Machine Design MCQs
Machine Design MCQs
Answer these 500+ Machine Design MCQs and assess your grip on the subject of Machine Design.
Scroll below and get started!
1: In second type of levers,
A. Effort is in between the fulcrum and load
B. Load is in between the fulcrum and effort
C. None of these
D. Fulcrum is in between the load and effort
2: All stresses produced in a belt are
A. Both tensile and compressive stresses
B. Compressive stresses
C. Shear stresses
D. Tensile stresses
3: Slenderness ratio is the ratio of
A. Effective length of column to width of column
B. Width of column to depth of column
C. Effective length of column to least radius of gyration of the column
D. Maximum size of column to minimum size of column
4: According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by
A. 2 mm for rivet diameter from 39 mm to 48 mm
B. 0.5 mm upto rivet diameter of 24 mm
C. 1 mm for rivet diameter from 27 mm to 36 mm
D. All of these
5: Circumferential joint in boilers is used to get the required length of a boiler.
A. False
B. True
6: A screw is said to be over hauling screw, if its efficiency is
A. None of these
B. Equal to 50%
C. Less than 50%
D. More than 50%
7: In a hydrodynamic lubricated bearing
A. There is a thin film of lubricant between the journal and the bearing
B. There is no lubricant between the journal and the bearing
C. There is a thick film of lubricant between the journal and the bearing
D. The lubricant is forced between the journal and the bearing, by external pressure
8: A transmission shaft includes
A. Line shaft
B. Over head shaft
C. All of these
D. Counter shaft
9: Which of the following statement is correct for gears?
A. The addendum is less than dedendum
B. The pitch circle is always greater than the base circle
C. All of these
D. The pitch circle diameter is equal to the product of module and number of teeth
10: Lewis equation in gears is used to find the
A. Shear stress
B. Fatigue stress
C. Compressive stress in bending
D. Tensile stress in bending
11: A crankshaft is a __________ shaft.
A. Transmission
B. Machine
12: The resistance to fatigue of a material is measured by
A. Endurance limit
B. Ultimate tensile strength
C. Elastic limit
D. Young's modulus
13: In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)
A. 2 d
B. D
C. 2.5 d
D. 1.5 D
14: The property of a material which enables it to be drawn into wires with the application of a tensile force, is called
A. Ductility
B. Malleability
C. Elasticity
D. Plasticity
15: An open belt drive is used when
A. Shafts are arranged parallel and rotate in the same directions
B. Shafts are arranged parallel and rotate in the opposite directions
C. Driven shaft is to be started or stopped whenever desired without interferring with the driving shaft
D. Shafts are arranged at right angles and rotate in one definite direction
16: The value of stress concentration factor depends upon
A. None of these
B. Material of the part
C. Geometry of the part
D. Material and geometry of the part
17: Screws used for power transmission should have
A. Low efficiency
B. Strong teeth
C. High efficiency
D. Very fine threads
18: The cam follower extensively used in air-craft engines is
A. Flat faced follower
B. Roller follower
C. Spherical faced follower
D. Knife edge follower
19: When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as
A. Internal bevel gears
B. Mitre gears
C. Crown bevel gears
D. Angular bevel gears
20: The number of rivets in shear shall be equal to the number of rivets in crushing.
A. Incorrect
B. Correct
21: What is the process by which resources are converted?
A. Production process
B. Engineering design process
C. Manufacturing process
D. Purchasing process
22: What is the purpose of the engineering design process?
A. To produce a product that meets customer needs
B. To produce a design that is technically feasible
C. To produce designs that are feasible and meet the requirements of the project
D. To produce plans by which resources are converted, preferably optimally with due consideration for environment
E. To produce a design that meets the needs of the client
23: What discipline is encompassed by the term mechanical design?
A. Civil engineering
B. Process engineering, manufacturing engineering, materials science
C. Aerospace engineering
D. All disciplines of mechanical engineering, thermal and fluid sciences, solid mechanics, materials and processes, manufacturing sciences
E. CAD/CAE, FEA, materials science
24: What is the use of scientific principles and technical information to define a machine?
A. To create a reliable and efficient machine
B. To improve the quality of the manufactured products
C. Control system design
D. Mechanical design process
E. Fabrication process
25: The use of scientific principles and information along with what is used to define a machine, mechanical device or system?
A. Innovations, ingenuity, or imagination
B. Designs or blueprints
C. Science
D. Mathematics
E. The physical laws that govern how things move
26: What is used in the definition of the Mechanical Design Process?
A. Client needs and preferences
B. Business strategy
C. Scientific principles and technical information
D. Prototypes
E. Human Resources policies
27: What is another word for "moving images"?
A. Photograph
B. Animation
C. Painting
28: What type of software is used to create animation?
A. Adobe Photoshop
B. Photoshop
C. Illustrator
D. Animation software
E. 3D CAD
29: What is used in ergonomics?
A. Psychometrics
B. Ergonomic principles
C. Equipment
D. Ergonomics methods
E. Anthropometrics
30: What are components that are related, constitute common object and have interconnections called?
A. Assembly
B. System
C. Circuit
D. Network
31: What is the term for the later phases of a design process?
A. Middleware
B. Implementation
C. Backend
D. Frontend
32: What does close to manufacturing refer to?
A. A system in which products are made
B. The final stages of product manufacturing
C. The production of a product
D. The companies that make products in close proximity to the consumer
E. The later phases of a design process
33: A clearance in a mechanism is commonly referred to as what term?
A. Check
B. Backlash
C. Take-up
D. Clearance
34: What can cause a clearance in a mechanism?
A. Damaged parts
B. Worn parts
C. Gaps between the parts
D. Defective parts
E. Improper lubrication
35: What can be felt before a system reverses?
A. Heat
B. Pressure
C. Clearances
D. Noise
36: What does a BOM include?
A. The date the parts were produced
B. Part ID numbers and corresponding drawing numbers
C. Bill of materials
D. Parts list
E. The quantity of each part
37: What is a table containing?
A. A spreadsheet of the components required
B. Record of the test data
C. List of the custom-made and off-the-shelf components
D. Chart of the test data
E. A diagram of the components and their corresponding wiring
38: In general, what term describes something that sticks up on a part?
A. Mushroom
B. Boss
C. Spike
D. Horn
39: What is a boss in 3D CAD?
A. Base
B. Added material
C. Orientation
D. Order
E. Object
40: What is a boss in general used to describe?
A. A person in charge
B. A person who gives you orders
C. Something that sticks up on a part
D. A person in a position of authority
E. A person who makes decisions
41: What long, multi-tooth tool has successively deeper cuts?
A. Broach
B. File
C. Chisel
D. Drill
E. Saw
42: What is a broach used to machine?
A. Bolt
B. Joining two pieces of metal
C. Cutting tool
D. Internal and external surfaces
E. Nail
43: What kind of teeth does an example of the Broach have?
A. Carnivore
B. Multi-tooth
C. Canine
D. Incisor
E. Human
44: What is the term for using a computer to help in creation, modification, analysis, or optimization of a design in 2D or 3D?
A. Computer Graphics
B. Computer Aided Drafting
C. Computer Aided Design
D. Computer Aided Manufacturing
E. CAD Computer Aided Design
45: What is another term for CAD?
A. CAE
B. CADD
C. Computer-based design
D. Computer aided design
E. CAM
46: Over what process does CAM take over when it's finished?
A. 3D Printing
B. FEA
C. Laser
D. CAD
E. CAM drawing
47: When using CAM, a company may use software and what else?
A. Maintenance manuals
B. Manual tools
C. Equipment used to produce products
D. Project management
E. Computer-controlled machinery
48: When does CAM Computer Aided Manufacturing replace CAD?
A. When it becomes obsolete
B. When CAD becomes a fraction of the cost
C. When accuracy is required
D. When a product needs to be designed quickly
E. When the phase of the latter is over
49: What is the term for the use of software and computer-controlled machinery to automate a manufacturing process?
A. Computer Numerical Control
B. Computer-Aided Design
C. Robotics
D. CAM Computer Aided Manufacturing
E. Computer Aided Manufacturing
50: The process of casting involves pouring a liquid mix into a mold, followed by what?
A. Cooling down the mold and the material
B. Pressing the material into the mold
C. Pouring a hot liquid mix into the mold
D. Removing the mold
E. Removing the finished product from the mold
51: What is casting process used to make?
A. Gems
B. Tires
C. Metal
D. Parts
E. A car
52: Which surface is flat when made by cutting off the straight edge of an object?
A. Groove
B. Bevel
C. Chamfer
D. Burr
E. Radius
53: Chamfer is what type of surface when it is cut off the straight edge of an object?
A. Round
B. Flat
C. Beveled
D. Uneven
E. Bevel
54: What is the term used to describe the specification of the material used to make a product?
A. Shape, material, colour
B. Color, material, weight
C. Texture, material, colour
D. Colour, material, finish
E. Material, color, finish
55: What is a component in an assembly or sub-assembly?
A. Component
B. Single part or discrete element
C. Sub-assembly
D. Assembly
56: The arrangement or placement of components is called what?
A. Arrangement
B. Design
C. Organization
D. Composition
57: What is composition in layout?
A. The division of a page into separate areas for different purposes
B. The process or skill of creating a visual effect
C. The result of the joining or juxtaposition of different elements
D. A placement or arrangement of design elements/components
E. The combination of different design elements to create a cohesive layout
58: What is the meaning of composition?
A. The act of making something out of various parts
B. The result of combining different elements
C. The result or output of a union of different elements
D. The act or process of making something by combining parts
E. A placement or arrangement of design elements/components in a whole design work or assembly
59: What is the initial phase of the design process called?
A. Functional Design
B. Interface Design
C. Technical Design
D. Conceptual Design
60: What is normally a disposable item that is destroyed to get it out of the piece?
A. Nail
B. Core
C. Sheet
D. Screw
E. Wire
61: What does the core usually become after it is removed from the piece?
A. Art
B. Jewelry
C. Container
D. Food
E. Disposable item
62: What kind of hole is a countersink?
A. Oval
B. U-shaped
C. Conical
D. Round
E. Square
63: What do we add to an existing hole to accommodate the conic head of a fastener?
A. A T-slot
B. A conical hole
C. A threaded hole
D. A cylindrical hole
E. A bolt
64: What's the purpose of a countersink?
A. Restrain the fastener from turning
B. Accommodate the conic head of a fastener
C. Make a pilot hole and countersink
D. Drill a pilot hole
E. Hold the workpiece in place
65: What kind of reference feature is a datum?
A. Variable
B. Free-floating
C. Dynamic
D. Fixed
66: A datum is a fixed reference feature for what?
A. Dimensioning a part
B. Defining the location of a feature
C. Determining location
D. Assigning dimensions
E. Determining distance
67: What is the number of independent parameters that define configuration of a system?
A. State
B. Degree-of-freedom
C. Frequency
D. Configuration
E. Phase
68: What is the number of DOF of the end-effector of a manipulator?
A. Two-DOF
B. Four-DOF
C. Six-DOF
69: What is a typical redundancy number for rotational actuators?
A. Ten
B. Twelve
C. Three
D. Seven
70: What is the number of DOF of a mechanism often defined as a sum of DOF of all its individual drives?
A. Ten
B. Eight
C. Six
71: What is the name of the 5 phases of UX design thinking?
A. Empathize, Define, Ideate, Prototype and Test
B. Define, Ideate, Prototype, Test and Reflect
C. Ideate, Prototype, Test, Define and Empathize.
D. Ideate, Prototype, Test, Define and Empathize
E. Ideate, prototype, test, reflect and deliver
72: What is the purpose of the phase where the design is finalized?
A. Prototyping
B. Detailed design
C. Production
D. Pre-production
E. Flowcharting
73: What is the purpose of detailed design?
A. To help minimize construction costs
B. The phase where the design is finalized and drawings, specifications and estimates are created
C. To make sure that the design complies with all applicable regulations
D. The phase where the design is created and refined
E. The phase where the client and contractor discuss the design
74: What is a specialized tool to cut or shape material using a press?
A. Hammer
B. Chisel
C. Saw
D. Die
75: What is another word for die?
A. Ball
B. Symbol
C. Tool
D. Quality
E. Cricket
76: How many dimensions are in drawings?
A. 3D
B. 2D
C. 4D
77: A drawing is used to assist production by providing necessary information to produce a particular part or assembly by providing what?
A. Blueprints
B. Views of the object to be produced
C. Coordinates
D. Part numbers
E. Dimensions, tolerances and notes
78: What is another term for Eco Design?
A. Sustainable design
B. Ecological design
C. Conservation design
D. Green design
79: What is the process of design with consideration for the environmental impact of the product during its lifetime called?
A. Integrated Design
B. Green Design
C. Design for the Environment
D. Eco Design
E. Design for Manufacture
80: Targeting effective, safe, and comfortable use of a product by whom?
A. Manufacturers
B. Doctors
C. Customers
D. Distributors
E. Employees
81: What is the term used to describe the use of anthropometrical data to determine optimum size, shape and form?
A. Body Measurement Techniques
B. Statistical Methods for Design
C. Human Factors Design Principles of design
D. Anthropometric Survey
E. Ergonomic Design Principles of design
82: What is the name of the picture or drawing of the components separated and placed in position to be assembled to illustrate the parts and their relationships to one other?
A. Exploded view
B. Assembly diagram
C. Parts list
83: What is the purpose of an exploded view?
A. To show the different parts of the product
B. To show how the parts fit together
C. To illustrate the parts and their relationships to one another
D. To identify potential problems
E. To identify potential defects
84: What is an example of a relevant factor in a feasibility study?
A. Legal
B. Technical
C. Political
D. Economic
85: What type of study involves extensive research?
A. Clinical Trial
B. Pilot Study
C. Experimental Study
D. Feasibility Study/Analysis
E. Survey Study
86: What is another name for a Cornice?
A. Fascia
B. Fillet
C. Trim
D. Crown
87: Along with aesthetics and simplification, what benefit does a fillet provide?
A. Reduced weight
B. Lengthening
C. Decreased drag
D. Strengthening
E. Reducing curl
88: What is another term for Fillet?
A. A rounding of an interior or exterior corner between two intersecting surfaces
B. A thin slice of meat or fish
C. A decorative design on a piece of furniture
89: What is the class of contact that occurs between shaft and hole?
A. Bonding
B. Shear
C. Interference
D. Coupling
E. Pressure
90: What is the term for the class of contact between two machined surfaces?
A. Joint
B. Fit
C. Surface
D. Gap
91: What type of device is used to hold a workpiece on a workbench or a machine-tool?
A. Jig
B. Clamp
C. Fixture
D. Wrench
E. Vise
92: What is a fixture used to hold while manufacturing is performed upon it?
A. Wrench
B. Tool
C. Workpiece
D. Sheet metal
93: What does the flange serve to attach the motor to?
A. The body of the fan
B. The blades
C. A bracket or another structural element
D. The housing
E. The motor
94: What serves to attach the motor to a bracket or another structural element?
A. Screw
B. Bolt
C. Flange
95: What is the term sometimes used as the three-dimensional equivalent of?
A. Color
B. Shape
C. Surface
D. Texture
E. Volume
96: What does the Type of prototype used to assess the external form of the design usually include?
A. Wireframe
B. Full size
C. Prototype
D. Sketch
E. Mock-up
97: What is the term for a point in time after which no further changes to the appearance are intended?
A. Update
B. Styling freeze
C. Release
D. Feature freeze
E. Quality freeze
98: What is a freeze used for during product development?
A. Test freeze prevents changes to the software during testing
B. Specification freeze defines the set of requirements the entire design will be based on
C. Requirements freeze freezes requirements for future changes
D. Interface freeze freezes the interfaces between different modules
E. Development freeze allows developers to make modifications only to the newly created code
99: What is a typical name for this stage of project engineering design?
A. Front End Design
B. Interface Design
C. Middle Management Design
D. Back End Design
100: What is a typical use of the term front end design?
A. The design of a website's graphical user interface
B. The design of printed materials
C. A preliminary stage of engineering design
D. The first phase of a project
E. The layout or appearance of a website
List of Machine Design MCQs Mu...
Available in:
Machine Design MCQs
