mod 1.1 Flashcards by Apple Jhoice Pastrana

Common construction hazards (9)

Working at heights
Excavations/ trenching
Demolition
Hot work activities
Confined space
Electricals
Machineries, equipment, vehicles
Chemicals
Hazardous energy

How well did you know this?

Not at all

Perfectly

3 types of construction hazards controls

Hazard identification
Risk assessment
Control

How well did you know this?

Not at all

Perfectly

3 types of Control

-develop controls
-implement controls
-evaluate controls

How well did you know this?

Not at all

Perfectly

Hazard control hierarchy (5)

-elimination
-substitution
-engineering
-administrative
-PPE

How well did you know this?

Not at all

Perfectly

Risk management process (5)

-identify hazards
-analyze the consequences
-develop solutions
-implement hazard controls and system
-evaluate effectiveness of controls

How well did you know this?

Not at all

Perfectly

Means means work in any
place
where,
if
there
were
no
precautions in place, a person could fall
a distance liable to cause personal
injury (

Work at height

How well did you know this?

Not at all

Perfectly

is any height including at or
below ground level, from which a fall
could cause a personal injury.

Height

How well did you know this?

Not at all

Perfectly

Main risk associated with working at height (2)

Worker falling from height.
Object falling from height onto someone below

How well did you know this?

Not at all

Perfectly

is a vertical or inclined
set of rungs or steps.

Ladders

How well did you know this?

Not at all

Perfectly

7 types of ladder

-step
-single
-twin front
-extension trestle
-extension
-Orchard ladder
-Fixed ladders

How well did you know this?

Not at all

Perfectly

Temporary
elevated platform
(supported or
suspended) and its
supporting structure
(including points of
anchorage).

Scaffold

How well did you know this?

Not at all

Perfectly

Used for
supporting
employees or
materials or both.

Scaffold

How well did you know this?

Not at all

Perfectly

Factors to consider before working at heights:(3)

The height of the task,
The duration and frequency of the task; and
The condition of the surface being worked on

How well did you know this?

Not at all

Perfectly

Basic Principles for Work-at-Heights Safety: (3)

-avoid
-prevent
-minimize

How well did you know this?

Not at all

Perfectly

Hierarchy of Fall Protection: (6)

-hazard elimination
-guardrails, protective covers, and warning barriers
-travel restraint system
-fall restricting system
-fall arrest system
-safety net

How well did you know this?

Not at all

Perfectly

Standard guardrails which have a top rail, intermediate rail, toe board, and posts
and a vertical height of 39” to 45” from upper surface of top rail to floor, platform,
runway or ramp level and the ends of the rails shall not overhang the terminal posts.

Fall-restraint protection

How well did you know this?

Not at all

Perfectly

personal protection to limit arrested falls to less than 15 feet.

Fall-arrest system

2 types fall-arrest system

-shock-absorbing lanyard
-self- restricting lanyard

Suspension trauma (3)

-brains
-heart
-legs

Parts of Fall-arrest system

Anchorage Devices
Body Support: Full body harness
Connectors

2 types of connectors

a. Shock-absorbing
lanyards and
b. Self-retracting lifelines.

Is a net to protect people from
injury after falling from heights
by limiting the distance they
fall, and deflecting to dissipate
the impact energy. The term
also refers to devices for
arresting
falling
or
flying
objects for the safety of
people beyond or below the
net

Safety net

is any man-made cut,
cavity, trench, or depression in the
Earth’s surface formed by earth
removal.

Excavation

is defined as a narrow
excavation (in relation to its length)
made below the surface of the
ground. In general, the depth of a
trench is greater than its width, but
the width of a trench (measured at
the bottom) is not greater than 15
feet (4.6 m).

Trench

3 types of PROTECTIVE SYSTEMS FOR EXCAVATIONS/TRENCHING:

-SLOPE or bench trench walls -SHORE trench walls with support -SHIELD trench walls with trench boxes

This means the sides of the hole open out from the excavation. The type of soil determines the required angle.

SLOPE or bench trench walls

This supports the walls of the excavation. Shoring is made up of walls, crossbraces and uprights, and must be installed from the top down and removed from the bottom up.

SHORE trench walls with support -

Shielding involves trench boxes or trench shields that are placed in the excavation to prevent the sides of a trench from caving in. The worker is only protected while in the “box.”

SHIELD trench walls with trench boxes

Some boxes can be moved throughout the work process. The shield must extend at least 18 inches from the top of the slope of the trench.

SHIELD trench walls with trench boxes

is the dismantling, razing, destroying or wrecking of any building or structure or any part thereof.

Demolition

3 Basic Principles for Demolition Safety:

1. Plan ahead to get the job done safely. 2. Provide the right protection and equipment 3. Train all employees about hazards and how to use the equipment safely

is any work that involves burning, welding, using fire- or spark-producing tools, or that produces a source of ignition.

Hot work

process of permanently joining two or more materials together , usually metals, by heat or pressure or both

Welding

is a metal-joining process in which two or more metal items are joined together by melting and flowing a filler metal into the joint, the filler metal having a lower melting point than the adjoining metal.

Brazing

is a process in which two or more items (usually metal) are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal.

Soldering

is the separation or opening of a physical object, into two or more portions, through the application of an acutely directed force.

Cutting

is an abrasive machining process that uses a grinding wheel as the cutting tool. Grinding is a subset of cutting, as grinding is a true metal-cutting process.

Grinding

is a cutting process that uses a drill bit to cut a hole of circular crosssection in solid materials.

Drilling

Common Hot work Hazards

• Hot/molten metals/materials • Open flame • Extreme heat • Flying particles/chips/sparks • Compressed gases • Flammable materials • Chemical/Toxic fumes/gases (containing heavy metals) • Noise • Electricals • Sharp objects • Tools and equipment • UV light

Common Risks in Hot works

• Arc eye/flash burns • Skin burns • Asphyxia • Health problems such as respiratory illness, neurological problems • Fires/explosions • Electrocution

3 Basic Hot works Hazards Control

-Permit System/Job Safety Analysis -Fire Watch and Emergency Response Plan -Personal Protective Equipment