Which of the following represents the proper order of steps involved in constructing a shaft in rock?

Tunnel Engineering MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Tunnel Engineeringcivil-engineering-mcqs › tunnel-engineering
Published
19 Jan 2019
Last updated
28 May 2026

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Explanation

The correct sequence for shaft construction in rock starts with drilling and blasting to break the rock, followed by mucking to remove the debris. Next, timbering is done to support the shaft walls, and finally, pumping is carried out to remove any water. Hence, the correct order is drilling and blasting, mucking, timbering, and pumping.

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