor.

a)

PLC Instructions

b)

Capacitive Instructions

c)

Operator Instructions

d)

Motor Instructions

57.

A ________ is a mechanical device that uses either mechanical, magnetic, hydraulic, pneumatic, or friction connections to engage and disengage two rotating members.

a)

Motor

b)

Rotary Indexing Table

c)

Clutch

d)

Cylinder

58.

__________ require an amplifier to increase the signal and output a larger signal.

a)

Directional Control Valves

b)

Fiber Optic Sensors

c)

Rotary Indexing Tables

d)

Pick and Place Feeding Stations

59.

A rotary table's __________ is often an inductive sensor because the table is metal and it is a low cost sensors.

a)

Ultrasonic Sensor

b)

Laser Sensor

c)

Photoelectric Sensor

d)

Homing Sensor

60.

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.

a)

True

b)

False