5.3 Radiation

Which of these is ionising radiation?

• 1 X-rays
• 2 Visible light
• 3 Microwaves
• 4 Radio waves

Basic ways to limit exposure to ionising radiation are:

• 1 Heat, light and sound
• 2 Time, distance and shielding
• 3 PPE only
• 4 Noise, vibration and dust

Radon is a:

• 1 Naturally occurring radioactive gas
• 2 Non-ionising source
• 3 Visible dust
• 4 Type of laser

Which of these is non-ionising radiation?

• 1 Gamma rays
• 2 X-rays
• 3 Ultraviolet light
• 4 Alpha particles

Which is the main health effect of ultraviolet light on skin?

• 1 Burns and skin cancer
• 2 Dermatitis from cement
• 3 Lung scarring
• 4 Hearing loss

Infrared radiation mainly causes:

• 1 Heat burns
• 2 Hearing loss
• 3 Genetic damage
• 4 Radiation sickness

Lasers can cause:

• 1 Ear damage
• 2 Skin sensitisation only
• 3 Hearing loss
• 4 Eye damage

Welding arcs are a source of:

• 1 Alpha radiation only
• 2 Radon only
• 3 Neutrons only
• 4 Ultraviolet and visible radiation

Ionising radiation includes:

• 1 Visible light
• 2 Radio waves
• 3 Microwaves
• 4 Alpha, beta and gamma rays and neutrons

Radon gas comes from:

• 1 Welding
• 2 Burning wood
• 3 The ground and can build up in buildings
• 4 Cleaning products

In controlling ionising radiation, distance means:

• 1 Staying as far away from the source as possible
• 2 Using a thinner barrier
• 3 Increasing the time near the source
• 4 Moving closer to measure

Shielding in radiation protection is:

• 1 A warning sign
• 2 A barrier between the person and the source
• 3 A first aid kit
• 4 A longer shift

Which of these is a control for ionising radiation sources?

• 1 Allowing anyone to use them
• 2 Keeping sources locked, labelled and in restricted areas
• 3 Keeping them unlabelled
• 4 Leaving them in an open area

A dose badge is used to:

• 1 Block ultraviolet light
• 2 Cool the skin
• 3 Protect from radiation
• 4 Monitor the radiation dose a worker receives

Who advises on and oversees a radiation protection strategy?

• 1 A competent person such as a radiation protection adviser
• 2 The customer
• 3 Any visitor
• 4 The cleaner