Take This Construction Safety Quiz On Concrete And Masonry!
Masonry and Concrete both the terms are used in the construction of the building. Since time immemorial, both concrete and masonry are part of residential construction work and still in demand. Take this quiz to test your knowledge of construction safety pertaining to concrete and masonry. Read the questions carefully and answer. So, let's try out the quiz. All the best!
Questions and Answers
- 1.
When can a construction load be placed on a concrete structure?
- A.
After the pour, it is safe to place a load
- B.
The next day, it is safe to place a load
- C.
When the employer determines it is safe through inspection and data
- D.
After 7 days, it is safe to place a load
Correct Answer
C. When the employer determines it is safe through inspection and dataExplanation
The correct answer states that a construction load can be placed on a concrete structure when the employer determines it is safe through inspection and data. This means that the decision to place a load on the structure is based on the employer's assessment of its safety, which is determined through thorough inspection and analysis of relevant data. This approach ensures that the structure is capable of bearing the load without any risk of failure or damage.Rate this question:
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- 2.
How much weight are lifting inserts on precast concrete required to be capable of supporting?
- A.
Must be able to support the intended load
- B.
Able to support 4 times the load
- C.
Able to support 2 times the load
- D.
None of the Above
Correct Answer
B. Able to support 4 times the loadExplanation
The lifting inserts on precast concrete are required to be capable of supporting 4 times the load. This is because the inserts need to have a higher load capacity in order to ensure the safety and stability of the precast concrete during lifting and transportation. By having a higher load capacity, the inserts can withstand any unexpected or excessive loads that may occur during the lifting process, reducing the risk of failure or damage to the precast concrete structure.Rate this question:
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- 3.
What reinforcing steel needs to be guarded with caps to protect from impalement?
- A.
All vertical rebar that could be fallen on to
- B.
All horizontal rebar that could be fallen on to or could create an abrasion hazard
- C.
Both A and B
- D.
None of the Above
Correct Answer
C. Both A and BExplanation
Both A and B. Both vertical and horizontal rebar need to be guarded with caps to protect from impalement. Vertical rebar that could potentially be fallen on to can pose a serious impalement hazard, while horizontal rebar that could be fallen on to or create an abrasion hazard also needs to be protected. Therefore, both types of rebar require caps for safety purposes.Rate this question:
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- 4.
“Erected shoring equipment shall be inspected_____________.”
- A.
Immediately prior to concrete placement
- B.
During concrete placement
- C.
Immediately after concrete placement
- D.
All of the Above
Correct Answer
D. All of the AboveExplanation
The correct answer is "All of the Above". Erected shoring equipment should be inspected immediately prior to concrete placement to ensure its stability and safety. It should also be inspected during concrete placement to check for any potential issues or failures. Lastly, it should be inspected immediately after concrete placement to ensure that it has not been damaged or compromised during the process. Inspecting the shoring equipment at each of these stages is crucial to ensure the safety of workers and the integrity of the structure.Rate this question:
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- 5.
“All masonry walls over _____ feet in height shall be adequately braced to prevent overturning.”
- A.
8
- B.
6
- C.
5
- D.
4
Correct Answer
A. 8Explanation
Masonry walls over 8 feet in height need to be adequately braced to prevent overturning. This means that additional support or reinforcement is required to ensure that the wall remains stable and does not topple over. Walls of this height are more susceptible to the forces of gravity and external pressures, so proper bracing is necessary to maintain the structural integrity of the wall.Rate this question:
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- 6.
How big does a limited access zone need to be for construction of a masonry wall?
- A.
4 feet around wall
- B.
Large enough to allow for scaffolding
- C.
The height and the entire width of the wall
- D.
The height and width of the wall plus a four foot safety zone
Correct Answer
D. The height and width of the wall plus a four foot safety zoneExplanation
A limited access zone needs to be the height and width of the wall plus a four foot safety zone. This is necessary to ensure that there is enough space for construction workers to safely work around the wall and to allow for the installation of scaffolding if needed. The additional four foot safety zone provides a buffer area to prevent accidents and allows for maneuverability during construction activities.Rate this question:
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- 7.
Which of the following are hazards of post-tensioning? (Mark all that apply)
- A.
Stored energy
- B.
Lacerations
- C.
Impalement
- D.
Pinch Points
- E.
Hydraulic Failure
Correct Answer(s)
A. Stored energy
B. Lacerations
C. Impalement
D. Pinch Points
E. Hydraulic FailureExplanation
Post-tensioning involves the use of high tension cables or rods to reinforce concrete structures. The stored energy in these tensioned cables can be hazardous if released suddenly, causing injury or damage. Lacerations can occur if workers come into contact with sharp edges or protruding cables during the post-tensioning process. Impalement is a hazard when workers are exposed to the risk of being impaled by the tensioned cables. Pinch points can also be present during the tensioning process, posing a risk of crushing or trapping body parts. Hydraulic failure can lead to sudden release of tension, causing injury or damage.Rate this question:
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- 8.
“______________________ shall be erected to limit employee access to post tensioning area during tensioning operations.”
- A.
Signs and barriers
- B.
Caution Tape
- C.
Scaffolding
- D.
Trenches
Correct Answer
A. Signs and barriersExplanation
Signs and barriers should be erected to limit employee access to the post tensioning area during tensioning operations. This is because signs and barriers are commonly used to indicate restricted or hazardous areas, ensuring that employees are aware of the potential dangers and preventing them from entering the area. By using signs and barriers, employers can effectively communicate the need to stay away from the post tensioning area and minimize the risk of accidents or injuries during tensioning operations.Rate this question:
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- 9.
“_____________________ shall be permitted to be behind the jack during tensioning operations.”
- A.
Supervisor
- B.
Laborer
- C.
Inspector
- D.
No Employee
Correct Answer
D. No EmployeeExplanation
During tensioning operations, it is important to ensure the safety of all individuals involved. Having any employee behind the jack during this process can pose a significant risk as they may be in the direct line of force or in danger of being struck by any potential equipment failure. Therefore, it is necessary to prohibit the presence of any employee behind the jack during tensioning operations to prevent accidents and ensure a safe working environment.Rate this question:
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- 10.
When should a Concrete Mason wear a respirator?
- A.
When it is dusty
- B.
When we have determined that the concentration of dust would require the employee to wear a proper respirator
- C.
After the employee complains about the dusty conditions
- D.
No respirator is required for a Concrete Mason
Correct Answer
B. When we have determined that the concentration of dust would require the employee to wear a proper respiratorExplanation
A Concrete Mason should wear a respirator when it has been determined that the concentration of dust would require them to do so. This means that if the dust levels are high enough to pose a risk to the employee's health, they should wear a proper respirator to protect themselves from inhaling the dust particles. This determination should be based on a thorough assessment of the dust levels and the potential health hazards associated with it. Simply complaining about dusty conditions or assuming that no respirator is required is not sufficient, as the decision should be made based on objective measurements and analysis.Rate this question:
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