Chapter 2: Concrete And Masonry Construction Flashcards
An area alongside a masonry wall under construction that is clearly demarcated to limit access by employees best defines which of the following.
A. Controlled Access Zone
B. Controlled Employee Zone
C. Limited Access Zone
D. Qualified Employee Access Zone
C. Limited Access Zone
No construction loads shall be placed on a concrete structure or portion of a concrete structure unless the employer determines, based on information received from a person who is qualified in ______, that the structure or portion of the structure is capable of supporting the loads.
A. Building Construction
B. Building Design
C. Structural Design
D. Structural Work
C. Structural Design
All protruding reinforcing steel, onto and into which employees could fall, must be ______ to eliminate the hazard of impalement.
A. Guarded
B. Isolated
C. Protected
D. Tagged
A. Guarded
Determine which employee(s) is/are permitted to work under concrete buckets while buckets are being elevated or lowered into position.
A. No employee
B. Only that/those employee(s) assigned to open the concrete bucket and dump the concrete
C. Only that/those employee(s) guiding the concrete buckets while they are being elevated or lowered into position
D. Any of the above.
A. No employee
No employee shall be permitted to perform maintenance or repair on equipment (such as compressors, mixers, screens, or pumps used for concrete and masonry construction activities) where the inadvertent operation of the equipment could occur and cause injury, unless all potentially hazardous energy sources have been locked out and tagged.
True or False
True
The limited access zone must remain in place until the wall is adequately supported to prevent overturning and collapse unless the height of the wall is over ______, in which case, the limited access zone must remain in place until the applicable requirements have been met.
A. 4’
B. 6’
C. 8’
D. 10’
C. 8’
All masonry walls over ______ in height must be adequately braced to prevent overturning and to prevent collapse unless the wall is adequately supported so that it will not overturn or collapse. The bracing must remain in place until permanent supporting elements of the structure are in place.
A. 4’
B. 6’
C. 8’
D. 10’
C. 8’
A method of concrete construction in which floor and roof slabs are cast on or at ground level and, using jacks, lifted into position best defines a ______ construction operation.
A. Jacked slab
B. Lift jacks
C. Lift slab
D. Precast slab
C. Lift slab
