Gravity Games Test Item Bank

History

1.  Explain where the word “engineer” came from.

2.  Who is considered the father of CAD?

3.  Explain the difference between a Trebuchet and a Catapult.

4.  Name three fields of engineering which use CAD.

5.  Where was the Trebuchet invented?

6.  When was the Trebuchet invented?

7.  What was the major advancement in firing a Trebuchet?

CAD

8.  What does the acronym CAD stand for?

9.  List at least 3 geometric shapes (primitives).

10.  A quadrilateral with opposite sides parallel is a ______

  1. Hexagon
  2. Rectangle
  3. Circle
  4. Triangle

11.  Three dimensional drawings are drawn along what 3 axes.

12.  In CAD, to extrude means to do what?

13.  The sketch color black indicates the sketch is ______

  1. Undefined
  2. Fully Defined
  3. Over Defined
  4. Under Defined

14.  The sketch color blue indicates the sketch is ______

  1. Undefined
  2. Fully Defined
  3. Over Defined
  4. Under Defined

15.  The sketch color red indicates the sketch is ______

  1. Undefined
  2. Fully Defined
  3. Over Defined
  4. Under Defined

True – False

16.  Points that lie on the same line are coplanar.

17.  A triangle with one internal angle equal to 90 degrees is an equilateral triangle.

18.  The distance between the center of the circle and the edge of a circle is the radius.

19.  A line segment between two different points on a given circle is a chord.

20.  An angle greater than 90 degrees is an acute angle.

21.  An obtuse angle is one that is less than 90 degrees.

22.  A six-sided figure is known as a hexagon.

23.  Explain the difference between Coincident Mate and Concentric Mate.

24.  Name at least three of the areas of the SolidWorks* interface.

25. Which plane is the default sketch plane in SolidWorks?

26. In SolidWorks, a fixed component cannot move and is locked to the origin.

*SolidWorks is a registered Trademark of the SolidWorks Corporation in Concord, MA.

27.  What are the two dimensions which describe the front view?

28.  What are the two dimensions which describe the top view?

29.  What are the two dimensions which describe the side view?

30.  How do you represent hidden edges in a view?

31.  Which view has missing lines?

Top

Front Side

32.  What do the dashed lines in the side view represent?

33. A cylinder needs how many views to be represented?

Sketching & Measuring

34.  What is the most important consideration in sketching?

  1. Line quality
  2. Measurement
  3. Proportion
  4. Neatness

35.  If the diameter of a circle is 39 mm, what is the radius?

36.  Give the radius of a circle whose diameter is 7-3/4”

37.  Using a standard ruler, make an X Y graph with ½” divisions extending both ways along each axis 4 inches. Plot the following points and connect them with a line.

  1. –4, -6
  2. 4, -6
  3. 7, 0
  4. 4, 6
  5. –4, 6
  6. –7, 0

38.  What shape did your graph turn out to be?

39.  In which quadrant would values for sin and cosine both be negative?

40.  When sketching an isometric cylinder, what type of shape would you use for the end?

41.  What is the best measuring tool to measure cylindrical objects?

42.  Which measurement is closest to 1” on a ruler?

  1. ½”
  2. 11/16”
  3. ¾”
  4. 5/8”

43.  Which measurement is greater:

  1. 7/16”
  2. 14 mm
  3. ½”
  4. 12 mm

Perimeter, Area and Volume

44.  Define Perimeter

45.  What is another name for the perimeter of a circle?

46.  What is the formula to calculate the volume of a rectangular prism?

47.  What is the formula to calculate the volume of a cylinder?

48.  What is the formula to calculate the area of a rectangle?

49.  What is the formula to calculate the area of a circle.

50.  What is the formula for calculating the perimeter of a circle?

51.  Calculate the circumference of a circle with a 31 mm Ø.

52.  Calculate the area of a circle with a diameter of 26 mm.

53.  Calculate the perimeter of the following shape.

1’-4”

2’-0”

1’-2”

3’-3”

54.  Calculate the area of the above shape.

55.  Calculate the volume of a tube which has a radius of Outside Diameter of 4-1/2” and an Inside diameter of 2.5” and a height of 12”.

56.  Calculate the volume of a cylinder that has a 12 cm dia. and a height of 30 cm.

57.  Use tools to measure the following:

  1. What is the radius of the axle in mm? ______
  2. What is the height of the axle in mm? ______
  3. Calculate the Volume of the axle on mm3 . ______

58.  A two foot length of hardened steel Rod is $18.00.

  1. How many 1-3/8” axles can be cut from the rod? ______
  2. How much would each 1-3/8” axle be worth? ______

59.  Calculate the volume of the following 17 lb box:

2ft

3ft

2.5ft

Density

60.  Define Density

61.  Density is commonly expressed as:

  1. lbs
  2. Kg/ft
  3. lbs/ft3
  4. ft lbs/sec

62.  The density of aluminum is 2700 kg/m3 . Given and aluminum cylinder, calculate the mass if the radius is 38 cm and the height is 130 cm.

63.  Calculate the density of the following 17 lb box:

2ft

3ft

2.5ft

Simple Machines

64.  Define Mechanical Advantage.

65.  What is a simple formula to calculate work?

66.  Which is an example of a first class lever?

  1. Scissors
  2. Wheelbarrow
  3. Tweezers
  4. Nutcracker

67.  A seesaw is an example of which simple machine?

  1. Wedge
  2. Lever
  3. Pulley
  4. Inclined plane

68.  In comparing ideal and actual mechanical advantage, AMA is generally:

  1. Greater than IMA
  2. Less than IMA
  3. Equal to IMA
  4. Not comparable to IMA

69.  Describe the location of the input force of a third class lever system.

70.  Which lever system has the load between the pivot point (fulcrum) and the input force?

71.  Explain the difference between Theoretical Mechanical Advantage and Actual Mechanical Advantage

Forces

72.  Explain the difference between potential and kinetic energy.

73.  Explain the difference between weight, mass and force of gravity.

74.  A square plate of steel has a hole drilled into it. If the plate of steel is heated the volume of the hole will do which of the following?

  1. Decrease
  2. Increase
  3. Remain the same
  4. Distort

75. A book is resting on a table top. Sketch the forces acting on the book.

76.  If the forces acting upon an object are balanced, then the object

  1. must not be moving.

b.  must be moving with a constant velocity.

  1. must not be accelerating.
  2. none of the above.

77.  Define acceleration.

78.  Explain the difference between speed and velocity.

79.  Describe Newton’s 3 laws.

80.  A resultant force has both magnitude and:

  1. Weight
  2. Mass
  3. Direction
  4. Matter

81.  The measure of gravitational pull is:

  1. Mass
  2. Torque
  3. Area
  4. Weight

82.  The SI units of mechanical force are:

  1. Newtons or kilogram weight
  2. Newtons per square meter
  3. Pounds
  4. Pounds per square foot

83.  Bill and Sue push a box in opposing directions with a force of 5 lb and 7 lb respectively. What is the magnitude of the resultant?

84.  Jose lifts a 150 lb. barbell 5’-6” vertically above the ground. How much work did he do?

85.  As a block is pushed across a table name at least 3 forces that act upon it.

86.  How much power would a machine designed to move 200 lb a distance of 6 ft in 3 sec produce?

87.  Work done by a torque is equal to the torque applied times the:

  1. Length of the arm
  2. Angle moved through
  3. Radius
  4. Diameter

88.  One horsepower is equal to:

  1. 6.28 ft lb/sec
  2. 9.8 ft lb/sec
  3. 550 ft lb/sec
  4. 746 ft lb/sec

89.  Tension, compression, bending and twisting are kinds of mechanical:

  1. Stress
  2. Torque
  3. Force
  4. Springs

90.  How much torque does a 30 lb force applied to the end of a 1.5 ft wrench produce?

91.  Jackie and Chris push a cart with a force of 7 lb and 8 lb respectively, in the same direction. What is the magnitude of the resultant?

  1. 1 lb
  2. 56 lbs
  3. 15 lbs
  4. 11 lbs

92.  Torque is a measurement of what kind of force?

Design Process and Analysis

93.  What is the first step in the design process?

94.  In the eight step design process, what do you do after you select the best solution?

95.  After you test and evaluate your prototype what do you do next?

96.  What is the name of the pushing force on a material?

97.  What is the name of a twisting force on a material?

98.  What is the name of the pulling force on a material?

99.  What is the name of the characteristic of a material that is easily deformed without breaking?

100.A push or pull causing or resisting movement is a/an ______.