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Download Previous Year Diploma Paper of Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Paper

Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Diploma PSBTE Paper

                                     SECTION-A

Q1. Fill in the Blanks                                                                                           15×1=15

  (a) Temperature is a _____________ Property
  (b) Work done in a free expansion process is ____________
  (c) Gas laws are applicable to __________ gases.
  (d) Babcock and Wilcox boiler is a ____________ tube boiler.
  (e) Second law of Thermodynamics defines _____________
  (f) The value of Molar Gas constant is ____________
  (g) Diesel Cycle consists of following four processes _______________
  (h) Triple point of water exists at _________ temperature and ______ pressure.
   (i) In Throttling process _______ is constant .
   (j) The three modes of heat transfer are _______ , __________ and ___________

                                     SECTION-B

Q2. Write short note (with diagram) on any six:         5X6=30

   (a) Differentiate between reversible and irreversible processes.
   (b) Write a short note on Mollier diagram
   (c) Differentiate between Molar gas constant and Ideal gas constant.
   (d) Compare a fire tube boiler with a water tube boiler.
   (e) Explain the following terms (1) Open system (2) Closed system (3) Isolated system.
   (f) For same compression ratio Otto cycle is more efficient than Diesel cycle, explain.
   (g) Compare a reciprocating air compressor with a rotary compressor.

                                     SECTION-C

Q3. Attempt any three questions.                                                       3×10=30

   Q3 Derive an expression for work done during an Isothermal process.
  Q4 Explain construction and working of Babcock and Wilcox boiler with a neat sketch.
 Q5 Derive an expression for standard efficiency of an Otto cycle.
 Q6 A vessel of capacity 4 m³ has 16 kg of an ideal gas having molecular mass of 44 at a temperature of 25 ºC. Find the pressure of the gas in bar.
Q7 Explain two modes of heat transfer in gases, liquids and solids.

Railways ,Bridges and Tunnels RBT 5th Sem/Civil/ May 2015 Diploma PSBTE Paper

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Section a Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Diploma PSBTE Paper

The object of preliminary survey is to determine the details of different alternative route as found and drawn in _______ .

(a) Temperature is a _____________ Property
(b) Work done in a free expansion process is ____________
(c) Gas laws are applicable to __________ gases.
(d) Babcock and Wilcox boiler is a ____________ tube boiler.
(e) Second law of Thermodynamics defines _____________
(f) The value of Molar Gas constant is ____________
(g) Diesel Cycle consists of following four processes _______________
(h) Triple point of water exists at _________ temperature and ____________ pressure.
(i) In Throttling process _______ is constant .
(j) The three modes of heat transfer are _______ , __________ and ___________

The centre line of alignment is marked on the ground by fixing about 15 cm pegs every ________ interval. Flat footed rails are _____________ to Bull headed rails. Double headed rails require _______________fastening as compared to F.F. rails. The distance of various gauges in India is: B.G. ________ ; N.G. ________ . A viaduct in the bridge constructed over a _______________ . An intermediate support in the bridge is called ______________ . Temporary bridges are __________ durable than permanent bridges. Area of the opening through which water flows under the bridge is called _______________. End support of the roadway bridge is called _____________. The full face heading method is used for tunneling small tunnels in __________ rocks. The object of tunnel ventilation is to remove _____________. The size of the tunnel depends upon the ____________ and volume of traffic.  The tunnels which are used for carrying road or railway track are known as _______________tunnels. The center line is extended inside the tunnel by means of _______________.

Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Diploma Paper Click Here

Section B :Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Diploma PSBTE Paper

I. Functions of component parts of Railway Track.

(a) Differentiate between reversible and irreversible processes.
(b) Write a short note on Mollier diagram
(c) Differentiate between Molar gas constant and Ideal gas constant.
(d) Compare a fire tube boiler with a water tube boiler.
(e) Explain the following terms (1) Open system (2) Closed system (3) Isolated system.
(f) For same compression ratio Otto cycle is more efficient than Diesel cycle, explain.
(g) Compare a reciprocating air compressor with a rotary compressor.

II. Requirement of an ideal permanent way.

Requirement of an ideal permanent way.

III. Gauge of track and loading gauge.

Gauge of track and loading gauge.

IV. Sleepers.

Sleepers.

V. Pier and abutment

 Pier and abutment

VI. Rocker bearing

Rocker bearing

VII. Types of wing walls

Types of wing walls

VIII. Tunnel ventilation

 Tunnel ventilation

Highway Engineering HE 5th Sem/Civil/May 2019 Diploma PSBTE Paper Click Here

Railways ,Bridges and Tunnels RBT 5th Sem/Civil/ May 2015 Diploma PSBTE Paper

Get Started https://www.youtube.com/watch?v=UHX6f8TIvX8https://www.youtube.com/watch?v=M_RR6LVICp0https://www.youtube.com/watch?v=mV41CMWonN4https://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section c :-Railways ,Bridges and Tunnels RBT 5th Sem/Civil/May 2015 Diploma PSBTE Paper

Describe in detail the different types of surveys to be conducted in case of new railway project.

Q 3 Derive an expression for work done during an Isothermal process.
Q 4 Explain construction and working of Babcock and Wilcox boiler with a neat sketch.
Q 5 Derive an expression for standard efficiency of an Otto cycle.
Q 6 A vessel of capacity 4 m³ has 16 kg of an ideal gas having molecular mass of 44 at a temperature of 25 ºC. Find the pressure of the gas in bar.
Q7 Explain two modes of heat transfer in gases, liquids and solids.

Give classification of bridges.

Classification of bridges.

Explain the factors affecting the selection of a bridge.

Factors affecting the selection of a bridge.

Explain the method of construction of tunnel in a soft rock by needle beam method.

Method of construction of tunnel in a soft rock by needle beam method.

Describe the procedure of construction of tunnels in hard rock with dull face heading method.

Procedure of construction of tunnels in hard rock with dull face heading method.

Write the notes on e) Formation width.

Short Note e) Formation width.

Explain the different joints provided in rigid pavements.

Different joints provided in rigid pavements.

Define soil erosion and explain the methods to control soil erosion.

Soil erosion and  methods to control soil erosion.

What is soil stabilization? What are the different methods of soil stabilization?

Soil stabilization and different methods of soil stabilization

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