About Machine Drawing

Following are some of the multiple choice questions on the Machine Drawing with answers that will help the students in developing their knowledge.

Machine Drawing MCQ

1. What is CAD?

  • an app that lets you analyze different design concepts
  • coding program to let you do autonomous competitions
  • computer software used to create 3D models of engineering designs
  • creation and development for any robot

2. What is an Electrical Generator

  • A device that creates water
  • A device that converts mechanical energy into electrical energy
  • A device that makes you go to school
  • a device that makes kids

3. What does CAD stand for?

  • Code and design
  • Computer aided Design
  • Create and design
  • craft and design

4. Define orthographic projection?

  • Showing a front view, side view and plan view
  • Showing a front and a back view
  • First and third angle
  • Showing views of a complex object

5. What does a motor do?

  • Moves up and down
  • Rotates without Electricity 
  • It does
  • Uses Electricity to cause motion (usually, rotational motion)

6. What is the main goal of the design process?

  • To write reports
  • To make things
  • To make charts and graphs
  • To find solutions to problems

7. Why is the stator core of Alternator laminated?

  • to increase heat
  • to control hysterisis loss
  • to reduce eddy current
  • to gain higher current

8. What is the First Step of the Engineering Design Process

  • Testing Solutions
  • Designing Solutions
  • Identifying the Problem
  • Planning Solutions

9. What is the purpose of a title block?

  • To show all the information that is needed to read the drawing
  • To include names and units of measurements
  • To show all the parts of the drawing

10. In Vickers hardness testing, the pyramid indentor apex is...

  • 40*
  • 122*
  • 136*
  • 152*

11. The term _____ describes a series of jobs built on a foundation of interest, knowledge, training, and experience.

  • career
  • aptitude
  • path
  • certification
  • employment

12. Self-motivation and the ability to make good business decisions are most important to _____.

  • technical illustrators
  • drafting and CAD entrepreneurs
  • factory workers
  • drafting technicians
  • junior drafters

13. What is a positive aspect of self-employment?

  • financial risk
  • shorter work hours
  • guaranteed success
  • job satisfaction
  • all of these

14. A specialized system for drafting in which a computer and specialized software replace board-drafting instruments is known as _____.

  • computer-aided drafting (CAD)
  • board drafting

15. A Half-moon protractor is divided into how many degrees?

  • 360
  • 180
  • 270
  • 310

16. The introduction of _____ has radically changed the drafting profession.

  • computer-aided drafting (CAD)
  • board drafting

17. Electric motors are devices that convert _____ energy into _____ energy.

  • electrical; mechanical
  • mechanical; electrical
  • chemical; potential
  • mechanical; kinetic

18. CAD can be used in which of the following engineering fields? Select all that apply.

  • civil
  • mechanical
  • electrical
  • All of above

19. True or False: SnapCAD can be used with any robot system?

  • True
  • False

20. What does the parts tree allow you to do? Select all that apply.

  • switch view
  • select parts
  • group/ungroup parts
  • rotate parts
  • All of above

21. What is a proof of concept (POC)?

  • evidence that you have enough parts
  • a prototype or first draft
  • evidence that your robot will work
  • prediction of construction

22. The helix angle for double helical gears may be made up to...........

  • 75*
  • 60*
  • 45*
  • 90*

23. Flywheels are used in punching and shear operation.

  • False
  • True

24. The steel widely used for motor car crankshafts is.....

  • Nickel steel
  • High speed steel
  • Nickel chrome steel
  • Chrome steel

25. A column of length L is fixed at both ends. The equivalent length of the column is....

  • L
  • L/3
  • L/2
  • 3L

26. The notch sensitivity q is expressed in terms of fatigue stress concentration factor 'Kf' and theoretical stress concentration factor 'Kt' as ...

  • (Kf + 1) / (Kt + 1)
  • (Kf - 1) / (Kt - 1)
  • (Kt + 1) / (Kf + 1)
  • (Kt - 1) / (Kf - 1)

27. If the centre distance of the mating gears having involute teeth is varied limits the velocity ratio...

  • Increases
  • Decreases
  • Remains unchanged
  • None of these

28. Guest's theory is used for....

  • Brittle materials
  • Ductile materials
  • Elastic materials
  • Plastic materials

29. Rankine Gordon formula for buckling is valid for...

  • Short and long column
  • Long column
  • Short column
  • very long column

30. In the levers of third type, the mechanical advantage is ________ one.

  • Equal to
  • More than
  • Less than
  • None of these

31. A screw will be self locking, if....

  • Friction angle is less than helix angle
  • Friction angle is more than helix angle
  • Friction angle is equal to helix angle
  • Efficiency of screw is 100%

32. Surface endurance limit of gear material is dependent upon its...

  • Elastic strength
  • Yield strength
  • Toughness
  • Brinell hardness number

33. The size of a gear is usually specified by...

  • Pressure angle
  • Pitch circle diameter
  • circular pitch
  • Diametral pitch

34. Generators get their mechanical power from

  • Batteries
  • Prime mover 
  • Transistor
  • Capacitors

35. Which of the following the magnetic field current is supplied by a separate DC power source,

  • Induction machines
  • synchronous machines
  • Transformers
  • AC genrators

36. Which of the following the magnetic field current is supplied by a magnetic induction (transformer action) into their field windings

  • Induction machines
  • synchronous machines
  • transformers
  • Ac generators

37. At what speed three-phase cylindrical two-pole synchronous alternator rotates when connected to a 50 Hz infinite busbar system?

  • 1000 rpm
  • 1500 rpm
  • 3000 rpm
  • 6000 rpm

38. What is load condition for Ea = Vphase in synchronous generator?

  • full load
  • no load
  • half load
  • rated load

39. As the number of pole increase the synchronous speed

  • Increase 
  • decrease 
  • remain same 

40. In a star-delta starter, The starting torque as the connection is star will be ___________ times that it will be for delta connected winding.

  • 2/3
  • 1/ sqrt (3)
  • 2 / sqrt (3)
  • 1/3

41. A simple machine that allows you to test your design.

  • solution
  • design
  • prototype
  • failure point

42. You begin to create a prototype of your design only to find that your solution isn't working at all. What should you do?

  • Add more tape
  • Go back to an earlier stage and choose another solution
  • Blame your partner
  • Keep going and hope it will be ok

43. You try, you failyou try, you failyou try, you failIt's OK if you fail as long as you keep doing this step in the engineering design process...

  • Think about why you failed
  • Quit
  • Improve upon failure points
  • Create a new problem

44. This diagram is an example of what step in the engineering design process?

  • Create a model
  • Plan solutions
  • Identify Failure points
  • Improve upon failure points

45. Anthony makes a paper bridge between two stacks of books. It collapses when he pushes a toy car across it. Which material would NOT help him improve the bridge?

  • Markers
  • Paper
  • Straws
  • Tape

46. What two forces are required for generators and electric motors to work?

  • magnetism and thermal 
  • electricity and thermal 
  • electricity and magnetism 
  • magnetism and radiant 

47. During which step of the Design Process do you experiment with the prototype under controlled conditions and collect /record data?

  • Test the Model
  • Construct a Model
  • Identify Failure Points
  • Reflect and Redesign

48. An engineer has designed and built a prototype to improve the brake system of a car. What is the next step that the engineer should take in the process?

  • Test the prototype.
  • Make sketches of the prototype.
  • Identify constraints.
  • Collect and analyze the test results. 

49. When finding the solution to an engineering problem, there is/are usually

  • only one possible correct solution
  • a very limited number of possible correct solutions
  • many possible correct solutions

50. Generators are devices that convert _____ energy into _____ energy.

  • chemical; mechanical
  • mechanical; electrical
  • electrical; mechanical
  • potential; kinetic

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