OSHA 30-Hour Construction Outreach (knowledge check)
Focus Four: struck-by: practice questions
Our OSHA 30 Construction bank has 20 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
When must motor vehicles on a construction site be checked?
- Once a month by a mechanic, with a written record kept for a year
- Only when a defect is noticed
- At the beginning of each shift
- Once a year, at registration
Show the answer
C. At the beginning of each shift — All vehicles in use must be checked at the beginning of each shift for safe operating condition of brakes, steering, lights, horn, tires and other items.
Question 2
Suspended heavy machinery or parts held aloft by slings or jacks must be what before workers go under them?
- Substantially blocked or cribbed
- Painted with warning stripes
- Watched by a spotter only
- Raised higher so workers have more room to work beneath them
Show the answer
A. Substantially blocked or cribbed — Heavy machinery or parts suspended or held aloft by slings, hoists or jacks must be substantially blocked or cribbed before employees work under or between them.
Question 3
Under the crane rules, what must anyone who becomes aware of a safety problem do?
- Report it at the end of the shift to the site supervisor, who decides what to do
- Give the stop or emergency stop signal to the operator or signal person
- Wait for the competent person to arrive and decide what to do
- Climb onto the crane to tell the operator
Show the answer
B. Give the stop or emergency stop signal to the operator or signal person — Anyone who becomes aware of a safety problem must alert the operator or signal person by giving the stop or emergency stop signal, which the operator must obey.