Unit 103 Demolition

https://www.youtube.com/watch?v=tRJz0PePXZ8

What is the most dramatic and impressive way to demolish a building?

• High reach arm

• Implosion

• Selective demolition

• Wrecking ball

Which demolition technique is usually chosen for buildings taller than 66 feet?

• Wrecking ball

• High reach arm

• Selective demolition

• Implosion

What type of buildings is the implosion technique generally used on?

• Wooden structures

• Low-rise buildings

• Tall buildings like skyscrapers

• Small houses

Which demolition technique is known for being labour-intensive and time-consuming?

• High reach arm

• Implosion

• Selective demolition

• Wrecking ball

What is the primary objective of selective demolition?

• To use explosives

• To create a lot of dust

• To demolish buildings quickly

• To recover reusable materials

Which explosives are commonly used in the implosion technique?

• Gunpowder

• C4

• Dynamite

• TNT or RDX

What is the main focus of implosive demolition?

• The roof and upper floors

• The external walls

• The internal non-structural walls

• The foundation and lower levels

What does the wrecking ball technique typically employ?

• A large hammer

• A high reach arm

• A massive chunk of metal

• Explosives

Why is selective demolition gaining popularity?

• Because it uses explosives

• Because it allows for material reuse

• Because it's the cheapest option

• Because it's the fastest method

What happened during the demolition of a silo in Denmark in 2018?

• It was demolished using a wrecking ball

• It was the fastest demolition recorded

• It fell the wrong way, causing damage

• It was successfully demolished with no issues