Chapter 5: Physical Environment Flashcards
why is working in confined spaces dangerous?
lack of oxygen, presence of poisonous fumes, leading to chronic damange to health
Colour rendering of a light source is an important factor during inspection. It allows
the colours of an ___ to be ___ accurately.
object, reproduced
What should be maintained such that personnel can carry out
required tasks without undue discomfort and that aircraft parts and materials are
protected against deterioration, contamination and damage?
Temperature and humidity
Insufficient illumination can sometimes cause conditions
similar to ____. Hence, the ___ and ___ must be aligned to the
circadian rhythm throughout the day.
depression
colour, intensity
According to the Ministry of Manpower, heat stoke is an acute and life-threatening
condition where the core body temperature may rise above __ degrees. Workers
working in ___ and ____ environment are prone to it.
41 degrees,
hot and humid
Hypothermia can occur in?
hot and humid weather
wet and cold conditions
temp is below freezing
Working in confined spaces can cause confined space emergency ranging from a
lack of ___ to being ___ and an increase in ____.
oxygen, dehydrated, body temperature
Metrics for describing:
ability to see things
amount of striking on surface
luminance
illuminance
Changes in
the ambient temperature and humidity can cause ____ or ____ to
happen, that is, the temperature is significantly higher or lower than the normal body
temperature respectively
hyperthermia or hypothermia
A ___ contrast makes it difficult to distinguish an object from its background. Hence, the
work area should be ____ than its surrounding area.
low, brighter
Indirect glare depends on the ____ from a surface. A highly ____ surface helps in reflecting light and distributing it uniformly.
reflectance, diffused
The illuminance of light varies with the ____ and ____.
square of distance, angle of incidence
an increase of 10 degrees
Celsius from 20 degrees Celsius, will reduced reading and comprehension by 30
percent. The effect will be greater on ____ performance than on ____
performance.
cognitive, physical
According to JAR (SAR) 145, the environmental conditions must be adequate for
work to be carried out. In line maintenance, the task should be carried out without
undue ____. So, if the working environment deteriorates to an ____
level, the particular maintenance or inspection tasks should be ____ until
satisfactory conditions are re-established.
delay, unacceptable, suspended
to prevent heat stroke, how frequent should workers drink one glass of water?
15 to 20 minutes
