MONTALBAN 3 TERMS
21. An increase in soil density of a cohesive soil resulting from the expulsion of water from the soil's void spaces. A. Consolidation B. Compaction C. Tamping D. Contraction
a
24. ______is the process of removing air voids in concrete as it is placed. A. Consolidation B. Compaction C. Tamping D. Contraction
a
26. Slumps for concrete should not be: A. less than 25 mm or more than 100 mm. B. less than 50 mm or more than 100 mm. C. less than 15 mm or more than 60 mm. D. less than 30 mm or more than 75 mm.
a
14. _____is the occurrence of numerous fine hair cracks in the surface of a newly hardened slab to surface shrinkage. A. Scaling B. Crazing C. Dusting D. Spalling
b
17. The surface of newly placed concrete is struck off by moving a straightedge back and forth with a sawlike motion across the top of the forms and screeds. A. Floating B. Screeding C. Leveling D. Troweling
b
15. ______is the appearance of a powdery material on the surface of a newly hardened concrete slab A. Scaling B. Crazing C. Dusting D. Spalling
c
16. Bringing of a concrete surface to true grade with enough mortar to produce the desired finish. A. Floating B. Screeding C. Leveling D. Troweling
c
19. Constitute that portion of the written requirements for a building construction project that are contained in the divisions of a project manual. A. Construction plans B. Contract C. Specifications D. Shop Drawings
c
22. It occurs as concrete hardens, being greater in wet mixes. Curing helps to limit effects and therefore concrete in the actual structure should be thoroughly and continuously moistened for some considerable period after placing. A. Moisture content B. Concrete C. Shrinkage D. Compaction
c
25. Primary causes of poor concrete performance: I. Excessive Slump II. Consequent Bleeding III. Incorrect aggregate sizing IV. Segregation V. Weather ConditionA. II,III and IV only B. I,II and V only C. I,II and IV only D. All of the above
c
18. Is done on slabs that are to be left exposed or to receive thin finishes, such as resilient flooring, carpet, tile, or paint A. Floating B. Screeding C. Finishing D. Troweling
d
23. _______is pneumatically placed concrete, used primarily for swimming pools and other in ground and above ground free form structures and for repairing damage concrete. A. Shotcrete B. Pumpcrete C. Tremie D. Slip forming
A
20. The process of increasing the density of a soil by mechanically forcing the soil particles closer together, thereby expelling air from the void spaces in the soil. A. Consolidation B. Compaction C. Tamping D. Contraction
B
11. The process of giving natural soils enough abrasive resistance and shear strength to accommodate traffic or design loads A. Ground modification B. Trimming C. Grading D. Earthworks
a
13. _____is the breaking away of the hardened concrete surface of a slab to a depth of about 1.6 to 4.8 mm. It usually occurs at an early age of the slab. A. Scaling B. Crazing C. Dusting D. Spalling
a
12. The process of bringing each roadway layer to its final grade. A. Ground modification B. Trimming C. Grading D. Earthworks
b
10. ________ is the process of bringing earthwork to the desired shape and elevation. A. Ground modification C. Trimming B. Grading D. Earthworks
b
