Occupational Hygiene 1. The most annoying sounds for our hearing are:
low-frequency
high-frequency
mid-frequency
low and mid-frequency sounds
2. What diagnosis would you give, if the clinical picture shows the following: pain in the hands, increased sensitivity to cold, muscle weakness, whitening of the fingers, decreased sensitivity, changes in motoric and secretory function of the stomach, violation of the ovarian-menstrual cycle in women?
Noise induced hearing loss
Silicosis
Vibration disease
Lead poisoning
3. Specify the size of the dust particles penetrating into the lung tissue?
over 20 μm
over 10 μm
over 5 μm
Less than 5 μm
4. What kind of dust causes Silicosis?
Asbestos-containing
Carboniferous
Iron-bearing
Containingfreesilicondioxide
5. A chemical that cause pulmonary edema at high concentrations:
Hydrogen sulphide
Oxides of nitrogen
Photooxydants
Carbon dioxide
6. Whatisworkability?
It is a work performed per unit of time
It is the ability of a person to do some work for a certain time
It is the ability of a person to perform a certain work for a long time and productively
Itispsychophysiologicalstability
7. Factors affecting the level of workability:
thepresenceoffunctionalmusic
theairconditioning
factors of the work environment
degree of air pollution by saprophytic flora
8. Factor of the labor process affecting the performance:
socialfactors
degree of air pollution by saprophytic flora
airconditioning
monotonous work, work on the conveyor production
9. Select a method used for assessment of workability among the following:
echocardiography
definition of stability of attention
electromyography
ultrasoundexamination
10. Select a method used for investigation of the central nervous system and higher nervous activity in assessing workability among the following:
definition of the latent period of visual-motoric, auditory-motoric reactions and the temperature response
investigationofthemotoranalyzer
electrocardiography
ultrasoundexamination
11. To assess the performance of persons engaged primarily in manual labor, you can use the one of the following techniques:
electrocardiography
ultrasoundexamination
determination of the duration of the latent period of the conditioned visual-motor reaction
age-relatedperiodization
12. An active rest is when you:
changeoftypeofrest
changeofactivity
accelerate of the recovery time of the functional capacity of the cerebral cortex
visit the office of psychoemotional discharge
13. Fatigue in monotonous physical work that lead to forced discontinuation of work is caused by:
functional depletion of the centers of the cortex of the brain
accumulation of lactic acid and other under-oxidized metabolic products in muscle tissue
the violation of the synaptic transmission of nervous excitation
the discoordination of afferent-efferent connections at the level of the spinal cord
14. Subjective factor of the production process affecting the performance is:
natureofwork
organizationofworkplace
psychophysiological conformity of the chosen profession
microclimate
15. What does systematically accumulating fatigue lead to?
toimprovingefficiency
to a decrease in memory and attention
to the accumulation of lactic acid in muscles
to the violation of the synaptic transmission of nervous excitation
16. What is meant by overfatigue?
overalldeclineinperformance
persistentdeclineinefficiency
a declineinlaborproductivity
a temporary decline in efficiency
17. One of the main component of prevention of fatigue is:
medicalexamination
applicationoffuntionalmusic
psychophysiological conformity of the chosen profession
rationalnutrition
18. What vibration causes a vibrational disease?
workplacevibration
constantvibration
dashedvibration
short-termlocalvibration
19. What effect has workplace vibration on a body?
causes dizziness and general weakness
generallyhasnoeffect
dysfunctionofthegastrointestinaltract
developmentofanginapectoris
20. What effect has high-frequency local vibration on the body?
dysfunctionofthegastrointestinaltract
generallyhasnoeffect
disorders in the musculoskeletal system
thedevelopmentofanginapectoris
21. Forms of vibration disease in severe stages:
white and blue vibration disease forms
cerebro-vascular and amyotrophic vibration disease forms
colorectal and gastrointestinal vibration disease forms
anginapectoris
22. What measure should be taken to prevent the effect of vibration on the body?
conductingregularaudiometry
the use of technical means against vibration
rationingpersonaldiet
the use of earplugs and ear muffs
23. What effect has noise on the body?
the development of hearing loss
decreaseinthetactilesensitivity
theeffectonurinaryorgans
thedevelopmentofmyopia
24. Spectral composition of industrial noise:
infrasound
ultrasound
highfrequencysound
tonalandbroadband
25. What is the threshold of audibility?
the minimum intensity of sound that the hearing organ is able to perceive
the maximum intensity of sound that the auditory organ is able to perceive
the intensity of sound retained by the auditory analyzer
the intensity of sound that forms the pathological process in the auditory analyzer
26. What measure should be taken to prevent the effects of noise on the body?
theuseofprotectivecloths
listeningfunctionalmusic
the use of personal protective means (ear muffs and earplugs)
rationaldiet
27. What percentage of the visible rays of the solar spectrum reaches the Earth?
60%
40%
30%
20%
28. The positive effect of ultraviolet radiation on the body is manifested by:
improvementofreproductivefunction
accelerationofsalivation
increased phagocytic activity of leukocytes
improvementinvisualacuity
29. The level of natural light in the room can be determined using:
thelightangle
thelightbrightness
the coefficient of natural illumination
thespectrumcoefficient
30. Artificial light fixtures are considered optimal if they give:
straightlight