Hamad Electric Traction 07/09/2021 A. neutral wire B. rails C. cables D. common earthing Related Mcqs: Long distance railways use which of the following ?A. 200 V D.C. B. 25 kV single phase A.C. C. 25 kV two phase A.C. D. 25 kV three phase A.C.... The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to_____________/A. 5 B. 10 C. 14 D. 17... The normal value of adhesion friction is______________?A. 0.12 B. 0.25 C. 0.40 D. 0.75... Vacuum is created by which of the following ?A. Vacuum pump B. Ejector C. Any of the above D. None of the above... ________________ frequency is not common in low frequency traction system?A. 40 Hz B. 25 Hz C. 16 Hz D. non of these...
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