OSHA Focus Four Hazards

Réussis tes devoirs et examens dès maintenant avec Quizwiz!

What is a positioning device system?

Harness rigged to allow worker to be supported on vertical surface with both hands free

Vertical lifelines limit free fall to how far?

2 feet or less

What do you need around dangerous equipment?

Guardrails

What's the maximum arresting force of a PFAS?

1,800 lbs

What systems should be provided at a leading edge of 6 feet or more?

1. Guard rail system 2. Safety net system 3. Fall arrest system

What do workers need when they are exposed to falling objects?

1. Hardhat 2. Barrier preventing objects from falling 3. Canopy structure 4. Barricade falling area from workers

Steps to create a safe job site from falls?

1. Inspect the job site and work surfaces for hazards 2. Determine that the work surfaces are strong 3. You find that work must be done near a 6 foot edge 4. Have guard rail systems constructed and inspected 5. Select and inspect the personal fall arrest system and make sure workers know how to use them 6. Begin work and ensure workers follow safe procedures

Whats the minimum diameter of a pipe top and mid rail?

1.5 inches

What's the minimum diameter of a top and mid rail?

1/4 inch

How far do you stay away from overhead electrical lines during clean up

10 feet

The Safety Net system must extend how far when it's installed 5-10 feet below the surface?

10 feet

Where are control lines erected in a Controlled Access Zone?

10-15 feet from edge

The Safety Net system must extend how far when it's installed more than 10 feet below the surface?

13 feet

In free fall, how far can a body travel in 3 seconds?

144 feet

In free fall, how far can a body travel in 1 second?

16 feet

Warning Line stanchions must withstand what force?

16 lbs at 30 inches

Guard rail systems must be able to withstand the force of how any pounds at any point?

200

What is the minimum breaking force of a Controlled Access Zone?

200 lbs

What is the diameter of a safety net drop test sand bag?

28-32 inches

What's the minimum diameter of a structural steel top and mid rail?

2x2x3/8 inch

Self-retracting lifelines have tensile load of how much weight?

3,000 lbs

Lifeline D rings have tensile load of how much weight?

3,600 lbs

What's the maximum deceleration distance of a PFAS?

3.5 feet

In free fall, how far can a body travel in 0.5 seconds?

4 feet

How many pounds are safety net drop test sand bags?

400 lbs

What's the minimum drop distance for safety net drop test sand bags?

42 inches

What height is the top rail of a guard rail?

42 inches plus or minus 3 inches

How many pounds of force should the anchor point of a PFAS withstand?

5,000 lbs

Lifeline D rings have tensile strength of how much weight?

5,000 lbs

Vertical Lifelines have breaking strength of how much weight?

5,000 lbs

Toe boards must withstand what weight?

50 lbs

Warning Line stanchions must have a minimum tensile strength of what?

500 lbs

What's the minimum breaking weight of safety net?

5000 lbs

What's the maximum distance you can fall with a PFAS?

6 feet

Where are flags located in a Controlled Access Zone?

6 foot intervals

When more than one safety net is connected, the connection can't be more than how far apart?

6 inches

In free fall, how far can a body travel in 2 seconds?

64 feet

The Safety Net system must extend how far when it's installed 5 feet below the surface?

8 feet

What is a Safety Monitoring System?

A competent person responsible for recognizing and warning employees of fall hazards

What is a Fall Protection Plan?

A plan when normal fall protection systems are not feasible or would be more dangerous

What is a Controlled Access Zone (CAZ)?

An area below a brick laying or related work where only qualified people can be

What is a Warning Line System?

Barrier erected on a roof to warn workers that they are approaching an unprotected edge

Where is a Controlled Access Zone located?

Between 6-25 feet away from unprotected edge

What are the three parts of a PFAS?

Body harness, shock absorbing lanyard, secure anchors

What has to be added to wire rope guard rails?

Flags

Whats the first step for fall prevention?

Employer determining that the walks surfaces have the strength to support workers

How often should a warning line be flagged?

Every 6 feet

How often do you need to test safety nets?

Every 6 months, after repair, after moving, after installation

What is the leading cause of fatalities in construction?

Falls

What is an ARC flash also called?

Incident Energy

How do you know an electrical cord is safe for construction?

Marked National Electric Code Article 400.6 every 24 inches. Also marked with an "S"

What's the maximum mesh opening of safety net?

Must not exceed 36 inches or be longer than 6 inches on any side

How low can a Warning Line be placed?

No less than 34 inches from work surface

How far can Safety Net systems be installed below the surface?

No more than 30 feet

How high can a Warning Line be placed?

No more than 39 inches from work surface

Whats the minimum opening in guard rail systems?

Not more than 19 inches

What's the minimum distance between intermediate members used between posts?

Not more than 19 inches apart

How often do you install flags on top rail?

Not more than 6 feet

What's the minimum distance between a post made of structural steel?

Not more than 8 feet

Whats the minimum distance between a post made of pipe?

Not more than 8 feet

What is a PFAS?

Personal Fall Arrest System

What is required for hoisting areas if guard rail has to be removed to hoist?

Personal fall arrest system

What are the three parts of a guard rail?

Top rail, mid rail and posts and when necessary toe board

All covers must withstand what weight?

Twice the expected weight

When do you need fall protection?

When the exposure is 6 feet or more

When do you need mid rails in a guard rail?

When there is no wall of at least 21 inches

When do you protect window openings?

When they are at least 6 feet high and the bottom edge is less than 39 inches above walking height

What can guard rails be made of?

Wood, pipe, steel or wire rope

Whats required over covered walkways of at least 6 feet deep?

guardrails

Where are mid rails installed?

midway between top rail and walking level

How much weight does a positioning device system need to carry?

twice the impact load or 3,000 lbs whichever is greater


Ensembles d'études connexes

Chapter 8 Project Quality Management

View Set

Types of life policies and Annuities

View Set

Chapter 17. Understanding Accounting and Financial Information

View Set

Chapter 11: Laws and Rules - Connecticut

View Set

NCLEX PN - Nutrition NCLEX Questions

View Set

marketing test one Chapter Three

View Set

NRRPT Prep Detection and Measurement

View Set

OM CH 2 Operations Strategy in a Global Environment

View Set

Chapter 27: The Child with Cerebral Dysfunction

View Set