Practice 1 Flashcards
A transit can measure?
Horizontal and vertical angles
If all your diagonals are square in the design of a structure is said to be a ——
Square
Which of the following is an instrument used by builders to determine difference in elevation?
Builder’s level
What is the recommended limit on vertical step footings?
2’
Simple slope or benched slope excavation deeper than ——‘ must be designed by a registered engineer.
20’
The top of the foundation wall must be at or above a minimum height set by code. The distance is often at least—-“ above the finished grade.
8”
Which additive would be used to make concrete set up at slower rate?
Retarding admixture
What do air-entraining admixture improve within a concrete mixture?
Workability
What would be mixed into a concrete to control the wear resistance and estabilice of concrete?
Water
Which of the following is true regarding the slump of concrete?
The greater the slump, the wetter the concrete.
What is the diameter in inches for a #5 rebar.
5/8
Which type of mortar has average strength for most general masonry work above grade?
Type N
Which mortar is used primarily for interior wall?
Type O
In hot weather, how much time do you have to use mortar once it is mixed?
2-1/2 hours
What is placed over window and door openings if the wall is concrete block?
Lintel
What type of mortar is recommended for masonry below grade?
M
What should be placed below the bottom of the sheathing and framing at the brick course?
Flashing
What should be placed with every second course when you are building a stack bond pattern block wall?
Joint reinforcement
In what ways does lumber usually shrink?
Width and length
What needs to be secured before you can put in batter board?
Grade & corners
What part of a foundation wall is determined by the top of the batter board?
Height
You have two rods labeled “A” and “B” and you are doing a survey of the land. If the “A” rod show 5’ and “B” rod shows 7’6” then the ground point of “B” is ___ than the ground point of “A”.
2’6” lower
When preparing subgrade, any fill should be compacted in lifts no more than ___” deep
6
When excavating, the soil that has been removed must be piled at least___’ away from the edge of the excavation.
2’