Buxton Has A Day Of Explosions

The video tutorial describes a heavy blast operation expected to bring down 50 to 60,000 tonnes of limestone from a quarry. The quarry face measures 82 feet in height and 200 feet in width. The preparation involves placing powder, coupling electric wires to primers, and blocking tunnels with stone.

What is the expected outcome of the heavy blast?

• To increase the height of the quarry

• To bring down 50 to 60,000 tonnes of limestone

• To create a new quarry face

• To reduce the width of the quarry

What is the height of the quarry face?

• 50 feet

• 200 feet

• 100 feet

• 82 feet

What is the width of the quarry face?

• 200 feet

• 150 feet

• 250 feet

• 300 feet

What is done after the powder is placed in position?

• The quarry face is measured

• The electric wires are coupled up to the primers

• The limestone is transported

• The quarry is expanded

How are the tunnels secured after preparation?

• With metal bars

• With concrete

• With wooden planks

• With stone