occupational hygeine

Question 1

different tests for efficiancy

Answer 1

Test of Aniffmov - 40 squares and 40 lines

test of schultze -tetsing volume and flexibility
49 squares each containing numbers 1-25 in black and 1-24 in red

ring of landolt- volume and accurancy of processign visual information
32 32
used to test firemen and polic etc

Question 2

tremometyria

Answer 2

coordination of movements

tests a static and dynamic tremor

Question 3

optic anylser

Answer 3

use the stereoscopic cubes of kortotkoff
normal result 1 cub at the top and 2 at the bottom

under 58% is unclear vision

Question 4

reaction times and what we measure

Answer 4

• simple
• recognition reaction time
• choice reaction times - multiple stimuli

measue using a chronoflreksometer

Question 5

factors that depend on how dangerious noise is

Answer 5

1. frequency
2. amplitdue
3. contuniousness

Question 6

noise exposure factors

Answer 6

the freqency
the duration
the period of exposure during each day
the intesntiy (sound pressur e level)

Question 7

what is dangerous for human hearing

bulgarian upper limit of noise in the indusry

Answer 7

db above 115

85 db

Question 8

what can we use to meausure sound

Answer 8

sound level meter
2 types, non integrating and integrating

octave bands analyzer- used in conjuction with a sepecial type of sound level meter which measures wat least 8 different frequency levels (unweighted sound pressure levels)

Question 9

noise dosimeter

Answer 9

some people move around at work so its not practical to use a sound level meter or octave band anylezer so they use a dosimeter which they attach to themselves and it records

Question 10

ear protection

Answer 10

1. encolusre
2. ear muffs
3. ear plugs
4. ear canal

Question 11

healrth conservation programmes

Answer 11

for people who work above the bulgarian upper limit which is 85

involves 5

1. exposure monitoring
2. audiometric testing
3. hearing protection
4. employee training
5. record keepng

Question 12

how do we measure vibration

Answer 12

usually 3 planes, one is usually more dominant

use a triaxial accelerometer

Question 13

Requirement for people working with radiation

Answer 13

Must carry their own Dosimeter

Question 14

legal reuqirment for any radiation places

Answer 14

To have radiation protection supervisor which will oversee the work and ensure the local rules are being followed

Question 15

Four main rules when working with radiation

Answer 15

Have as low as a dose of possible
increase the distance from the source
spend as little exposure time and
protect yourself a personal equipment

Question 16

prtective material from x rays

Answer 16

lead barium concrete

Question 17

recommendations for protection from

Answer 17

hermetic rooms or boxes
telemateric management
good ventilation system

Question 18

Room for storage of radioactive substances

Answer 18

must be stored separate clearly labelled the name the duration with tape and the owners name

Question 19

What to use when you’ve contaminated yourself with radioactive material

Answer 19

Water hot soap scrub with a brush try not to break the skin because you don’t want to enter into the bloodstream but use 4% solution of potassium

Question 20

What to not use in contamination with

Answer 20

radioactive substances is organic solvents like alcohol because they will increase the absorption of the radioactive source assisted skin

Question 21

What do use if your ears your mouth your nose has come into contact with radioactive material

Answer 21

you use potassium permanganate and you gargle

Question 22

over fatigue

Answer 22

acute fatigue most commonly in hunting and sport you get excitement tachycardia albuminin your urine hematuria and chronic fatigue often involves medical intervention extreme exhaustion trouble sleeping loss of weight neurosis loss of appetite