Online Engineering Continuing Education Courses

Construction Pocket Guide

Quiz Questions:

1.	Which one of the following could be potential hazard to construction workers.

		Falls (from heights)
		Trench collapse
		Scaffold collapse
		Electric shock and arc flash/blast
		Failure to use proper personal protective equipment; and
		Repetitive motion injuries
		All of the above

2.	Which one of the following could help in fall protection.

		Using aerial lifts or elevated platforms to provide safer elevated working surfaces.
		Erect guardrails systems with toeboards and warning lines or install control line systems to protect workers near the edge of floors and roofs
		Cover floor holes
		Use safety net systems (body harnesses)
		All of the above

3.	The following could help to avoid trench collapses. Never enter an unprotected trench Always use a protective system for trench 5 feet deep or greater. Employ a registered professional engineer to design a protective system for trenches 20 feet deep or greater. Protective systems: Sloping to protect workers by cutting back the trench wall at an angle inclind away from the excavation not steeper than a height/depth ratio of 1 ½ : 1, according to the sloping requirements for the type of soil. Shoring to protect workers by installing supports to prevent soil movement for trenches that do not exceed 20 feet in depth. Shielding to protect workers by using trench boxes or other types of supports to prevent soil cave-ins. Always provide a way to exit a trench-such as a ladder, stairway or ramp-no more than 25 feet of lateral travel for employees in trench. Keep spoils at least two feet back from the edge of a trench. Make sure that trenches are inspected by a competent person prior to entry and after hazard-increasing event such as rain storm, vibrations or excessive surcharge loads.

		True
		False

4.	Hard hats can help to avoid injury from falling objects, bumping the head against fixed objects, or accidental head contact with electrical hazards.

		True
		False

5.	Safety toed footwear is worn to prevent crushed toes when working around heavy equipment or falling objects

		True
		False

6.	Scaffold may be without guardrails, mid rails and toe boards.

		True
		False

7.	Scaffold must be sound, rigid and sufficient to carry its own weight plus four times the maximum intended load without settling or displacement. It must be erected on solid footing.

		True
		False

8.	Scaffold must be at least 10 ft from electric power lines.

		True
		False

9.	_____________________ are another source of injuries and fatalities among construction workers.

		Ladders
		Stairways
		Ladders and stairways

10.	Cranes and derricks are restricted from operating within 10 feet of any electrical power line.

		True
		False

11.	Stairways having four or more risers or rising more than 30 inches do not really need to have any handrails.

		True
		False

12.	Never enter an unprotected trench.

		True
		False

13.	Anyone who wants to dig a trench 20 feet deep or greater need to employ a registered professional engineer to design a protective system for the it.

		True
		False