Subjects
Applied Mathematics for Electrical Engineering - 3130908
Complex Variables and Partial Differential Equations - 3130005
Engineering Graphics and Design - 3110013
Basic Electronics - 3110016
Mathematics-II - 3110015
Basic Civil Engineering - 3110004
Physics Group - II - 3110018
Basic Electrical Engineering - 3110005
Basic Mechanical Engineering - 3110006
Programming for Problem Solving - 3110003
Physics Group - I - 3110011
Mathematics-I - 3110014
English - 3110002
Environmental Science - 3110007
Software Engineering - 2160701
Data Structure - 2130702
Database Management Systems - 2130703
Operating System - 2140702
Advanced Java - 2160707
Compiler Design - 2170701
Data Mining And Business Intelligence - 2170715
Information And Network Security - 2170709
Mobile Computing And Wireless Communication - 2170710
Theory Of Computation - 2160704
Semester
Semester - 1
Semester - 2
Semester - 3
Semester - 4
Semester - 5
Semester - 6
Semester - 7
Semester - 8
Basic Mechanical Engineering
(3110006)
BME-3110006
Winter-2019
BE | Semester
1
Winter - 2019
|
03-01-2020
Total Marks
70
Q1
(a)
Define prime movers. Write any four examples of the prime movers.
3 Marks
Unit : Introduction
|
Topic : Prime movers and its types
Q1
(b)
Define the terms: Hardness, Toughness, Ductility, Elasticity.
4 Marks
Unit : Engineering Materials
|
Topic : Properties of Ferrous & Nonferrous metals
Q1
(c)
List the non-convectional sources of energy. Prepare a short note on solar energy.
7 Marks
Unit : Energy
|
Topic : Solar
Q2
(a)
Distinguish between coupling and clutch.
3 Marks
Unit : Couplings, Clutches and Brakes
Q2
(b)
Describe briefly using neat diagrams the types of belt drives.
4 Marks
Unit : Transmission of Motion and Power
|
Topic : Different arrangement and applications of Belt drive
Q2
(c)
Explain with neat sketch the Vapor Compression Refrigeration system. Also draw p-h and T-s diagram for the same.
7 Marks
Unit : Refrigeration & Air Conditioning
|
Topic : Vapor compression refrigeration system
OR
Q2
(c)
Classify Air Compressors. Explain construction and working of centrifugal pump with sketch.
7 Marks
Unit : Pumps
|
Topic : Rotary and Centrifugal pumps
Q3
(a)
Prove that the difference between two specific heats of gases is equal to its characteristic gas constant.
3 Marks
Unit : Properties of gases
|
Topic : Relation between cp and cv
Q3
(b)
Differentiate between gas constant and Universal gas constant.
4 Marks
Unit : Properties of gases
|
Topic : Gas constant
Q3
(c)
One kg of gas at a pressure of 100 kPa and temperature of 17°C is compressed isothermally in a piston-cylinder arrangement to final pressure of 2500 kPa. The characteristic gas equation is given by the relation pV = 260 T per kg where T is in Kelvin. Find out (1) Final Volume (2) Compression Ratio (3) Change in enthalpy (4) Work done on the gas.
7 Marks
Unit : Properties of gases
OR
Q3
(a)
One kg gas is compressed adiabatically by following the law pV = C from initial temperature of 290 K. The initial pressure of gas is 1 bar. The initial and final volumes of gas are 0.50
m
3
and 0.05
m
3
respectively. Find the final temperature and pressure of gas. Assume γ =1.4.
3 Marks
Unit : Properties of gases
Q3
(b)
Write the uses of Steam Tables.
4 Marks
Unit : Properties of Steam
|
Topic : Use of steam tables
Q3
(c)
Find the internal energy of 1 kg of steam at a pressure of 15 bar when steam is (1) Super-heated at a temperature of 400°C and (2) Wet with dryness fraction of 0.9. Take specific heat of superheated steam as 2.1 kJ/kg-K.
7 Marks
Unit : Properties of gases
Q4
(a)
A diesel engine works on Diesel cycle with a compression ratio of 15 and cut off ratio of 1.75. Calculate the air standard efficiency. Assume γ = 1.4.
3 Marks
Unit : Heat Engines
Q4
(b)
Derive the equation for air standard efficiency of Otto cycle.
4 Marks
Unit : Heat Engines
Q4
(c)
The following readings were observed during a test on Two Stroke Single Cylinder Diesel engine:
Bore = 22 cm Stoke = 28 cm Speed = 350 rpm Net brake load = 65 kg Effective brake drum diameter = 100 cm Mean Effective Pressure = 3 bar Fuel consumption = 4 kg/h Calorific value of fuel = 43 MJ.
Calculate: (1) Indicated Power (2) Brake Power (3) Mechanical Efficiency (4) Brake thermal Efficiency
7 Marks
Unit : Internal Combustion Engines
OR
Q4
(a)
Classify I.C. Engines.
3 Marks
Unit : Internal Combustion Engines
|
Topic : Classification
Q4
(b)
Determine the brake thermal efficiency of an engine with following data:
Brake Power = 80 kW, Fuel consumption rate = 20 kg / hour, Calorific value of the fuel = 43 MJ / kg.
4 Marks
Unit : Internal Combustion Engines
Q4
(c)
Discuss the construction and working of four stroke Petrol engines.
7 Marks
Unit : Internal Combustion Engines
|
Topic : Four-stroke/ two-stroke cycle Petrol/Diesel engines
Q5
(a)
Define the terms ‘Refrigeration’, “Ton of Refrigeration” and “Coefficient of Performance”.
3 Marks
Unit : Refrigeration & Air Conditioning
Q5
(b)
What is boiler? Compare fire tube boiler with water tube boiler.
4 Marks
Unit : Steam Boilers
|
Topic : Introduction
Q5
(c)
Explain with neat sketch, the construction and working of (1) Fusible plug (2) Air preheater.
7 Marks
Unit : Steam Boilers
|
Topic : Functioning of different mountings and accessories.
OR
Q5
(a)
Differentiate between reciprocating compressor and rotary compressor.
3 Marks
Unit : Air Compressors
Q5
(b)
Differentiate between boilers mountings and accessories.
4 Marks
Unit : Steam Boilers
|
Topic : Functioning of different mountings and accessories.
Q5
(c)
Discuss the construction details and working of Cochran boiler with neat sketch.
7 Marks
Unit : Steam Boilers
|
Topic : Cochran