43.  What is the center of gravity of a body?

44.  How is it found?

45.  Where is the center of gravity of a homogeneous body whose sides are all rectangles?

46.  What is the specific gravity of a body?

47.  What is the standard for solids and liquids?

48.  What for gases?

49.  What laws govern the pressure of liquids at rest?

50.  How do you find the number of gallons of water to the cubic foot?

51.  What is the weight of a gallon of water?

52.  What is the pressure per square inch on the side of a vessel at the depth of 10 feet below the surface of the water?

53.  What will be the theoretical volume of discharge per second from a reservoir through a pipe 1 foot in diameter, discharging at a depth of 100 feet below the surface of the water?

54.  How many gallons of water will be discharged through a pipe 1 foot in diameter, 328 feet long, head 131/2 feet, coefficient of flow = 0.007?

55.  State how many men are needed to make up a full party for a survey of a preliminary line or location of a public work, such as a railroad or aqueduct.

56.  State also their several duties.

57.  For what purpose is the magnetic needle used in surveying land?

58.  What is a traverse table and for what used?

59.  How do you set out a circular curved line upon the ground?

60.  If an obstacle occurs to alignment, state how you would overcome it upon straight lines, also upon curves.

61.  The radius of a curve being given, and angle of intersection of the two tangents, how do you find the length of the tangent from their intersection to the beginning of the curve?

62.  Describe an engineer’s transit, and name its adjustments.

63.  Describe a Y level, and name its adjustments.

64.  How many kinds of leveling rods do you know of?

65.  State how they are graduated, and how they can be read to the 1/1000 of a foot.

66.  Show a form of field-book for transit notes used when “running” curves, and place thereon notes of a 5 deg. curve for 1,000, with two intermediate “set-ups.”

67.  Show a form of level-book, and place therein sufficient figures to show your method.

68.  What are cross-sections?

69.  How do you set slope stakes for excavation and embankment?

70.  What is a grade line?

71.  What proportion of the breaking weight of a beam would you consider a safe load?

72.  With the load uniformly distributed, what fractional part of the whole weight may be considered, in all calculations, as being carried at the center?

73.  Suppose a beam supported at both ends, and take w = weight, l = length of beam, b = breadth, d = depth, s = breaking weight.  Express algebraically the value of s in terms of the other quantities.