MSSC test 1
The mechanical advantage of this lever is 2:1. How much effort force (FE) would have to be applied to balance the lever, if the load equaled 20 lbs? - 5 lbs - 10 lbs - 20 lbs - 2 lbs
- 10 lbs
Rotary power = (torque × speed) / constant. What is the power with a torque (T) of 10 N and a speed (n) of 100 RPM using the constant of 9.55? - 955 - 95.5 - 104.70 - 9550
- 104.70
One ton-force is equal to __________ pound-force. - 100 - 200 - 1000 - 2000
- 2000
What is the number of teeth on the gear that is turning 1275 rpm, when the driven gear has 90 teeth and is turning 425 rpm? - 26 teeth - 30 teeth - 60 teeth - 142 teeth
- 30 teeth
Plastics typically consume __________ of petroleum produced worldwide. - 1% - 4% - 10% - 15%
- 4%
Horsepower is the US customary system of measure for mechanical power. One horsepower equals __________ foot-pounds per second. - 600 - 500 - 550 - 525
- 550
__________ is not commonly used to produce mass production products, but it is often used to create functional prototypes, mold and mold inserts, and customized parts technology is getting there. - Additive manufacturing - Subtractive manufacturing - The assembly line - Customized manufacturing
- Additive manufacturing
An example of a(n) __________ is 3D printing. - Additive manufacturing process - Subtractive manufacturing process - Machining process - Artificial intelligence process
- Additive manufacturing process
Smart fabrics, engineered tissue, fabricated cells, fuels, and improved medicines using nanotechnology are just a few examples of __________. - Technical materials - Advanced parts - Advanced materials - Small scale products
- Advanced materials
How can friction in machines be reduced? - Make sure all parts are aligned - Replace worn parts - Adding lubrication - All of the above
- All of the above
Which of the following is true of a PLC? - Makes decisions based on a custom program - Continuously monitors the state of input devices - Controls the state of output devices - All of the above
- All of the above
Brass and bronze are examples of __________. - Non-ferrous metals - Ferrous metals - Alloys - Composites
- Alloys
Which of the following processes is an electrochemical process that creates a layer of oxide on non-ferrous metal parts to protect them from corrosion? - Painting - Powder coating - Plating - Anodizing
- Anodizing
Advantages of implementing __________ include reduced production costs, rapid decision making, and expanded operation capabilities. - Motivational speaking - Artificial intelligence - Data collection - Artificial analysis
- Artificial intelligence
__________ instructions can be delivered step-by-step, in real-time and in context. - Virtual reality - Manufacturing reality - Additive reality - Augmented reality
- Augmented reality
__________ is a live direct or indirect view of a physical, real-world environment whose elements are overlaid by computer-generated sensory input such as sound, video, graphics, or GPS data. - Augmented reality - Virtual reality - Manufacturing reality - Additive reality
- Augmented reality
__________ can be connected to data systems to automatically coordinate material flow to and from assembly processes which eliminates the need to check in and out materials. - Maintenance repairs - Automated storage and retrieval systems - Manual MH systems - Fork trucks
- Automated storage and retrieval systems
Barcodes, RFID, NFC, and machine vision are all examples of what type of technology? - Artificial intelligence - Machine learning - Edge and fog computing - Automatic Identification and Data Collection
- Automatic Identification and Data Collection
__________ can be used in many applications including book storage in libraries, product storage in warehouses, and tooling storage in factories. - Designer programs - Automatic welders - Automatic storage and retrieval systems - Stand-alone machines
- Automatic storage and retrieval systems
__________ require programming to operate, but no human intervention during operation. - Fork trucks - Tugs and carts - Manual robots - Autonomous mobile robots
- Autonomous mobile robots
In addition to material handling, __________ can be also used for repetitive processes in high volume operations. - Autonomous robots - Forklifts - Pickers - Sorting machines
- Autonomous robots
The ability to sort products by type by scanning a barcode is an advantage of using a(n) __________. - Audit checklist - Barcode reading system - Coordinate measuring machine - Electronic sensors
- Barcode reading system
A dirty lens is the most likely cause of a(n) __________. - Barcode programming error - Bright flashlight - Barcode scanning failure - Bad cmm measurement
- Barcode scanning failure
Two key reasons that CNC machines are preferred over manually operated machines are: - Newer, faster - Reliable, easy to operate - Flexible, modern technology - Better quality parts, lower production costs
- Better quality parts, lower production costs
The basic function of a __________ is to change rotary motion to linear motion. - Cam key - Bearing - Cam - Camber
- Cam
Rise, dwell, and return are parts of the __________. - Rotary power calculation - Third class lever - Key that holds the cam - Cam motion cycle
- Cam motion cycle
__________ use metals, plastics, and other materials in combinations of two or more to obtain the desired properties. - Composites - Aluminum alloys - Refractory ceramics - Ferrous metals
- Composites
__________ is a reddish, malleable metal that conducts electricity well and resists weathering. - Steel - Cast iron - Aluminum - Copper
- Copper
Metal separation is the process of __________. - Sorting metals from other products for recycling - Removing metals, such as iron, from ore - Cutting away unneeded metal from stock - Breaking the bond between two pieces of metal to disassemble an assembly
- Cutting away unneeded metal from stock
A(n) __________ communication system uses IoT to monitor smart sensors and output devices to determine when they are about to fail. - Cloud - Cyber-Physical - Ethernet - Arpanet
- Cyber-Physical
What data can some smart sensors communicate so they can be adjusted or replaced before they fail? - Data about their own health - Data about the proximity of nearby objects - Data about the amount of water vapor in the atmosphere - Data about the environmental temperature
- Data about their own health
In manufacturing, predictive maintenance, automated quality testing, and product design programs use __________ to make improvements. - Office tools - Electronic sensors - Data analytics - Flow charts
- Data analytics
The ratio of a machine's power output to power input is the machine's __________. - Inequalities - Efficiency - Input / output ratio - Friction loss
- Efficiency
The tool changer is a device that allows the robot to perform multiple tasks by changing out __________. - The tool speed - Robot arms - Batteries - Batteries - End effectors
- End effectors
Engineers and technicians strive for 100% efficiency to use less __________ and generate less heat. - Waste - Fuel - Energy - Time
- Energy
To assemble components that must be disassembled at a later time, use a(n) __________. - Weld - Fastener - Adhesive - Chemical bond
- Fastener
Cast iron and steel are two examples of __________. - Noble Metals - Base Metals - Precious Metals - Ferrous metals
- Ferrous metals
A playground teeter totter is considered what type of lever? - First-class lever - Second-class lever - Third-class lever - Forth-class lever
- First-class lever
Weight is measured in pound-force (lbf) or newtons (N). Weight is the __________ an object is pulled by gravity. - Load - Strength - Force - Pressure
- Force
Injection molding is a process that __________. - Forces molten material into a cavity that is shaped like the final part - Uses plastic trim pieces to conceal rough joints in a finished assembly - Promotes microbial growth in the presence of moisture - Forces material through a die with a fixed cross-sectional shape
- Forces molten material into a cavity that is shaped like the final part
What is the resistance between surfaces contacting each other? - Friction - Surface tension - Surface area - Tension resistance
- Friction
Select the positive example of friction. - Friction between threaded fastener and material - Friction between gears resulting in heat build up - Friction between skis and the snow surface - Friction between swimwear and water
- Friction between threaded fastener and material
Static and kinetic frictions are __________ rolling friction. - Greater than - Less than - The same as - Close to
- Greater than
__________ enable humans to enter information into a machine. - RCAs - Cams - HMIs - CADs
- HMIs
Softening metal improves malleability, which is the ability to be __________. - Tempered - Heat treated - Hammered, bent, and shaped - Machined
- Hammered, bent, and shaped
The force on a spring can be found by measuring the distance the spring changes from its original length, according to __________. - Hooke's Law - Hooke's Constant - Hooke's Spring Rate - Hooke's Measure
- Hooke's Law
Artificial Intelligence is the development of computer systems to be able to perform tasks that would normally require __________. - Computer intelligence - Human development - Human intelligence - Augmented intelligence
- Human intelligence
Automation enables a process or machine to perform tasks without __________. - Programs - Engineers - Human intervention - Schedules
- Human intervention
Interconnected sensors, various instruments, and computers are used in __________. - Scientific advancement (SA) - Industrial internet of things (IIOT) - Failure mode and effects analysis (FMEA) - Quality audits (QA)
- Industrial internet of things (IIOT)
Performing recurring, risky, and laborious tasks with more precision than a human, would be a benefit of implementing a(n) __________. - Sorting machine - Quality system - Industrial robot - Kanban system
- Industrial robot
Composites consist of two or more __________ that result in improved mechanical properties over the individual ingredients. - Alloys - Polymers - Ingredients - Metals
- Ingredients
In data analytics, the data must be __________ before being modeled and analyzed. - Invented and inspected - Inspected and cleansed - Revised and input - Calculated and sorted
- Inspected and cleansed
Besides carbon, ferrous metals often contain __________. - Iron - Copper - Zink - Boron
- Iron
Which pillar of Lean Manufacturing is most affected by using IIoT across the supply chain for better control and tracking of production and delivery? - Just-in-Time - Jidoka - Total Productive Maintenance - 5S
- Just-in-Time
Potential energy is stored energy until it is allowed to move, then it becomes __________. - Elastic energy - Emotional energy - Static energy - Kinetic energy
- Kinetic energy
The term "laser" originated as an acronym for __________. - Light amplifier and serious energy razor - Light emitting transducer - Light amplification by stimulated emission of radiation - Light and serious emission radiator
- Light amplification by stimulated emission of radiation
Friction causes machines to __________ productive power and heat moving parts. - Lose - Increase - Create - Stop
- Lose
A form of metal separation that uses a cutting tool to carve metal from stock is called __________. - Grinding - Machining - Drilling - Filing
- Machining
VFDs have become so inexpensive that they are replacing __________ for many constant-speed applications. - PLCs - Magnetic motor starters - Variable frequency drives - Manual motor starters
- Magnetic motor starters
Torque is a force that __________. - Is not used in a first-class lever - Transmits force from one point to another - Makes an object rotate about a point - Makes parts brittle
- Makes an object rotate about a point
The weight of an object is determined by __________. - Mass and gravity's force - Gravity's force - Specific force - Mass and specific force
- Mass and gravity's force
Mass is the amount of __________ the object contains. - Matter - Force - Weight - Gravity
- Matter
The rate machines perform work is defined as __________. - Mechanical pressure - Mechanical power - Mechanical load - Mechanical force
- Mechanical power
Originally, the field of mechatronics was intended to be a combination of __________. - Engineers and maintenance - Robots and sensors - Mechanics and electronics - Production and logistics
- Mechanics and electronics
A device that transmits force from one point to another for the purpose of work is a __________. - Machine - Mechanical drive - Machine drive - Mechanism
- Mechanism
Laser cutting uses a high powered laser to cut __________ material into __________ shapes. - Cloth, accurate - Plastic, square - Metal, very precise - Iron, I-beam
- Metal, very precise
Steel is the __________ manufacturing material in the world. - Most flexible - Most popular - Most expensive - Most creative
- Most popular
Liquid lubricants like oil are the __________ and best-known types of lubricant. - Most rare - Least versatile - Most expensive - Most versatile
- Most versatile
CNC (Computer Numerical Control) refers specifically to a computer that controls what aspect of the machine? - Memory - Graphics - Motion - The counting process
- Motion
A conveyor is a material handling method that uses a __________ to move material continuously. - Forklift - Moving belt or chain driven by a motor - Flat cart or dolly - Vibrating parts holder
- Moving belt or chain driven by a motor
Computer chips are created using __________. - Additive manufacturing - Small scale chip machines - Nanomanufacturing - Metal pressing technology
- Nanomanufacturing
What SI units of measurement are used for torque? - Newton - Newton-meter - Kilowatts - Rpm
- Newton-meter
Force is any attempt to change the motion of an object and is measured in __________. - Newtons (N) and pound-force (lbf) - Foot-pounds (flb) - Pounds per square inch (psi) - Pounds per square foot (psf)
- Newtons (N) and pound-force (lbf)
__________ metals are resistant to corrosion, lightweight, and bendable. - Ferrous - Non-Ferrous - Composite - Nanometer
- Non-Ferrous
Nanomanufacturing produces material or devices smaller than nanometer, which is less than __________. - One billionth of a meter - One millionth of a meter - One thousandth of a meter - One tenth of a meter
- One billionth of a meter
Hard-wired relay circuits were replaced by what devices? - PLCs - Network Routers - Mainframe computers - Variable frequency drives (VFDs)
- PLCs
__________ is the most well-known form of metal finishing. - Plating - Polishing - Etching - Painting
- Painting
Adhesive bonding is considered a(n) __________ assembly process. - Temporary - Permanent - Unreliable - Dangerous
- Permanent
What type of hazard is present when working on gearboxes and being exposed to moving parts? - Ergonomic - Workload - Pinch point - Chemical
- Pinch point
Casting is the process of __________. - Pressing metal into mold - Cooling heat treated metal - Forming soft material by hand - Pouring a heated liquid into a mold
- Pouring a heated liquid into a mold
The Industrial Internet of Things (IIOT) enables a company to collect data to improve __________ in various processes. - Precision, quality, speed, and reliability - Teamwork - Operator dependability - Cleanliness and output
- Precision, quality, speed, and reliability
Data analytics can be divided into four types depending on the objective. What type of data analytics should you use if your objective is to present likely options of what might happen? - Prescriptive - Predictive - Diagnostic - Descriptive
- Predictive
Which of the following is a general-purpose industrial computer that has been designed to wire directly to input and output devices. - Variable frequency drive (VFD) - Human Machine Interface (HMI) - Computer numerical control (CNC) - Programmable Logic Controller (PLC)
- Programmable Logic Controller (PLC)
The operating temperature range of a gearbox should be considered when selecting __________. - Gear ratios - Grease fittings - Proper viscosity of oil - Mounting bolts
- Proper viscosity of oil
Which of the following would NOT be a typical job for a robot? - Material handling - Quality control - Painting - Welding
- Quality control
Ceramics are said to be __________ materials, which means they maintain their shape and strength when exposed to high heat. - Malleable - Refractory - Friable - Ferrous
- Refractory
Mechanical advantage is the ratio between the effort side and __________. - Fulcrum - Resistance side - Resistance force - Effort force
- Resistance side
What is the power used to cause a rotary device to rotate? - Rotational speed - Drive power - Rotary power - Linear power
- Rotary power
A wheelbarrow is considered what type of lever? - First-class lever - Second-class lever - Third-class lever - Forth-class lever
- Second-class lever
What are edge devices? - Sensors and machines that produce data - Cloud storage units - Fog computing nodes - Big data storage repositories
- Sensors and machines that produce data
Kinetic friction is __________ friction. - Sliding - Static - Stationary - Unstable
- Sliding
What runs a computer's operating system? - Hard drive - Peripherals - Software - Monitor
- Software
Which cloud computing service involves client companies renting the use of software from providers and the client's users accessing the software over the internet? - Infrastructure as a Service - Platform as a Service - Software as a Service - Smart analytics
- Software as a Service
Chromium is added to steel to form __________. - Brass - Bronze - Pewter - Stainless steel
- Stainless steel
Rolling resistance does not have __________. - Sliding and friction - Friction and wear - Static and kinetic friction - Friction and tension
- Static and kinetic friction
Which class of lever will never have a mechanical advantage greater than 1.0? - First-class - Second-class - Third-class - Forth-class
- Third-class
What is calculated by multiplying the effort force by the distance of the force from the fulcrum? - Lever force - Torque - Rotation - Tension
- Torque
_________ ceramics consist of clay-based products, glass, and cement. - Alloyed - Organic - Engineered - Traditional
- Traditional
The articulated robot has a shoulder axis that goes in the __________ directions. - Left and right - Up and down - Circular - Over and under
- Up and down
Cameras are used in __________ systems to capture/transmit images to a computer. - Optical comparitor - Radar - CMM inspection - Vision inspection
- Vision inspection
Basic mechanisms are levers, inclined planes, and __________. - Pliers - Wheelbarrows - Wheels - Ramps
- Wheels
Static friction works against the moving object, kinetic friction works __________. - Against the moving object - With less force than static friction - With more force than static friction - With equal force of static friction
- With less force than static friction
Moving an object from one point to another is called __________. - Load - Force - Mass - Work
- Work
