Bu advance CH4 Flashcards
1
Q
- Concrete masonry walls are laid out so as to make maximum use of full- and half-length units. What is this called? (Page 4-3)
A
modular planning
2
Q
- How many cubic feet of raw materials does it take to make 1 cubic yard of mortar? (Page 4-6)
A
38
3
Q
- A typical mortar mixer has a capacity of mixing 4 to 7 cubic feet per batch, and each batch must be mixed for a minimum of how many minutes? (Page 4-7)
A
3
4
Q
- What type of brick is made from pit-run clay with no attempt at color control and no special surface treatment like glazing or enameling? (Page 4-7)
A
common
5
Q
- What grade of brick is designed to withstand exposure to below-freezing temperatures in a moist climate like that of the northern regions of the United States? (Page 4-9)
A
SW
6
Q
- What grade of brick is primarily intended for interior or backup brick? (Page 4-9)
A
NW
7
Q
- In most cases the tensile strength of structural clay tile masonry is less than what percent of the compressive strength? (Page 4-12)
A
10%
8
Q
- Tile that will absorb no more than what percent of its weight of water has never given unsatisfactory performance in resisting the effect of freezing and thawing action? (Page 4-12)
A
16%
9
Q
- Partition walls of structural clay tile 6 inches thick will resits a fire for 1 hour provided the fire produces a temperature of not more than what temperature? (Page 4-12)
A
1700 degrees F
10
Q
- Partition walls of structural clay tile 6 inches thick will resits a fire for 1 hour provided the fire produces a temperature of not more than what temperature? (Page 4-12)
A
125
11
Q
- Structural load bearing tile is made from 4 to how many inch thicknesses with various face dimensions? (Page 4-12)
A
12
12
Q
- What is the crudest of all types of stonework? (Page 4-13)
A
random rubble
13
Q
- The mortar used in stone masonry may be composed of Portland cement and sand in the proportions of 1 part cement to how many parts sand by volume? (Page 4-14)
A
3
