Tunnel Boring Machines

1. Which energy source is typically used to power TBMs?

A) Hydraulic fluid
B) Electricity
C) Diesel
D) Natural gas

2. In which industry are TBMs commonly used for tunnel construction?

A) Retail
B) Civil engineering
C) Agriculture
D) Entertainment

3. What is the purpose of the segment erector on a TBM?

A) To position and install tunnel lining segments
B) To monitor air quality inside the tunnel
C) To store spare parts
D) To adjust the speed of the machine

4. How is the material excavated by a TBM typically removed from the tunnel?

A) Trucks
B) Pump system
C) Helicopter
D) Conveyor belt

5. What does the acronym TBM stand for in the context of tunnel construction?

A) Trenching Backfilling Machine
B) Tunnel Boring Machine
C) Technical Building Module
D) Transit Bridge Maintenance

6. What role does a thrust system play in the operation of a TBM?

A) It monitors the tunnel's alignment
B) It adjusts the pressure of the hydraulic fluid
C) It propels the machine forward during excavation
D) It controls the temperature of the cutting head

7. What is the term for the concrete or other material used to line the interior of a tunnel?

A) Tunnel sealant
B) Tunnel shield
C) Tunnel cover
D) Tunnel lining

8. What is the advantage of using TBMs over traditional tunneling methods?

A) Less environmental impact
B) Increased efficiency and safety
C) Lower cost
D) Faster construction speed

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