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MSSC Maintenance 4 Flashcards | StudBud
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MSSC Maintenance 4
MSSC Maintenance 4
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1
Faults are most likely to occur where in a robotic system?
Sensor/actuator interface
Drive motors
Gripper
Teach pendant
2
The Rockwell CCW program has 7 components: menu bar, toolbar, and status bar. What is the name of another component?
Crow bar
Programming bar
Flat bar
Toolbox
3
Safety interlocks are used in machines to do what?
They prevent a machine from starting or shut it down
All of the above
They make sure guards are in place
They make sure pressures and temperatures are correct
4
Which robots use an X-Y-Z coordinate system?
Cartesian
Articulated
Gantry
SCARA
5
Each output instruction is assigned to how many output terminals?
Multiple
Two
One
Three
6
What contacts need to be used to make sure seal-in logic is working properly and safe?
Auxillary contacts
Positive / Negative contacts
Motor starter coil
Logic contacts
7
What is one advantage of Gas tungsten arc welding?
Accuracy
Slow process
Vertical welds
Only product horizontal welds
8
The welding surface must be smooth, clean, and grease free. How should grease be removed from the surface?
Wipe it off
Apply a degreaser
Soap and water
Apply water
9
The input diagram includes input power wiring, PLC input wiring, power rail, PLC input terminal and what else?
Input devices
Structure devices
Feedback devices
Output devices
10
Technicians should have their own _____ that contain their identification and individual keys
Lunch boxes
Teach pendant
Power supply
Lockout/tagout devices
11
How are different corner joints created?
Moving the weld and the pieces
Moving the weld to cover more of the pieces
Moving the pieces so they touch less or more
Changing the angle of the corner
12
What can be controlled on the panel of GMAW welding system controls?
Amps, gases feed, power
Amps, flux speed, power
Voltage, wire feed, power
Voltage, flux feed, power
13
Which is an example of the use of safety interlocks?
Machine power downs
Machine runs after all guards are in place
Machine guards are not important
Machine runs when turned on
14
What are the axes of a robot named?
Shoulder, elbow, fingers
Elbow, wrist, fingers
Shoulder, elbow, waist
Head, shoulder, knees
15
These robots are used in the food, pharmaceutical, and electronics industries.
SCARA
Articulated
Gantry
Delta
16
A magnaflux test is used to show what flaw in ferrous metal welds?
Hardness
Flatness
Magnetism
Cracks in the surface
17
What is the definition of a fillet weld?
Joins only corner joints
Joins butt joints
Joins two pieces of metal to form an angle
Divides two pieces formally welded together
18
Seal-in logic keeps the output in what state when input is removed?
Hold
On
Off
Load
19
Which PLC program has parallel rungs like a wiring drawing?
Sequential Function Chart
Instruction list
Structure text
Ladder logic
20
Which of the following is a disadvantage of spot welding?
It uses an explosive combination of gases
It can only be used to make horizontal welds
It only works on thin metal
It is very slow
21
What is another name for gas metal arc welding?
Metal inert gas (MIG) welding
TIG welding
Arc welding
Flux less welding
22
What is another name for making a weld?
Bar clamping
Spot weld
Running a bead
Heat clamping
23
When hard finished material needs to formed or aligned, use a _____ to prevent damage to the surface
Brass hammer
Sledge hammer
Hand grinder
Chipping hammer
24
Rules protect the operator and the robot. Operator must complete safety system and training, locate E-stops, and ______
Monitor the material handling of the robot
Complete a quality check on each part produced
Maintain and monitor the parts being produced
Monitor the controls and nearby personnel
25
Assigning the input instructions the same address as the output instruction will allow how many step-sequence programs?
Three
Two
Multiple
Single
26
Heating two metal edges to a molten state and allowing them to combine is welding. What are positive aspects of welding?
Two pieces become one; expensive method of fastening
Two pieces become one and can be disassembled easily
Two pieces become one; strongest method of fastening
Two pieces become one; weaker than base metal
27
What is continually fed during the gas metal arc welding process?
Electrodes
Wire
Flux
Gases
28
What does the abbreviation NC stand for?
Normally Closed
Normally Controlled
Naturally Closed
Not Controlled
29
______ should be stored a minimum of 25 feet (8 meters) from combustion points?
Micrometers
Machine tools
Oxygen cylinders
Welding rods
30
When working with a power tool that requires the use of a protective face shield, an employee must ______
Wear a bandana if a face shield is not available
At least have one in their work area even if they don't wear it
Not use the tool until they are wearing a face shield
Use safety glasses instead of a face shield
31
What is the most basic operation of a PLC?
Controlling conveyor systems
Controlling machine sequence
Controlling solenoid valves
Operating solenoid valves
32
The only person authorized to remove a lockout/tagout device is _______
The person who installed it
The supervisor
The quality technician
The next person on shift
33
To keep a gas cylinder from being accidentally knocked over, it should be _____
Securely chained
Stored with the regulator in place
Stored on its side
Moved to a location way from heavy foot traffic
34
What is one characteristic of a good weld?
Less expensive
Limited pitting of the weld
Appearance
Speed weld was created
35
What is the most common clamping device?
Adjustable wood clamp
Bar clamp
Spring clamp
C-clamp
36
Once the project is downloaded into the PLC's memory, what is the next step of operation?
Place the PLC in TEST mode
Place the PLC in RUN mode
Place the PLC in DOWNLOAD mode
Place the PLC in ACCEPT mode
37
What is the purpose of a butt joint?
Shape the surface area of the pieces
Increase the length of the original piece
Create a corner connetion
Create a T shape connection
38
Which PLC Program Language evolved from the computer language Pascal?
Structure text
Ladder logic
Sequential Function Chart
Instruction list
39
The following graphic shows an example of what type of logic element?
NOR
NAND
AND
OR
40
What are input and output terminals that never change called?
Permanent addresses
Terminal addresses
Dynamic addresses
Absolute addresses
41
How does a safety interlock prevent an action?
Interlocks require three actions to take place prior to working
Interlocks are safety blocks
Interlock works only when another action has taken place
Interlock works only when activated
42
What engages the wire feed on the GMAW welding system controls?
Speed control knob
Tension control knob
Gun's trigger
Control knob
43
What do symbolic I/O addresses do for a program?
Make it more difficult to read
Make it easier to read
Provide symbols in place of IO addresses
Make it more difficlut to troubleshoot
44
What must be done on two pieces of a butt joint before being welded?
Cut each square so the final part will be flush
Cut a groove so the groove weld can be completed
Cut each square so the surface will be square
Cut a groove so the final piece will be angled
45
Reverse flow check valves are connected to gas supply lines to ______ of oxygen and fuel gases
Prevent the co-mingling
Increase the heat
Check the level
Monitor the flow rate
46
A PLC is classified by their enclosure. What is the other enclosure besides I/O chassis?
Interior mount
Interior chassis
Anchor mount
Brick style
47
Magnaflux testing is also known as _____ testing
X-ray
Magmaflex
Magnetic-particle
Dye penetrant
48
PLC address identifies a location here, where the status of an input, output (memory or instruction statuses) is stored.
Terminal
Memory
Input
Output
49
Which type of welding used a power supply and 2 arms containing electrodes?
Spot welding
Oxy-acetylene welding
TIG welding
MIG welding
50
Setting the gas pressure includes a pressure gauge and what other gauge?
Flow control
Needle
Metric
Flow
51
______ is required at all times in designated areas to defend against workplace hazards
Proper PPE
Thick clothing
An ID badge
Authorization
52
Which item below is used in oxy-acetylene welding?
Wire feed
Electricity
Pure oxygen
Arc between electrodes
53
Gas metal arc welding is similar to SMAW but has a ______ fed electrode wire
Complex
Short
Continuously
Fast
54
Jogging a servo robot means ______
Stopping the robot in place
To put the robot in a safe position
Manually moving the robor arm to a new position without a program
Preparing the robot to shutdown
55
Internal output addresses are known as memory coils, internal variables, and what else?
Internal coils
Maximum coils
Memory bits
Output variables
56
What is the purpose of flux in shielded metal arc welding?
Cleans the electrodes
Cleans and protects the base material
Provides a filler material
Cleans the electrodes and base material
57
Which welding joint is completed by jointing the ends of two pieces?
Corner
Butt
Lap
T-Joint
58
PLC instructions - control a switch inside it's output module or main enclosure turning power on/off at output terminal.
Output coil
Input coil
Reverse coil
Direct coil
59
Robots are classified into four groups: Type of motion, servo or non-servo, number of axes, and _____
Stationary or mobile
Linear or rotational
Hyrdaulic or pneumatic
Pneumatic or electric
60
Which PLC enclosure allows for the most expansion of I/O modules?
Brick style
I/O chassis style
Anchor mount
Interior chassis
61
Which welding method includes low cost, commonly used outdoors, and doesn't use electricity?
Shielded metal arc
Spot
Arc
Oxy-acetylene
62
This provides the interface between the PLC and the starter contacts in a magnetic motor starter.
Contact
Timer
Switch
Solenoid
63
Servo Robots use Pmove or point move to program the robots movements. The points are most often recorded using a ______
Teach pendant
Controller
PC file
Display Screen
64
Oxy-Acetylene welding uses which gas to increase flame temperature?
Oxygen
Acetylene
Neither increase the flame temperature
Both oxygen and acetylene increase temperature
65
How does a PLC control different types of machines and processes?
By wireless control
By programming
By Bluetooth
By moving wires
66
What material holds moisture and can explode if directly welding on it?
Concrete
Ferrous metals
Brass
Steel
67
What is one of the most common PLC applications?
Start/stop inspection controls
Start/stop production conveyors
Start/stop material feeders
Start/stop constant electric motor
68
A robotic system _____ backup typically has a two year life expectancy
Lithium battery
Solid state drive
Servo motors
Motor driver
69
3 factors to determine welder settings: The type of metal being welded, the thickness of the metal, and _______
Speed value of wire insert
Voltage settings
Mounting position of metal
Purity setting of gases
70
To ensure the power remains off during a repair is the purpose of
A light switch
Lockout/tagout procedure
Caution tape
The E-stop
71
Which type of welding is considered as quick and easy to complete?
Arc
Shielded metal arc
Spot
Oxy-acetylene
72
PLC executes a 3-step process called scan cycle. Scan cycle includes Input scan and Output scan, what is the third step?
Feedback scan
Program scan
Process scan
Message scan
73
The horizontal line to the right of each input device represents what part of an I/O diagram?
PLC input terminal
Power rail
PLC input wiring
Input power wiring
74
When multiple shifts are working on down equipment, You should verify energy state, then change locks as part of the ___
Power test
Lockout/tagout procedure
Reactive maintenance
Security drill
75
What is the definition of a tack weld?
Final weld of thin pieces
Decorative weld
Small temporary weld
Weld used in moisture area
76
Which welding joint is used to create a ladder?
T-joint
Corner
Lap
Butt
77
In Rockwell's CCW software, a discrete variable has a Data Type of this?
UINT
SINT
UDINT
BOOL
78
What controls fluid power motors?
PLC structure control
Electric magnetic starter
Directional control valve
Fluid motor control
79
Which PLC Program Language resembles rungs of a ladder?
Structure text
Sequential Function Chart
Ladder logic
Instruction list
80
What is another name for Gas tungsten arc welding?
TIG welding
Metal inert gas (MIG) welding
Flux less welding
Arc welding
81
________ grippers are used to pick up flat parts that cannot easily be grasped
Vacuum
Sticky
Cutting tool
Pincher
82
Which type of weld hold the pieces so they overlap each other?
Butt
T-joint
Corner
Lap
83
A magnetic motor starter provides a safe method to channel the flow of current to the electric motor by acting as ______
Solenoid
Switch
Timer
Valve
84
What is the definition of shielded metal arc welding?
Creates a joint between oxygen and acetylene
Creates an arc between oxygen and acetylene
Creates an arc between an electrode and a workpiece
Creates a joint between two gases
85
What operation must happen to enter an address symbol?
Opening the symbol file and entering a name
Create a file of symbols to use
Picking a symbol form the task bar
Typing the name
86
Setup area is one of the catergories of welding safety rules. What is the emergency component of the setup area?
Knowledge of the fire extinguisher location
Avoiding breathing welding fumes
Inspection of the equipment
Clean and dry area
