Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 571
ntrol circuit; 4. Non-release of air brakes. Ques. How may a failure of power be detected? Ans. By turning on the lights; if lights do not burn, thecurrent is off. Ques. Name some faults liable to occur in the mastercontrol circuit. Ans. Loose cable jumper; grounded train cable; poor con-tact in… … J <^ o 6 o ,J o o o o o >* o o o o o o 0 o 0 1 5<* O o o o V i» o o o o 1 <j o o 0 o 6 8 >o O o 0 o <5 o < 3 O o o 6 0 o 0 o Q 0 1 I - <N« «\ ■1 <<> *o K ^ •l ELECTRIC RAILWAYS 2,663 The trainmen should make the observations. If there be a loosecable jumper, all…
Electrical engineering
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