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Electric Traction

Electric Traction
The horsepower of steam locomotives is

500 to 1000
1500 to 2000
Up to 1500
2500 to 3000

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Electric Traction
In tram ways which of the following motors is used?

D.C. shunt motor
AC. single phase capacitor start motor
A.C. three phase motor
D.C. series motor

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Electric Traction
An ideal traction system should have

All of the listed here
Equipment capable of withstanding large temporary loads
Easy speed control
High starting tractive effort

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Electric Traction
Coefficient of adhesion reduces due to the presence of which of the following?

Dew on rails
Sand on rails
Oil on the rails
Both Dew on rails and Oil on the rails

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Electric Traction
If the coefficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails?

0.16
0.35
0.26
0.46

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Electric Traction
Tractive effort is required to

Overcome friction, windage and curve resistance
Accelerate the train mass
All of the listed here
Overcome the gravity component of train mass

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MORE MCQ ON Electric Traction

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