Visvesvaraya Technological University (VTU) 2007 B.E Electrical and Electronics Engineering Model EME2 - Question Paper

ELEMENTS OF MECHANICAL ENGINEERING
Model ques. paper No.2
I / II Semester B.E. Degree exam (Common to all Branches)
Prepared at the VTU Workshop on CAED, EME & Workshop Laboratory
held on 14th September 2006 at the Department of Mechanical Engineering, M.C.E, Hassan
Sub Code : 06 EME 14 / 06 EME 24 Marks: 100

Note:
1.Answer any 5 full ques. choosing at lowest 2 ques. from part A & 2 ques. from part B
2 .Use of steam tables is permitted
PART A
1. a) explain the advantages of Non-conventional energy sources over conventional
energy sources. . 05 Marks
b) obtain the enthalpy of one kg of steam at 12 bar, when steam is 1) dry saturated 2)
22% wet 3) superheated to 250°C. presume specific heat of the superheated
steam as 2.25KJ/Kg K 05 Marks
c) discuss with a neat sketch the construction and working of Babcock and Wilcox boiler 10 Marks
2. a) Sketch and discuss the working of reaction steam turbine with the help of pressure and velocity profile diagram 05 Marks
b) discuss with the working of closed cycle gas turbine with a suitable schematic diagram. 05 Marks
c) How are water turbines classified? discuss with sketch the working of Kaplan turbine 10 Marks
3. a) Classify IC engines 05 Marks
b) Differentiate ranging from 4 stroke and 2 stroke IC engines 05 Marks
c) discuss the construction and working of a 4 stroke petrol engine 10 Marks
4. a) discuss with a neat sketch the working of vapour compression refrigerator 10 Marks
b) ) With a neat sketch discuss the working of a typical room air conditioner 10 Marks

Earning:   Approval pending.