Exam Practice

Question 1

Inhalable Fraction

Answer 1

The mass fraction of total airborne particles which is inhaled through the nose and mouth.

Question 2

Respirable Fraction

Answer 2

The mass fraction of inhaled particles penetrating to the unciliated airways.

Question 3

Airborne Particles

Answer 3

Measure in mg/m3

Question 4

Gas/Vapours

Answer 4

Measured in parts per million (ppm)

Question 5

Are BMGVs statuatory?

Answer 5

NO - only one that is Lead.

Question 6

Lepd

Answer 6

Daily personal exposure level

Question 7

Return to work and LPB

Answer 7

3 months - 75%
6 months - 50%
12 months - 25%
24 months - virtually none.

Question 8

Aerosol

Answer 8

Disperse liquid/solic particles suspended in gas (usually air)

Question 9

Bio Aerosol

Answer 9

Aerosal solid/liquid particles consisting of biological viable organisms - virus, bacteria, pollen

Question 10

Gas

Answer 10

Formless fluid expands to occupy space. Gas at room temp

Question 11

Vapours

Answer 11

Gaseous form of solid/liquids

Question 12

Fumes

Answer 12

Material from volatilised solid condenses in cool air

Question 13

Dusts

Answer 13

Solid particles made airborne

Question 14

Graded dose response

Answer 14

Occurrence of effects in an individual response varies in severity according to dose.
Linear Curve

Question 15

Quantal Dose Response

Answer 15

Distribution of specific response in a population
Bell shaped curve.
Differences is susceptibility to chemicals within a population (biological variation)

Question 16

Spray

Answer 16

Aerosol of liquid droplets by mechanical disruption of bulk liquid material

Question 17

Mist

Answer 17

Aerosol of finer liquid droplets

Question 18

Smoke

Answer 18

Aerosol of solid or liquid particles from incomplete combustion

Question 19

Otosclerosis

Answer 19

Conductive hearing loss at low frequencies.

In women presents after pregnancy

Question 20

CAA

Answer 20

Civil Aviation Authority for pilots

Question 21

MCA

Answer 21

Maritime and coastguard agency for sea farers

Question 22

Divers regulation?

Answer 22

HSE

Question 23

Assigned Protection Factor

Answer 23

APF
The level of respiratory protection that the respiratory is expected to provide.
Eg APF of 10 should reduce exposure by one tenth.

Question 24

RPE Fit testing

Answer 24

Done by competent person after training.

Question 25

RPE Types

Answer 25

Respirators - filtering device | Breathing apparatus - have source of air

Question 26

Respirators

Answer 26

Simple once deal with particles. | Powered ones also filter gas

Question 27

EPP Category 1

Answer 27

Procedures where hands and fingertips of the worker are usually visible out of the body most of the time.

Question 28

EPP Category 2

Answer 28

Procedures where the fingertips may not be visible at all times but injury to the workers gloved hand from sharp instruments is unlikely.

Question 29

EPP Category 3

Answer 29

Finger tips are out of sight for significant part of procedure. Distinct risk of injury.

Question 30

Cooling Rules

Answer 30

Fitness for Disciplinary Investigation 1. Can they understand charges 2. Understand right from wrong 3. Capable of representing themselves or advising friend

Question 31

Occupations with Statuatory Requirements

Answer 31

Drivers - DVLA Pilots - CCA Seafarers - MCA Divers -HSE