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osh midterm > mod 1.1 > Flashcards

mod 1.1 Flashcards

1
Q

Common construction hazards (9)

A
  1. Working at heights
  2. Excavations/ trenching
  3. Demolition
  4. Hot work activities
  5. Confined space
  6. Electricals
  7. Machineries, equipment, vehicles
  8. Chemicals
  9. Hazardous energy
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2
Q

3 types of construction hazards controls

A
  1. Hazard identification
  2. Risk assessment
  3. Control
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3
Q

3 types of Control

A

-develop controls
-implement controls
-evaluate controls

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4
Q

Hazard control hierarchy (5)

A

-elimination
-substitution
-engineering
-administrative
-PPE

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5
Q

Risk management process (5)

A

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

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6
Q

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 (

A

Work at height

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7
Q

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

A

Height

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8
Q

Main risk associated with working at height (2)

A
  1. Worker falling from height.
  2. Object falling from height onto someone below
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9
Q

is a vertical or inclined
set of rungs or steps.

A

Ladders

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10
Q

7 types of ladder

A

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

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11
Q

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

A

Scaffold

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12
Q

Used for
supporting
employees or
materials or both.

A

Scaffold

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13
Q

Factors to consider before working at heights:(3)

A
  1. The height of the task,
  2. The duration and frequency of the task; and
  3. The condition of the surface being worked on
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14
Q

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

A

-avoid
-prevent
-minimize

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15
Q

Hierarchy of Fall Protection: (6)

A

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

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16
Q

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.

A

Fall-restraint protection

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17
Q

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

A

Fall-arrest system

18
Q

2 types fall-arrest system

A

-shock-absorbing lanyard
-self- restricting lanyard

19
Q

Suspension trauma (3)

A

-brains
-heart
-legs

20
Q

Parts of Fall-arrest system

A
  1. Anchorage Devices
  2. Body Support: Full body harness
  3. Connectors
21
Q

2 types of connectors

A

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

22
Q

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

A

Safety net

23
Q

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

A

Excavation

24
Q

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).

A

Trench

25
Q

3 types of PROTECTIVE SYSTEMS FOR EXCAVATIONS/TRENCHING:

A

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

26
Q

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

A

SLOPE or bench trench walls

27
Q

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.

A

SHORE trench walls with support -

28
Q

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.”

A

SHIELD trench walls with trench
boxes

29
Q

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.

A

SHIELD trench walls with trench
boxes

30
Q

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

A

Demolition

31
Q

3 Basic Principles for Demolition Safety:

A
  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
32
Q

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

A

Hot work

33
Q

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

A

Welding

34
Q

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.

A

Brazing

35
Q

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.

A

Soldering

36
Q

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

A

Cutting

37
Q

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.

A

Grinding

38
Q

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

A

Drilling

39
Q

Common Hot work Hazards

A

• 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

40
Q

Common Risks in Hot works

A

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

41
Q

3 Basic Hot works Hazards Control

A

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

osh midterm (4 decks)

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