Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

1)(a) Determine speed controls of various system of motors which is utilized in the electric train?

(b) describe co-efficient of adhesion and describe factors on which it depends.

2)(a) Describe different arrangement of current collection which is utilized in the electric traction.

(b) Describe current trends in electric traction in detail.

3) Two stations X and Y are 12Km apart and average speed of train is 60Kmph. Acceleration is 5Kmph, retardation in coasting is 0.3kmph and braking is 5Kmph respectively. Let quadrilateral approximation of speed, time curve, find out the duration of acceleration, coasting and braking periods and distance covered in these span of time.

4) prepare down the principle of regenerative braking. Describe regenerative braking regarding:

a) DC motors,

b) Induction motors.

5)(a)What are different methods of speed control of series motors and describe their scope of speed range.

(b) Describe advantage and disadvantage of the induction motor for the traction duties?

6)(a) prepare down the merits of series parallel control of motors over the rheostatic method of starting and speed control?

(b) What do you mean by multiple unit control and for what application you will propose this?

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M911476

Have any Question? 


Related Questions in Mechanical Engineering

1 find the maximum energy in terms of d of the 3 3

1. Find the maximum energy in terms of D of the 3 * 3 two-dimensional Ising model, and draw one of the configurations with that energy. 2. In terms of the interaction constant D, find the difference in the average energy ...

The tires of the 4555-lb sedan are 65 in wide figure p510

The tires of the 4555-lb sedan are 6.5 in. wide (Figure P5.10). Each tire contacts the ground over a distance of 4.25 in. as measured along the vehicle's length. Calculate the compressive stress between each tire and the ...

Determine the maximum in-plane stresses for a cylindrical

Determine the maximum in-plane stresses for a cylindrical tank made of steel (E = 205 GPa, ν = 0.30), having a mean radius of 2 m and a thickness of 20 mm, and subjected to an internal pressure p = 1 MPa.

The illustration below shows a vane with a turning angle

The illustration below shows a vane with a turning angle θ which moves with a steady speed v c . The vane receives a jet that leaves a fixed nozzle with speed θ. (a) Assume that the vane is mounted on rails as shown in t ...

While brewing beer a delinquent professor finds it

While brewing beer, a delinquent professor Finds it necessary to rapidly cool the "wort," a fermented malt mixture, from near the boiling point of water to room temperature. A 5.7 L sample of the wort at 363 K is combine ...

Fixed-price contracts where the contractor bids a fixed

Fixed-price contracts, where the contractor bids a fixed price to complete a system development, may be used to move project risk from client to contractor. If anything goes wrong, the contractor has to pay. Suggest how ...

An incompressible fluid flows past a flat plate as in the

An incompressible fluid flows past a flat plate, as in the figure below, with a uniform inlet profile and a polynomial exit profile Compute the volume flow Q across the top surface of the control volume. The plate has wi ...

1 a rectangular block of concrete 3 ft times 3ft times 6 in

1. A rectangular block of concrete 3 ft × 3ft × 6 in. has its 6- in. side half buried at the bottom of a lake 23 ft deep. What force is required to lift the block free of the bottom? What force is required to maintain th ...

1 two clean and parallel glass plates separated by a gap of

1. Two clean and parallel glass plates, separated by a gap of 1.625 mm, are dipped in water. If σ = 0.0735 N/m, determine how high the water will rise. 2. A glass tube having an inside diameter of 0.25 mm and an outside ...

Task to identify research and present in both written and

Task: To identify, research, and present (in both written and oral formats) a topic in engineering that is currently the focus of ongoing (within the past 5 years) research, investigation, and/or development.The topic mu ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro