Tunnel Boring Machines

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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