I said, "I had been teaching in school for 9 years."
Method that is used to communicate information to far off places instantly is called
For supply on 25 kV, 50 Hz single phase, suitable motor for electric traction is
The specific energy consumption for suburban services is usually
If the specific energy consumption for suburban services is 50 to 75 watts hours per tonne km, which of the following could be a representative figure for energy consumption on main line service
If the binder's charges to Rs. 6,000, then the expenses on the cost of paper would have been
The coasting retardation on trains is approximately
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A schedule speed of 45 km, per hour is required between two stops 1.5 km apart. The duration of stop is 20 seconds. The acceleration is 2.4 km phps and retardation is 3.2 km phps. For a simplified trapezoidal curve the maximum speed over the mil will be
The acceleration rate of trains on suburban services is