9.2

Question 1

What is cap 562 leaflet h-60

Answer 1

You must wear glasses or contacts to correct vision problems

Question 2

What are the three areas of the ear

Answer 2

Outer ear
Middle ear
Inner ear

Question 3

What is the structure of an ear

Answer 3

Hammer
Anvil
Stirrup

These all tranfer vibration from outter ear to inner eye

There is also hear like memberains

Question 4

What are the hair like membainsa in a ear for

Answer 4

Converting vibration to electrical signals

Question 5

What is the eustachan choob

Answer 5

It is connected to nose and mouth. Flem can block this tube

It is used for balance and detecting acceleration

Located in the inner eye.

Question 6

What are the Ossicles

Answer 6

They are mussels that protect there ear for loud noise by moving

Question 7

What is the human hearing range

Answer 7

Average human can hear from 20hz to 20khz

Question 8

What sound level should you wear hearing protection at

Answer 8

90db.

Question 9

What are the factors effexting poformance by noise

Answer 9

Being annoying
Interfering with verbal communication
Cause accidents

Question 10

What are the different distances in a normal conversation.

Answer 10

If you can have a normal conversation at 2 meters apart. It is 80 to 85db. Assessment has to be made

If you can hear at 1 meter the may be damge being done to your hearing.
An employer must provide hearing protection

If it is above stop work until a solution if provided

Question 11

What is noise dose

Answer 11

Conbnation of noise intensity and duration

Any noise over 80db it contributes to noise does

More the 115 db with out ear protection is not permitted to be there for any time.

90 db need are protection

Question 12

Different hear protects

Answer 12

Up to 20db you can use a ear plug

Above 40db ear defenders are needed

130 is to high for any ear protection

Question 13

What does NIHL stand for

Answer 13

Noise induced hearing loss.

Can be temporary

Can cause permanent damge to the hair like membrane

Question 14

What is the term for hearing loss due to age

Answer 14

Prebycusis.
From about 30 years
Gradual

Question 15

What are the tree process of brain

Answer 15

Encoding
Storage
Retrieval

Question 16

What is iconic memory

Answer 16

Where the visual are stord

Question 17

What is echoic memory

Answer 17

Sounds

Question 18

What is perception

Answer 18

The process of assembling sensations into a usable mental representation of the world

Question 19

2d of 3d

Answer 19

2d in the retina and 3d is down to your perception

Question 20

What is the cocktail effect or selective hearing.

Answer 20

Giving greater attention to one or more source that you deemed to be more important.

Like when someone says your name at a party

Question 21

Divided attention

Answer 21

Doing more the one thing at a time. However somethings will not be run as safely

Question 22

What is focused attention

Answer 22

Focusing on single actions ignoring what’s going on around you

Question 23

What is sustained

Answer 23

Remain attentive or a long time. Needs less stress.

Question 24

What is sensery memory

Answer 24

Ultra short term. Last 2 seconds

Gose to iconic for 2 secs
Goes to ecoic for 0.5 seconds

Question 25

What is short term memory

Answer 25

Referd to as working memory

5 to 9 items that last for upto 20 seconds

Question 26

What is long term memory

Answer 26

Long term is unlimited duration and amount

Never lost. Like language
Episodic events

Semantic- facts

Motor programs

Question 27

What are motor programs

Answer 27

Routinez that run together

Happen without thinking

Make the second nature

Question 28

What is the cochlea

Answer 28

Converts vibration to electricity