Tunnel Boring Machines

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

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

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

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

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

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

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

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

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

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

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

A) Faster construction speed
B) Lower cost
C) Increased efficiency and safety
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 cover
B) Tunnel sealant
C) Tunnel shield
D) Tunnel lining

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

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

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