Machine design MCQ

The property of a material which enables it to resist fracture due to high impact loads is known as

Answer

Correct Answer: Toughness

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The permissible stress for carbon steel under static loading is generally taken as

Answer

Correct Answer: 4000-4500 kg/cm2

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The ultimate strength of steel in tension in comparison to shear is in the ratio of

Answer

Correct Answer: 3 : 2

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What is an example of an undercut?

Answer

Correct Answer: A cut having inward sloping sides with an overhanging edge

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What type of cut has inward sloping sides with an overhanging edge?

Answer

Correct Answer: Undercut

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What is dedicated to making components?

Answer

Correct Answer: Tooling

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What are the two definitions of a hand tool?

Answer

Correct Answer: Powered by hand rather than a motor

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What is a device that is necessary to, or aids in the performance of a specific operation?

Answer

Correct Answer: A tool

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What is the maximum limit of a dimension?

Answer

Correct Answer: Upper

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What is used to control the manufacturing process more accurately?

Answer

Correct Answer: Tolerances

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What is a border table usually located on?

Answer

Correct Answer: The bottom or lower right-hand corner of a manufacturing drawing

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What is the name of the border table usually located on the bottom or lower right-hand corner of a manufacturing drawing?

Answer

Correct Answer: Title Block

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What is a sort of thermal analysis that helps to tailor the thermal management solution for optimal performance?

Answer

Correct Answer: Thermal Simulation

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What can be used to dissipate heat in a system?

Answer

Correct Answer: Heatsinks and fans for air cooling

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What is the name for the ability to control the temperature of a system by means of technology based on Thermodynamics and Heat Transfer?

Answer

Correct Answer: Thermal Management

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What can't be used to attach a fastener that has a tapped hole?

Answer

Correct Answer: Nut and bolt

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In what material can you find a tapped hole?

Answer

Correct Answer: Metals

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What kind of tool does a tap have?

Answer

Correct Answer: Internal screw thread

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Architecture is a formal description and representation of a system organized in a way that supports what?

Answer

Correct Answer: Reasoning

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What is the formal description and representation of a system?

Answer

Correct Answer: Architecture description

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What kind of job is it to be an architect?

Answer

Correct Answer: Technology professional

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What is a technology professional who defines and implements architecture of a complex system referred to as?

Answer

Correct Answer: System Architect

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What is a type of Subassembly?

Answer

Correct Answer: An assembled unit that is produced separately but is incorporated into a larger assembly

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What is an example of an assebly that is produced separately but is incorporated into a larger assembly?

Answer

Correct Answer: Subassembly

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Standard for the Exchange of Product Data is better known as what?

Answer

Correct Answer: Computer 3D model file format

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What kind of separator positions assemblies at predetermined distances?

Answer

Correct Answer: Threaded

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What type of feature is faced on the spotface of a part?

Answer

Correct Answer: Smooth, flat, accurately located contact surface

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What is the term for a cylindrical pattern of ridges or teeth on a drive shaft?

Answer

Correct Answer: Spline

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What are commonly used to free-hand sketches?

Answer

Correct Answer: Pen or a pencil

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Minimum permissible chamfer dimensions are four times taller than what?

Answer

Correct Answer: Shoulder

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What are minimum dimensions of the shoulder planes of a shaft?

Answer

Correct Answer: Four times taller

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What is a schematic called when it is of mechanical systems?

Answer

Correct Answer: Structural or procedural diagram

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What is the ratio of size to actual size in a drawing with a scale of 1:5?

Answer

Correct Answer: Downscaling

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A sample can represent a material or process without necessarily being in the form of what?

Answer

Correct Answer: The design in progress

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What does a sample represent in a prototype?

Answer

Correct Answer: A material or process

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What is the purpose of research when it is done on materials and sources?

Answer

Correct Answer: Establish facts and reach new conclusions

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What two types of research are common during a project?

Answer

Correct Answer: User research, competitor research

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What type of image is synthesized from 3D CAD model data?

Answer

Correct Answer: Photorealistic or non-photorealistic

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What is the process of getting the final assembled animation scenes or pieces out of the computer in the format of a sequence of individual frames with rendered images?

Answer

Correct Answer: Rendered Animation

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What kind of software is used to create 3D CAD images?

Answer

Correct Answer: 3D CAD software

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What is a render used for when used in advertising?

Answer

Correct Answer: Design visualization

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What does a relief groove provide for the cutting edge of a tool?

Answer

Correct Answer: Clearance

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What type of technology allows a model to be created by adding layers of materials?

Answer

Correct Answer: Rapid prototyping

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What is another term for rapid prototyping?

Answer

Correct Answer: Additive layer manufacturing

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What does the rack do when the pinion is pushed into rotation?

Answer

Correct Answer: Be driven linearly

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What is the term used to describe a type of linear actuator?

Answer

Correct Answer: Rack’n’pinion

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Quality Management Systems are focused on achieving what?

Answer

Correct Answer: Quality objectives

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What is expressed as the organizational structure, policies, procedures, processes and resources needed to achieve the desired standard of quality?

Answer

Correct Answer: Quality Management Systems

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What is a process in which the quality of all factors involved in production is reviewed?

Answer

Correct Answer: Quality Control

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Quality assurance is a way to improve and stabilize production by means of?

Answer

Correct Answer: Preventing mistakes and defects

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How is a prototype used to evaluate a new design?

Answer

Correct Answer: Digitally

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How could prototype be enhanced digitally?

Answer

Correct Answer: With 3D models, renderings, and animations

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What can be used to build a prototype physically?

Answer

Correct Answer: 3D printers

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In what area is Proposal used?

Answer

Correct Answer: Design project

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Proposal is another word for what?

Answer

Correct Answer: Act of putting forward or stating an approach to a design project for consideration

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What does "proposal" mean in the context of architecture?

Answer

Correct Answer: An act of putting forward or stating an approach to a design project for consideration

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Along with a product, what may a project be defined as?

Answer

Correct Answer: A piece of stand-alone research task or a conceptual development

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What are title blocks called?

Answer

Correct Answer: On all individual drawings

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What is another name for the drawing commonly referred to as the production drawing?

Answer

Correct Answer: Manufacturing Drawing

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What would increase the bearing rigidity?

Answer

Correct Answer: Bearing preloading

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What does preloading a bearing do?

Answer

Correct Answer: Increases bearing rigidity

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What is the name of the outer ring gear in an epicyclic gear train?

Answer

Correct Answer: Annulus

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What is an example of an epicyclic gear train?

Answer

Correct Answer: Planetary Gears

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Pitch is the distance between a point on one tooth and the corresponding point on an adjacent tooth. Pitch is also the distance between threads expressed in what?

Answer

Correct Answer: Millimeters

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What is the term used to describe a gear that drives the other gear?

Answer

Correct Answer: Pinion

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What is Pilot Run a small scale experimental production run to analyze the results for?

Answer

Correct Answer: Necessary corrections

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What does a project have during its research phase?

Answer

Correct Answer: Problem definition phase

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What is a term that refers to a distinct period or stage within a design program?

Answer

Correct Answer: Phase In Design

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What type of data is managed in PDM?

Answer

Correct Answer: Design data

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What is another term for BOMs?

Answer

Correct Answer: Bills of Materials

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What are PCBs called when they have only one copper layer?

Answer

Correct Answer: Single sided

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How many copper layers are on a double-sided PCB?

Answer

Correct Answer: Two

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What is the English word for Pawl A?

Answer

Correct Answer: Spring-loaded curved bar or lever

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A lever with a free end that engages with a cogwheel or ratchet at a steep angle, what is known as?

Answer

Correct Answer: Pawl A

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What may a product be an assembly of multiple parts?

Answer

Correct Answer: One part

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What kind of piece is a custom-designed part?

Answer

Correct Answer: Mechanical

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What is an example of off-the-shelf software or hardware?

Answer

Correct Answer: COTS - commercial off-the-shelf

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What is a common term for ready-made off-the-shelf software or hardware products?

Answer

Correct Answer: COTS

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What is the initial sample created using?

Answer

Correct Answer: Production tooling

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What is used to check design and tune the tooling prior to making production?

Answer

Correct Answer: Off-Tool Sample

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OEMs produce complete, finished product for what other company?

Answer

Correct Answer: Another company

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What is a contract manufacturer that produces complete, finished product for another company?

Answer

Correct Answer: OEM

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What does ODM allow the brand firm to do?

Answer

Correct Answer: Produce

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What does ODM stand for?

Answer

Correct Answer: Original Design Manufacturer

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What is the default file format used by SolidWorks to store part models?

Answer

Correct Answer: .SLDPRT

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What type of connection is a groove?

Answer

Correct Answer: Reduced diameter

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What can be made in a mold?

Answer

Correct Answer: Parts

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What is the name of the container used to produce parts by giving shape to molten liquid material?

Answer

Correct Answer: Mold

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An approach that subdivides a system or a mechanism into smaller elements is called?

Answer

Correct Answer: Modular design

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On a smaller scale than the original, what is a model called?

Answer

Correct Answer: Model A

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What type of bodies are connected by joints?

Answer

Correct Answer: Mostly rigid

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How are the bodies in a mechanism usually connected?

Answer

Correct Answer: By joints

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Working together in a controlled manner in order to accomplish a desired force and/or motion transmission is known as what?

Answer

Correct Answer: Mechanism

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What can a lug be used for?

Answer

Correct Answer: Support, to be used as a handle, or to allow mounting or attaching of another component

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A projection attached to a metal part to provide support, to be used as a handle, or to allow mounting or attaching of another component is called what?

Answer

Correct Answer: Lug

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The advance during a single revolution is called what?

Answer

Correct Answer: The lead

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The axial travel in a single revolution is known as what?

Answer

Correct Answer: Lead

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The use of knurls on handles and knobs is used to what?

Answer

Correct Answer: Roughen a turned surface

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What is used to roughen a turned surface?

Answer

Correct Answer: Knurling

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What type of cut is Keyway A?

Answer

Correct Answer: Slot

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