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71
In India, electrification of railway track was done for the first time in which of the following years?
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Answer: Option C
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72
_________ locomotive has the highest operational availability.
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Answer: Option A
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73
The return circuit for tram cars is through
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Answer: Option B
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74
________ have maximum unbalanced forces
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Answer: Option B
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75
The braking retardation is usually in the range
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Answer: Option D
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76
If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails?
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Answer: Option D
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77
The rate of acceleration on suburban or urban service is in the range
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Answer: Option B
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78
In tram ways which of the following motors is used?
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Answer: Option B
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79
Which of the following drives is suitable for mines where explosive gas exists?
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Answer: Option C
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