CSM 4623 Safety Test 1

Questions and Answers

What type of soil is the MOST STABLE for excavation?

Type B

Type C

Type A (correct)

All accidents can be prevented according to OSHA.

True

A mining company is covered by OSHA as a contractor.

False

What are the OSHA inspection priorities?

Imminent danger, Fatality or hospitalizations, Worker complaints/referrals, Targeted inspections. Signup and view all the answers

What are the types of OSHA violations?

Willful, Serious, Other-than-serious, Repeated. Signup and view all the answers

Which of the following are included in the hierarchy of controls as given in ANSI Z10? (Select all that apply)

Warnings Signup and view all the answers

What are the key elements of an effective safety and health management program?

Management leadership, Employee involvement, Hazard assessment, Hazard control, Worker training. Signup and view all the answers

Which of the following are examples of PPE that an employer must provide? (Select all that apply)

Safety glasses Signup and view all the answers

What are the major causes of injuries/fatalities in the construction industry?

Falls, Struck by, Caught in Between, Electrical. Signup and view all the answers

In general, fall protection must be provided for construction workers who are working on surfaces _____________ ft above the lower level.

6 Signup and view all the answers

For workers on scaffolds, fall protection must be provided if they are working _____________ ft above a lower level.

10 Signup and view all the answers

The top of a ladder must extend at least _____________ ft above the surface you are climbing onto.

3 Signup and view all the answers

OSHA requires that anchor points for PFA systems must be capable of supporting _____________ lbs or twice the intended load.

5,000 Signup and view all the answers

Any hole larger than _ x _ must be covered by material capable of supporting twice the intended load.

2" x 2" Signup and view all the answers

Window openings require the installation of a guardrail system if the bottom sill height is less than _____________ inches.

39 Signup and view all the answers

What are basic ways that an employer can protect workers from falls? (Select all that apply)

Guardrails Signup and view all the answers

What are the required components of a guardrail with their heights?

Foot Board 3.5", Mid Rail 21", Top Rail 42". Signup and view all the answers

What are the major types of Struck By accidents? (Select all that apply)

Struck by falling Signup and view all the answers

Explain how Struck By and Caught In/Between incidents differ in definition.

Struck by means an injury caused by contact between the person and an object; caught in between is the injury when a person is squeezed or compressed between machinery. Signup and view all the answers

What are the major principles of protection when workers are in a work zone with heavy equipment?

Stay clear of lifter loads and never work under a suspended load; Beware of unbalanced loads. Signup and view all the answers

Which of the following are essential PPE items when working with power tools? (Select all that apply)

Safety glasses Signup and view all the answers

As defined in 1926.651(c)(2), a safe means of egress shall be located in trench excavations that are _____________ ft or more in depth.

4 Signup and view all the answers

No more than _____________ ft of lateral travel for employees should be required in trench excavations.

25 Signup and view all the answers

What does BE SAFE define in relation to electrocution hazards in the Construction Industry?

Burns, Electrocution, Shocks, Arc Flash, Fire, Explosion Signup and view all the answers

What are the major protection methods from electrical hazards as they are described in OSHA Focus Four Document?

Maintain a safe distance from overhead power lines, Use ground-fault circuit interrupters (GFCI), Inspect portable tools and extension cords, Use power tools and equipment as designed, Follow lockout/tagout procedures. Signup and view all the answers

What is LOTO (lockout/tagout)?

LOTO practices and procedures safeguard workers from hazardous energy releases. Signup and view all the answers

Study Notes

Soil Types

Soils classified as Type A, Type B, or Type C based on stability.
Type A soil: Most stable, cohesive with a compressive strength of 1.5 tons per square foot or greater (e.g., clay, silty clay).
Type B soil: Medium stability; compressive strength between 0.5 to 1.5 tons per square foot (e.g., angular gravel, silt).
Type C soil: Least stable; compressive strength of 0.5 tons per square foot or less (e.g., gravel, sand).
Visual tests can help assess soil stability before excavation.

Accident Prevention

All accidents are preventable according to OSHA.

OSHA Coverage

Mining companies operating as contractors are not covered by OSHA.

OSHA Inspection Priorities

Imminent danger situations.
Fatalities or serious injuries.
Worker complaints or referrals.
Targeted inspections based on specific concerns.

Types of OSHA Violations

Willful violations: Intentional disregard for safety.
Serious violations: Substantial probability of death or serious injury.
Other-than-serious violations: No substantial probability but still of concern.
Repeated violations: Similar violations found upon inspection.

Hierarchy of Controls (ANSI Z10)

Elimination: Remove the hazard entirely.
Substitution: Replace hazard with a safer alternative.
Engineering Controls: Isolate workers from hazards.
Warnings: Signals or alarms to alert workers.
Administrative Controls: Policies and procedures to minimize exposure.
Personal Protection: Use of PPE to protect workers.

Effective Safety and Health Management Program

Essential elements include management leadership, employee involvement, hazard assessment, hazard control, and worker training.

Necessary PPE Examples

Employers must provide metatarsal foot protection, rubber boots with steel toes, and goggles/face shields.

Major Causes of Construction Injuries/Fatalities

Common causes include falls, being struck by objects, being caught in between structures, and electrical incidents.

Fall Protection Requirements

Fall protection required at unprotected edges and sides over 6 feet.
Fall protection for scaffold workers at heights of 10 feet or higher.

Ladder Safety

Ladder tops must extend at least 3 feet above the climbing surface.

Anchor Points for PFAS (Personal Fall Arrest Systems)

Must support at least 5,000 lbs or double the intended load.

Hole Cover Requirements

Any hole larger than 2"x2" must be covered with material supporting twice the intended load.

Window Openings Safety

Guardrails are required for window openings with a bottom sill under 39 inches in height.

Fall Protection Methods

Basic protection measures include guardrails, covers, and personal fall arrest systems (PFAS).

Guardrail Components

Required heights: Foot Board at 3.5 inches, Mid Rail at 21 inches, Top Rail at 42 inches.

Struck By Accident Types

Struck by flying: E.g., projectiles.
Struck by falling: E.g., falling bricks.
Struck by swinging: E.g., impact from a wrecking ball.
Struck by rolling: E.g., being hit by vehicles.

Struck By vs Caught In/Between Definitions

Struck by injuries occur due to contact with moving objects.
Caught in/between injuries result from being compressed between objects or machinery.

Protection Principles in Heavy Equipment Work Zones

Maintain distance from lifting loads; avoid working under suspended loads.
Be cautious of unbalanced loads.

Essential PPE for Power Tool Usage

Required items include safety gloves and safety glasses.

Egress in Trench Excavations

A safe means of egress must be present in excavations of 4 feet or more deep; workers should not travel more than 25 feet laterally.

BE SAFE Electrocution Hazards

B: Burns
E: Electrocution
S: Shocks
A: Arc Flash
F: Fire
E: Explosion

Electrical Hazard Protection Methods

Maintain safe distance from overhead power lines.
Utilize ground-fault circuit interrupters (GFCIs).
Regularly inspect tools and cords.
Operate equipment as designed.
Adhere to lockout/tagout procedures.

Lockout/Tagout (LOTO) Definition

LOTO practices prevent hazardous energy release during maintenance, ensuring worker safety by disabling machinery effectively.

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Description

Prepare for your CSM 4623 safety exam with these flashcards focusing on soil types. Explore the classifications of soils and their properties, such as Type A, Type B, and Type C. This quiz will help reinforce your understanding of excavation safety and the characteristics of various soil types.