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WorksheetsElectric Traction Quiz
Total questions: 10
Worksheet time: 5mins
What is tractive effort in electric traction?
The energy consumed per km
The force exerted by the train on the track
The force exerted by the motor on the wheels to move the train
The braking force applied during retardation
The tractive effort (F) required to accelerate a train is directly proportional to:
Train weight
Final speed
Acceleration
Both A and C
Which factor does NOT affect specific energy consumption?
Train load
Track gradient
Number of passengers
Type of train windows
What is the unit of specific energy consumption?
Newton
Joule
kWh/ton-km
Watt/km
If a train of mass 300 tons accelerates at 0.5 m/s², what is the tractive effort?
1500 N
15000 N
150000 N
1.5 MN
The coefficient of adhesion is defined as:
Ratio of tractive effort to total weight
Ratio of adhesive weight to tractive effort
Ratio of tractive effort to adhesive weight
Ratio of adhesive weight to total train weight
If the adhesive weight is 50 tons and the coefficient of adhesion is 0.2, what is the maximum tractive effort without slipping?
10,000 N
100,000 N
50,000 N
200,000 N
The effect of increasing braking retardation is:
Reduces travel time
Increases mechanical stress
Improves energy efficiency
All of the above
Which of the following will increase specific energy consumption?
Reduced acceleration
Smooth track
Steep gradients
Lower speed
A train consumes 300 kWh of energy over a run of 10 km, carrying 200 tons. What is the specific energy consumption?
0.15 kWh/ton-km
1.5 kWh/ton-km
0.03 kWh/ton-km
3 kWh/ton-km
