Tunnel Engineering

Which one of the following methods is adopted for permanent drainage of tunnels?

  • A. Provision of longitudinal drains
  • B. Continuous open drains
  • C. Concrete lining
  • D. All the above
Answer: Option D.

IS 14665 gives details about elevators. It specifies the number, capacityof elevator and number of floors to be served.

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button
error: Alert: Content is protected !!