Cim final exam

Question 1

Oval in a flowchart

Answer 1

Start and endpoints

Question 2

Arrow

Answer 2

The direction of the flow from one step to the next

Question 3

Rectangle

Answer 3

One action in the process. Usually, only one arrow points into the rectangle and one arrow points out of the rectangle.

Question 4

Parallelogram

Answer 4

Input or output

Question 5

Rhombus

Answer 5

Decision Question. More than one arrow points out of the rhombus to indicate more than one option.

Question 6

Closed loop system

Answer 6

A more desirable system that uses feedback from the input to control the output

Question 7

Open Loop

Answer 7

A system that had no means for comparing the output with input for control purposes

Question 8

Six Sigma

Answer 8

A process that eliminates defects from a process. To achieve it, a process must not produce more than 3.4 defects.

Question 9

JIT (Just in time)

Answer 9

Allows parts to be shipped to an assembly line at the time they are needed and not before

Question 10

Kaizen

Answer 10

Continuous improvement that involves all participants.

Question 11

Lean

Answer 11

A way of manufacturing that allows items to be tracked all the way to the customer preserving time in money

Question 12

Digital Sensor

Answer 12

Yes or no answer

Question 13

Analog sensor

Answer 13

Range of values

Question 14

Is an encoder digital or analog

Answer 14

Digital

Question 15

Fixed costs

Answer 15

Do not change over time (Overhead costs)

Question 16

Steps of the design process

Answer 16

Define Problem, Generate concepts, Develop Solution, Construct and test, Evaluate Solution, Present Solution

Question 17

Fused Deposition Modeling (FDM)

Answer 17

Rapid prototyping process in which a filament of wax or polymer is extruded

Question 18

Rapid Prototyping

Answer 18

Computer-controlled additive fabrication

Question 19

Stereolithography (SLA)

Answer 19

A rapid prototyping process that fabricates a part layer-wise by hardening a photopolymer with a guided laser beam

Question 20

Selective Laser Sintering (SLS)

Answer 20

High powered laser that sinters the metal or high density plastic-almost heats up the product right before the molecules deform (can 3d print with metal)

Question 21

Jig

Answer 21

A device that holds and locates a piece of work and guides the tools that operate upon it

Question 22

Fixture

Answer 22

A device designed and built for holding a particular piece of work for machining operations

Question 23

Common Fixture systems

Answer 23

Vice, strap clamps or V-clamps

Question 24

Kinematics

Answer 24

configuration of the robots joints

Question 25

Cartesian robots

Answer 25

3 axis robots

Question 26

Polar Robot

Answer 26

sphere envelope

Question 27

Jointed arm

Answer 27

four joints (basic)

Question 28

Acme screw

Answer 28

have backlash due to high friction between threads

Question 29

Ball screw

Answer 29

has ball bearings between threads to reduce friction

Question 30

Workcells

Answer 30

Grouping of the same machine in one part of a factory doing the same thing

Question 31

FMS

Answer 31

large investment in machines

Question 32

Flexible manufacturing systems

Answer 32

Machine lines supported by Automatically guided vehicles (AGV’s)

Question 33

Non-center cutting

Answer 33

can only be used to cut on the surface (smoother cut)

Question 34

Ball end mill

Answer 34

can plunge fully into an object through it’s surface (rougher cut)

Question 35

2 flute mill

Answer 35

weak and short tool life (2 teeth)

Question 36

4 flute mill

Answer 36

small chips; clogs easier; longer life (4 teeth)

Question 37

HSS

Answer 37

high speed steel

Question 38

Spotting drip

Answer 38

pecking operation (goes in and comes back up-repeat)