CON 252 Building Construction Method, Material, Equipment
1. Lime is added to masonry mortars because:
a) It increases strength
b) It improves workability
c) It adds color
d) It is required for the cementitious reaction
e) It is cheaper than cement
Ans: b
2. Which of the mortar joint profiles shown in the accompanying sketch is appropriate
for use in outdoor walls that will be exposed to freeze/thaw conditions?
a) A
b) B
c) C
d) D
e) E
Ans: d
3. Reducing embodied energy for bricks requires:
a) Firing at a lower temperature
b) Using fly-ash and steam curing
c) Using cement instead of clay
d) Including wood fibers in the mix
e) No drying of bricks before firing
Ans: b
4. Which brick manufacturing process produces a molded brick?
a) Stiff mud
b) Dry press
c) Rowlock
d) Corbelling
e) None of the above
Ans: b
Key – Test 3
CON 252 Building Construction Method, Material, Equipment
5. Set accelerators and retarders
a) Ease placement of wet mortar
b) Improve performance
c) Improve color
d) Improve water resistance
e) Adjust setting time in cold or hot weather
Ans: e
6. Which word does not belong with the others?
a) Stretcher
b) Header
c) Stile
d) Soldier
e) Rowlock
Ans: c
7. Which of the following takes typically about 40 – 150 hrs?
a) Lime Mortar
b) Soft Mud Process
c) Brick Firing
d) Stiff Mud Process
e) Dry Press Process
Ans: c
8. Higher brick kiln temperature leads to __________ bricks.
a) Stronger
b) Weaker
c) Darker
d) Larger
e) Less durable
Ans: c
9. Which of these statements is false?
a) Water absorption is important for paving brick
b) Solid brick must not contain any holes
c) Frogs permit a brick to cure more evenly
d) Hollow bricks are used for adding reinforcement
e) Firebricks are made from special clays
Ans: b
