WorksheetsPearson - 9Fa - Demolition
Total questions: 5
Worksheet time: 3mins
What is implosion in the context of building demolition?
Causing the building to collapse in on itself with explosives
Using a wrecking ball
Progressively disassembling with a high reach arm
Selective removal of building materials
Which technique is considered safer and more precise than using a wrecking ball?
Crane and ball demolition
Implosion with explosives
High reach arm demolition
Selective demolition
What is the primary objective of selective demolition?
To recover reusable and recyclable materials in a safe and cost-effective manner
To cause the building to collapse in on itself with explosives
To disassemble the building with a wrecking ball
To create a lot of dust, vibration, and noise
What is the weight of a typical wrecking ball used in demolition?
5,000 pounds
8,000 pounds
10,000 pounds
13,500 pounds
Why is demolition considered one of the most hazardous occupations in the world?
Due to the high level of noise and vibration
Because it involves the use of explosives
Due to the potential risks to the demolition crew and surrounding areas
Because it creates a lot of dust
