Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

OSH > PRELIM > Flashcards

PRELIM Flashcards

1
Q

A cause of fire death where there is bronchial and pulmonary swelling.

A

Edema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In the triangle of fire, it is the reducing agent

A

Fuel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It is the lowest temperature at w/c fuel gives off flammable vapors

A

Flash point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

First in the principles of fire prevention is

A

Prevent the outbreak of fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A substance is more dangerous when it has a __ flashpoint

A

lower

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A cause of fire death due to insufficient oxygen

A

Asphyxia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Air is normally __% oxygen

A

21%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The hot work permit is a/an __ control

A

administrative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In the triangle of fire, it is the oxidizing agent

A

Oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Fires with magnesium as fuels is a class __ fire

A

Class D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A cause of fire death where the lungs sell with blood congestion

A

Hyperemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A transfer of heat from molecule to molecule

A

Conduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Fires with motors is a class __ fire

A

Class C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When oxygen content of air drops below __%

A

16 %

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A material having a flashpoint at or above 37.8C is known as a __ material

A

Combustible material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Fires with wood as fuel is a class __fire

A

Class A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

A cause of fire death from effects of heat

A

hyperthermia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Air is normally __% nitrogen

A

78%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A material having a flashpoint below 100F (37.8C) is a __ material

A

Flammable material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Fire is

A

” Rapid oxidation with the evolution of light and heat”

Fire Is a chemical reaction between a
flammable or combustible material and oxygen.

Is the chemical union of heat, fuel and oxygen produced in the proper proportions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Fire in the kitchen is a class __ fire

A

Class K

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

When using a fire extinguisher, start squeezing the trigger __ feet

A

6-8 feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

A room, building or hall should have at least __ safety exits

A

Atleast 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

The method of extinguishment of fire where oxygen is limited/removed.

A

Hyperthermia ?
Smothering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Fires with paints of grease as a fuel is a class __ fire

A

Class B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Industrial Hygiene is a science that deals with the ___, of workplace conditions that may cause sickness, impaired health and well-being,

A

recognition, evaluation, anticipation and control

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

“If two people with no hearing impairment have to shout to be heard in a distance of less than __ from each other, the sound level is potentially hazardous”

A

Arm length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Which is not included in the classification of hazards for industrial hygiene?

A
  • Mechanical

Classification of Hazards: Chemical Hazards , Physical Hazards, Biological Hazards, Ergonomic Hazards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What type of hazard is NOISE?

A

Physical Hazard

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which is not a recognized type of noise in Industrial Hygiene?

A

Compact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A source of natural light

A

daylight/ moonlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Ergonomics is about fitting the worker to the task or job

A

“Fit the task to the man”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Chemicals have improved our lives are found everywhere around us, but they become hazardous when they become

A

airborne

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

The largest way for chemicals to enter the human body is through

A

skin contact

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

A device for work environment monitoring that measures illumination levels

A

Lux Meter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

The following are chemical hazards except

A

Radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

The following are ionizing radiation except

A

ultraviolet rays

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

which is an extreme pressure?

A

12.13 kPa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Which is an ionizing radiations

A

x-rays

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Which is not a whole body vibration source?

A

chainsaw

body vibration sources – weaving
looms, harvester-thresher, tractors, etc.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Biological hazard that went global in 2020

A

virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Ergonomic comes from two words which mean “work “ and laws. these are Ergo and __ is about fitting the worker to the task or job

A

nomos

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Chemical labels contain the following information except

A

Latin Scientific name

● Trade name of the substance
● Identity and concentration
● Danger markings; safety precautions
● Manner of destroying the package
● Risks associated with the use of the chemical
● Name of manufacturer & address

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Equipment used to analyze samples of heavy metals

A

Atomic Absorption Spectrophotometer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Recommended illumination levels for corridors and passageways is a minimum light level of __ lux

A

50 lux

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Safety is a state if freedom from danger of risk or injury to

A

human, property and environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

___ is a direct cost of accidents

A

compensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Is not a hidden cost of accidents

A

medical expenses

49
Q

Regarding safety and engineering, process design and control is usually a matter.

A

Chemical Engineering

50
Q

Which branch of engineering is concerned with reliability of power?

A

Electrical Engineering

51
Q

The most versatile form of enegery

A

Electrical

52
Q

Can cause an electrical accident

A

overloading

53
Q

which is a secondary effect of electrical hazards

A

falls

54
Q

which is the best conductor

A

silver

55
Q

which is not a factor affecting electric shock

A

quality/brand of device

56
Q

at __ma of current (minimum amount) through the body, ventricular fibrillation is certain and thus fatal

A

100 mA

57
Q

The safe “let-go” current which may cause a secondary accident is __ to __mA

A

5 to 16

58
Q

A fast-acting circuit device which senses small imbalances in the circuit caused by current leakage to ground and, in a fraction of a second, shuts off the electricity

A

fuse

59
Q

these are calibrated conductors which will melt and break open the electrical circuit when too much current flows through them. this stops the flow of electricity before any problem can develop

A

look out device

60
Q

Can be securely fastened to an energy isolating device in accordance with an established procedure to indicate that the energy isolating device and the equipment being controlled can not be operated until the tag is removed.

A

tagout device

61
Q

in case of an electrical accident, on must

A

immediately turn off the electrical power sourfce

62
Q

the Occupational and Safety & Health Standards for Machine Guarding

A

RULE 1200

63
Q

Whose responsibility is it not to operate equipment unless guards are in place

A

employees

64
Q

When a worker falls and hands by the fall arrest system, rescue should be done within __ to __ minutes

A

5 to 10 minutes

65
Q

Poses the greatest risk in excavating and trenching works

A

cave-ins

66
Q

When excavating or trenching, keep surcharge loads at least ___ feet away from the edges

A

2 ft

67
Q

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

A

Brazing

68
Q

A job which is not considered as a common hot work

A

drilling

69
Q

Atmospheric oxygen is safe when it is between __ to __ % in the work space

A

19.5 to 23.5 %

70
Q

When the level of oxygen falls below ___% judgement and coordination suffers

A

16%

71
Q

When the level of oxygen falls below __% difficulty of breathing and drowsiness occurs.

A

16%

72
Q

When the level of oxygen falls below __%, a person becomes unconscious

A

12 %

73
Q

When the level of oxygen falls below ___%, death occurs.

A

14%

74
Q

The level of oxygen can fall if the confined space contains

A

Methane which absorbs oxygen

75
Q

The level of oxygen can fall if the confined space contains

A

Carbon dioxide which absorbs oxygen

76
Q

Which atmospheres are all hazardous?

A
77
Q

Toxic substance such as __, can cut off breathing

A

Carbon Monoxide

78
Q

Toxic substance (smells like rotten eggs) such as __, can cut off breathing

A

Hydrogen sulfide

79
Q

When testing for atmospheric hazards, the order of testing must be

A

oxygen, combustible gasses &vapors, toxic gasses & vapors

80
Q

A PRCS job location cannot be entered without a permit

A

true

81
Q

Which hazardous gas is lighter than air?

A

Methane

82
Q

Which hazardous gas is heavier than air?

A

Hydrogen Sulfide

83
Q

The use of special tools and lighting or extra low voltage equipment require that such should not have a voltage exceeding ___ (ac) volts

A

50 V

84
Q

The best way of hazard control for confined spaces is

A

susbtitution

85
Q

the use of special tools and lighting or extra low voltage equipment require that such should ___(dc) volts

A

120 V

86
Q

A confined space

A

has a limited or restricted means of entry/exit but is large enough for a worker to enter and perform his job

87
Q

____ are primary protective devices intended to fit the fac immediately surrounding the eyes

A

goggles

88
Q

Mechanical Respirators that screen out dust and some form of mist

A

Filtration respirators

89
Q

Hearing protectors placed inside the ear to block out noise

A

earplugs

90
Q

Hard hats proof tested at 20,000 volts are class

A

Class E

91
Q

___ are primary protective devices intended to shield the wearer’s eyes from flying and striking objects, glare and injurious radiation hazards

A

goggles

92
Q

Class __ helmets do no provide protection against contract with electrical hazards

A

Class C

93
Q

“As a general rule, face shields should be worn over suitable basic eye protection”

A

true

93
Q

A device composed of a headband with two cushioned ear cups that form a seal around the outer ear, covering it completely and blocking out the noise

A

earmuffs

94
Q

Exposure to noise at 85-90 dB. Must not be more than __ hours

A

8 hrs

95
Q

In hazards and risk management, this is the 3rd step

A

Implement hazard controls

96
Q

In hazards and risk management, this is the 1st step

A

Identify Hazards

97
Q

Which is the responsibility of the worker/ employee?

A

report hazardous conditions to the supervisor

98
Q

Safety and Health is ___ responsibility

A

everyone’s

99
Q

There are three major subsystems that must be dealt with in building effective safety system: Which is not among them

A

Physchological

100
Q

Route of entry of hazards to the body through swallowing

A

ingestion

101
Q

This property is important when considering the containment, disposal, and treatment alternatives of a certain substance or product. It is a chemical property that determines whether the substance or chemical will float on or sink into water

A

specific gravity

102
Q

What is the lowest temperature at which the liquid gives off ignitable vapor with oxygen in air and produce flame when an ignition source is present?

A

flash point

103
Q

Acetone has a flashpoint of -20degrees C. Therefore, it is a combustible liquid

A

False

104
Q

The range of concentrations of gases in the air that will support the explosive process bounded by measurable limits called upper explosive limits (UEL) and lower explosive limits (LEL)

A

Flammability range

105
Q

The basic principle to extinguish Fire is to use a Fire Extinguisher

A

False

106
Q

Generally defined as energy that has the potential to cause injury or even death

A

Hazardous Energy

107
Q

A liquid that has a flashpoint below 37.8C

A

Flammable Liquid

108
Q

What class of fire does Acetone fire belong to?

A

Class B

109
Q

Hazardous energy control procedures for each type of machine/equipment

A

Equipment -specific Lockout/Tagout Procedure

110
Q

What class of fire are Metal Fires?

A

Class D

111
Q

Cooking oil fires are what type of fire?

A

Class K

112
Q

The temperature at which the liquid changes into vapor

A

Boiling point

113
Q

The standard approach for chemical labeling and hazards classification

A

Globally Harmonized System

114
Q

It is important that Lockout/Tagout must be done by

A

Authorized employee

115
Q

A procedure to control hazardous energies

A

Lockout/Tagout

116
Q

The reference material that identifies chemical characteristics and hazards

A

MSDS

117
Q

In LOTO removal process, it is important to:

A

Remove the LOTO devices then re-energize the equipment

OSH (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions