Hamad Tunnel Engineering 31/08/2020 A. only up holes B. only down holes C. horizontal or up holes D. horizor„al, down or up holes Related Mcqs: Which one of the following tunnelling methods is used for laying under ground sewers ?A. Needle beam method B. Army method C. German method D. Italian method... The most suitable soil for compressed air tunneling is________________?A. silt B. sand C. clay D. gravel... Which of the following methods of tunneling is used for long tunnels at great depths ?A. Army method B. Needle beam method C. Austrian method D. English method... As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield___________________?A. remains same B. decreases C. increases by 2.25 times D. increases by 3.5 times... What is the correct sequence of the following events of construction of a shaft in rock ?1. drilling and blasting 2. timbering 3. pumping 4. mucking Select the correct answer using the codes given below Codes? A. 1,2,3,4 B. 1,4,2,3 C. 2,1,4,3 D. 2,4,1,3...
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