Basic Mechanical Engineering S1S2 Btech MG University May 2014

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Previous question paper of S1 S2 Basic Mechanical Engineering Graphics May 2014

B.TECH DEGREE EXAMINATION,MAY 2014

First and Second Semesters

EN 010 107- BASIC MECHANICAL ENGINEERING

 (New Scheme-2010 Admission onwards)

[Regular/Improvement/Supplementary]

[Common for All Branches]

Time : Three Hours                                                                                    Maximum:100 Marks

 

Part A

Answer all questions.

Each Question Carries 3 marks

  1. Define the terms (i) State; (ii)Property; and (iii) Cycle.
  2. What is Phychrometry?
  3. Name different methods for Power Transmission
  4. Define the term slip of a reciprocating pump
  5. Name different types of patterns used in moulding

 

Part B

Answer all questions.

Each Question Carries 5 marks

  1. State and explain First law of Thermodynamics
  2. What are the desired properties of an ideal refrigerant?
  3. List the advantages and disadvantages of flat belt drives
  4. What is priming? Why is it necessary?
  5. State the advantages of gas welding?

Part C

Answer all questions.

Each Question Carries 12 marks

State the Kelvin Plank's statement and Clausius statement of second law of thermodynamics and prove its equivalence

or

Derive an expression for the air-standard efficiency of Otto cycle
 

Compare and contrast four stroke cycle engines with two stroke cycle engines

or

Explain the working of a vapour absorption refrigerator with a suitable sketch.

 

Derive the expression for calculating the length of belt for a cross belt drive

or

Draw the arrangement of a compound gear train. What are its advantages compared to simple gear train? Obtain the equation for its velocity ratio

 

Sketch schematically the arrangement of a diesel power plant for electric power generation and explain the functions of its main components

or

Sketch and explain the working of a low head reaction turbine

Sketch a milling machine and indicate the important components in it

or

Describe with a sketch the principle of gas welding process. Draw the three types of gas flames, stating their applications

basic-mechanical-engineering-s1s2-btech-mg-university-may-2014