Hauling power = number of pairs of driving wheels x weight exerted on the driving wheels x coefficient of friction Thus, for a locomotive with three pairs of driving wheels, an axle load of 20 t, and a coefficient of friction equal to 0.2, the hauling power will be equal to 3 x 20 x 0.2 t, i.e., 12 t.
What do you understand by hauling capacity and tractive effort?
Primarily tractive effort of the locomotive determines the load hauling capacity. It is the combined adhesive force developed by the locomotive by the locomotive wheels on the rails. The tractive effort transforms into drawbar pull after accounting for the locomotive resistance, and pulls the trailing load.
What would be the hauling capacity of a locomotive for 2 8 2 type locomotive if the load on each axle is 24 tonnes *?
A train is hauled by 2-8-2 locomotive with 22.5 tonnes load on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive ?
Discussion :: UPSC Civil Service Exam Questions – Section 6 (Q. No. 10)
| [A]. | 15.0 tonnes |
|---|---|
| [C]. | 45.0 tonnes |
| [D]. | 90.0 tonnes |
What do locomotives carry?
Both fuel and water supplies are carried with the locomotive, either on the locomotive itself, in bunkers and tanks, (this arrangement is known as a “tank locomotive”) or pulled behind the locomotive, in tenders, (this arrangement is known as a “tender locomotive”).
What is heavy locomotive?
heavy locomotive means a mechanically propelled vehicle which is not constructed itself to carry a load other than any of the excepted articles and the weight of which unladen exceeds 11690 kilograms, Sample 1. Sample 2. Sample 3. heavy locomotive means a mechanically propelled vehicle which is not constructed itself
How do you calculate hauling capacity?
Subtract the curb weight from the GVWR to find the payload capacity. For example, if you have a light-duty truck with a GVWR of 9,000 pounds and a curb weight of 6,000 pounds, the payload capacity will be 3,000 pounds: GVWR – curb weight = payload capacity. 9,000 pounds – 6,000 pounds = 3,000 pounds.
How many tons can a locomotive pull?
How Many Tons Can A Modern Locomotive Pull?
| Model | Weight | Total tons on 1% grade |
|---|---|---|
| Light GP40 | 250,000 | 3750 |
| Heavy GP40 | 280,000 | 4200 |
| Light SD40 | 380,000 | 5700 |
| Heavy SD40 | 420,000 | 6300 |
Why coning of wheels is provided?
Detailed Solution. Coning: Inward provision of the slope of 1:20 on the wheels of the railway wagon to counteract the centrifugal force acting the on the train. So, it enables the train wheels to cover different distances along the inner and outer curves simultaneously.
What does Max payload mean?
Payload capacity for a vehicle is the maximum amount of weight it can safely carry, including all the weight in the car cabin and trunk. In a truck, it also includes the weight in the cabin and bed.
What is the limit for inward tilt at rail seat?
Explanation: The limit for inward tilt at rail seat is from 1 in 15 to 1 in 25. The sleepers are termed defective otherwise.
How many miles long can a train be?
The freight train is now on track to stretch up to 3 miles long, with 200 cars or more. And it’s being powered, in part, by an unusual energy source: the activist investor. Companies have plenty of reasons to keep adding train cars. Long trains save on fuel and crews, reducing the cost of rail transportation.
What fuel do trains use?
diesel
Freight train engines rely almost exclusively on diesel. The first over-the-road diesel freight engines entered service in the 1930s and the number of diesel-powered trains in the U.S. surpassed 1,000 in 1940 – most for passenger service.
How many cars can a train pull?
How Many Cars Can A Train Locomotive Pull? The unit can easily handle 100 cars on the flat if you only want it to travel at 10-12 mph on a flat surface. The engine can only pull about 6-8 cars at 15 mph with a 3000 HP unit. Horsepower/ton is usually used by Western RRs to rate their trains.
Why train engines are not turned off?
Trains, being large and heavy, need the optimal brake line pressure for its efficient stopping. For obvious reasons, loco pilots never compromise on brake line pressure. Another reason for not turning off diesel train engines, lies in the engine itself.
How many ton is a locomotive?
Each locomotive weighs in at 410,000 to 425,000 pounds. It takes three motors per loaded train with two that are actually on line and making power. Those two motors will pull that 19,350-21,800 ton train at track speed of 45 mph.
How many horsepower does a train locomotive have?
“Most electric locomotives weigh between 100 and 200 short tons (90 and 180 metric tons) and provide about 6000 to 7000 horsepower (4500 to 5200 kilowatts).”
What can I tow with 5000 lbs capacity?
10 SUVs That Can Tow 5000 Lbs.
- 2019 Chevrolet Tahoe — 8,600-lb Tow Capacity.
- 2019 Ford Expedition — 9,300-lb Tow Capacity.
- 2019 GMC Yukon — 8,500-lb Tow Capacity.
- 2019 Dodge Durango — 8,700-lb Tow Capacity.
- 2019 Jeep Grand Cherokee — 7,200-lb Tow Capacity.
- 2019 Toyota Sequoia — 7,400-lb Tow Capacity.
What does 7000 GVWR mean on a trailer?
For example, let’s say the GVWR for your vehicle is 7,000 pounds. The curb weight is 5,000 pounds. That means any load you haul would have to be less than 2,000 pounds (as you would have to account for the weight of fuel and passengers).
What is payload capacity of a trailer?
Payload capacity refers to the total weight capacity of your trailer. You can calculate maximum payload capacity by subtracting the trailer weight from the GVWR. Tongue weight is the amount of your trailer’s weight that transfers to your tow vehicle through the trailer’s tongue or gooseneck.
How does a train pull so many cars?
The train has a big engine in it. This engine makes the wheels turn to pull the rest of the cars. If we consider the train and wheels as the system, the force that changes its momentum is the static friction force between the wheels and the rail.
How much does a diesel locomotive weigh?
GE AC6000CW
| hideSpecifications | |
|---|---|
| Height | 16 ft 0 in (4.88 m) |
| Axle load | 72,000 lb (32,658.7 kilograms; 32.7 tonnes) max |
| Loco weight | 423,000–432,000 lb (192,000–196,000 kilograms) 212–216 short tons (189–193 long tons; 192–196 t) |
| Fuel type | diesel fuel |
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