71. In India, electrification of railway track was done for the first time in which of the following years? A. 1820 - 1825 B. 1880 - 1885 C. 1925 - 1932 D. 1947 - 1954 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
72. _________ locomotive has the highest operational availability. A. Electric B. Diesel C. Steam D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
73. The return circuit for tram cars is through A. Neutral wire B. Rails C. Cables D. Common earthing Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
74. ________ have maximum unbalanced forces A. Diesel saunters B. Steam locomotives C. Electric locomotives D. Diesel locomotives Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
75. The braking retardation is usually in the range A. 0.15 to 0.30 km phps B. 0.30 to 0.6 km phps C. 0.6 to 2.4 km phps D. 3 to 5 km phps Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
76. If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails? A. 0.3 B. 0.26 C. 0.225 D. 0.16 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
77. The rate of acceleration on suburban or urban service is in the range A. 0.2 to 0.5 km phps B. 1.6 to 4.0 km phps C. 5 to 10 km phps D. 15 to 25 km phps Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
78. In tram ways which of the following motors is used? A. D.C. shunt motor B. D.C. series motor C. A.C. three phase motor D. AC. single phase capacitor start motor Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
79. Which of the following drives is suitable for mines where explosive gas exists? A. Steam engine B. Diesel engine C. Battery locomotive D. Any of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
