Deck 16: Builders Level and Transit

Question 1

Which of the following is the fall or slope of a line in reference to the horizontal plane?

A)angle
B)trench
C)grade
D)intercept

Answer 1

C

Question 2

A(n)____________________ is a horizontal board supported by two stakes usually placed at regular intervals across a trench or at the corner of a building foundation.

Answer 2

batter board

Question 3

A person must be completely buried to suffocate.

Answer 3

False

Question 4

A person can live only minutes without breathing.

Question 5

If the elevation of point A = 280.50 feet, the reading of level rod at A = 1.75 feet, and the reading of level rod at B = 0.75 feet, what is the elevation of point B?

A)290.50 feet
B)279.50 feet
C)281.50 feet
D)291.75 feet

Question 6

If a foundation is square, all points can be laid out without moving the tripod. What mathematical formula would you use?

Question 7

Which soil test uses a spring-operated instrument that is pushed into the soil sample?

A)plasticity
B)thumb penetration
C)pocket penetrometer
D)sedimentation

Question 8

To be defined as a trench, the width of an excavation can be no more than how many feet?

A)5
B)15
C)10
D)20

Question 9

If the elevation of point A = 360.10 feet, the reading of level rod at A = 4.60 feet, the reading of level rod at B = 3.25 feet, what is the elevation of point B?

A)361.65 feet
B)361.45 feet
C)358.75 feet
D)358.45 feet

Question 10

How do you level the telescope on a builder's level or transit?

Question 11

From a benchmark, the reading at the telescope crosshairs is the ____________________.

Question 12

Which soil test should be conducted on an undisturbed soil sample such as a large clump of soil, as soon as practicable after excavation?

A)plasticity
B)thumb penetration
C)pocket penetrometer
D)sedimentation

Question 13

If the elevation of point A = 750.50 feet, the reading of level rod at A = 2.50 feet, the reading of level rod at B = -2.75 feet, what is the elevation of point B?

A)755.75 feet
B)750.25 feet
C)750.75 feet
D)755.25 feet

Question 14

Main sewers are installed with ____________________ to define the alignment and slope.

Question 15

Which of the following is true regarding trenches?

A)depth is greater than width
B)depth is equal to width
C)depth is less than width
D)none of the above

Question 16

Which soil test measures how cohesive the soil is by rolling a moist sample of the soil into a ball?

A)plasticity
B)thumb penetration
C)pocket penetrometer
D)sedimentation

Question 17

Workers need what percentage of oxygen to stay alive?

A)10
B)75
C)25
D)19

Question 18

OSHA safety guidelines must be followed unless a trench is excavated in stable rock.

Question 19

Slope can be described as percent grade, based on a length of 100 feet.

Question 20

List three common gases that are heavier than air.