31. According to OSHA 1926.1419, who must alert the crane operator of a safety problem by giving the stop or emergency stop signal? Link: https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.1419

(2.5 Points)

The competent person

The qualified person

The signal person

Anyone who becomes aware of a safety problem

32. According to OSHA 1926.1408, if using Table A minimum clearance distances, which of the following is the minimum clearance distance (in feet) for a crane when operating near a powerline rated at 360kV? Link:https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.1408

(2.5 Points)

25

20

10

35

33. When confronted with a hazard on a job site, which of the Hierarchy of Controls should you FIRST consider?

(2.5 Points)

Administrative - train the workers to be aware of the hazard

Elimination - remove the hazard entirely

Substitution - use a means/method that is safer

Personal Protective Equipment - give the exposed workers PPE to protect them

34. Referring to the Hierarchy of Controls, installing a temporary guardrail on a floor perimeter is what type of control? See this link for more about the Hierarchy of Controls:https://www.cdc.gov/niosh/topics/hierarchy/default.html

(2.5 Points)

Administrative

Substitution

Personal Protective Equipment

Engineering

35. How much electrical amperage does it take to kill someone?

(2.5 Points)

15 - 20 amps

1 milliamp

2 milliamps

Less than 1 amp

36. Based upon our discussion in week two, which of the options below best describes a "willful" OSHA citation?

(2.5 Points)

The employer did not know and could not have known of the hazard for which OSHA issued the citation.

The employer's competent person identified the hazard and intentionally chose to ignore it and instead exposed his employees to the hazard.

The employer's employees were not even on site when OSHA showed up and therefore there was no exposure so the employees willfully chose to not work on the site.

OSHA willfully chose to issue a citation to the employer.

37. Based on our discussion in Week 1, which of the following best defines "hazard"?

(2.5 Points)

Something that violates OSHA

An unprotected side or edge

An overloaded crane

A potential source of harm

38. According to Table 1 in OSHA 1926.1153, what is the minimum airflow that a dust collector must provide for a worker using a handheld grinder for tuckpointing brick? Link: https://www.osha.gov/laws-regs/regulations/standardnumber/1926/1926.1153

(2.5 Points)

25 cubic feet per minute

30 cubic feet per minute

20 cubic feet per minute

50 cubic feet per minute

39. If encountering a piece of equipment that has contacted overhead power lines, which of the following should you NOT do?

(2.5 Points)

Approach the equipment to talk with the operator and calm them down.

Immediately call 911 and report the exact situation.

Keep everyone a safe distance from the scene.

Only approach the operator after the utility owner (e.g. PECO) arrives and safely deenergizes the overhead lines and tells you it's safe to approach.

40. As the lead PM in charge of the MEP work on a mid-rise building project, you're leading a pre-mobilization planning meeting with your mechanical subcontractor. You ask them what size crane they will need to set two large HVAC units on the roof of the building under construction. They tell you that they "hope to get away with a 250-ton crane" but they're not sure if it will have enough capacity. After reviewing their plan, you suggest that they rent a larger crane to ensure that it will have sufficient capacity to safely lift and set the units. You tell them that you understand this will add to the cost of the project but that you're not willing to risk the attempt with the smaller crane. From our discussion on risk, which of the following BEST applies?

(2.5 Points)

The reduction in risk from using the larger crane is worth the additional rental cost for the larger crane. This is an example of reducing the level of risk to as low as reasonably practicable.

The reduction in risk from using the larger crane is not worth the additional rental cost for the larger crane. This is an example of reducing the level of risk to as low as reasonably practicable.

The reduction in risk from using the larger crane is worth the additional rental cost for the larger crane. This is an example of implementing the hierarchy of controls.

The mechanical subcontractor should consider using a helicopter to set the HVAC units on the roof.