9.5 Physical Environment

Question 1

what can environmental conditions affect

Answer 1

physical performance

Question 2

what conditions can extreme environments create

Answer 2

physical and mental fatigue

Question 3

how can engineers protect themselves from the cold

Answer 3

by wearing gloves

Question 4

what is vibrations in aircraft maintenance engineering usually cause by

Answer 4

rotating or percussive tools and ancillary equipment

Question 5

what frequency is most problematic , as the human body absorbs most of the vibratory energy in this range

Answer 5

0.5 Hz to 20 Hz

Question 6

what frequency is associated with vibratory-induced white finger syndrome

Answer 6

50Hz - 150Hz

Question 7

what are the three different environments within the working environment

Answer 7

physical
tasks to be carried out
social environment

Question 8

an accepted rule of thumb is that one hour high quality sleep is enough for how many hours of activity

Answer 8

2 hours

Question 9

exposure above what sound level isn’t recommended

Answer 9

115dB

Question 10

what does illumination refer to

Answer 10

the lighting within the general working environment and the locality of the engineer

Question 11

what is illuminance measured in

Answer 11

lux