mason tending safety

Exposure to silica primarily occurs through

• hearing
• touching
• breathing
• seeing

Chronic silicosis develops after how many years of exposure to dry portland cement and mortar dust?

• 10
• 1
• 5
• 3

When mortar touches the skin, it can cause the skin to

• become dry and cracked
• soften
• turn blue
• become damp and waxy

What are the appropriate first aid procedures for skin contact?

• Take a shower immediately, and discard the contaminated clothing.
• Apply first aid ointment to the area, and remove and wash the contaminated clothing.
• Place bandages on the affected area, and discard the contaminated clothing.
• Wash the affected area thoroughly, and remove and wash the contaminated clothing.

When mixing water with acids, always

• add water to acid
• add both at the same time
• mix them in a metal pail
• add acid to water

A respirator will protect the mason tender from

• tripping and falling
• being struck by a chip of block
• collapsing walls
• airborne silica dust

When cleaning masonry products with muriatic acid, do not use ________ for protection.

• protective clothing
• faceshields
• gloves
• sunglasses

What are the appropriate first aid procedures for eye contact?

• Wash the eyes with clean water, and seek medical advice immediately.
• Place patches over the eyes, and seek medical advice immediately.
• Wash the eyes with boric acid, and seek medical advice immediately.
• Apply first aid ointment to the eyes, and seek medical advice immediately.

When constructing a concrete block wall in windy conditions, be sure to

• lay the block with special mortar
• provide temporary bracing
• complete the work quickly
• wear a respirator

Exposure to silica does not cause

• chronic bronchitis
• arthritis
• cancer
• tuberculosis