Basic Mechanical Engineering (B.E.- 203)

UNIT- 1

Materials: Classification of engineering material, composition of cast iron and carbon steels

on iron-carbon diagram and their mechanical properties; Alloy steel and their applications;

stress-strain diagram, Hooks law and modulus of elasticity. Tensile, shear, hardness and

fatigue testing of materials.

UNIT-2

Measurement: Temperature, pressure, velocity, flow, strain, force and torque measurement,

concept of measurement error & uncertainly analysis, measurement by Vernier caliper,

micrometer, dial gauges, slip gauges, sine-bar and combination set; introduction to lath,

drilling, milling and shaping machines.

UNIT-3

Fluids: Fluid properties, pressure, density and viscosity; pressure variation with depth, static

and kinetic energy; Bernauli’s equation for incompressible fluids, viscous and turbulent flow,

working principle of fluid coupling, pumps, compressors, turbines, positive displacement

machines and pneumatic machines. Hydraulic power & pumped storage plants for peak load

management as compared to base load plants.

UNIT-4

Thermodynamics: First and second law of thermodynamics; steam properties, steam

processes at constant pressure, volume, enthalpy & entropy, classification and working of

boilers, efficiency & performance analysis, natural and induced draught, calculation of

chimney height. Refrigeration, vapor absorption & compression cycles, coefficient of

perform (COP), refrigerant properties & eco friendly refrigerants.

UNIT-5

Reciprocating Machines: Steam engines, hypothetical and actual indicator diagram; Carnot

cycle and ideal efficiency; Otto and diesel cycles; working of two stroke & four stroke petrol

& diesel IC engines

Reference Books:-

1. Narula; Material Science; TMH

2. Agrawal B & CM; Basic Mechanical Engg. Wiley India

3. Nag PK, Tripathi et al; Basic Mechanical Engg; TMH

4. Rajput; Basic Mechanical Engg;

5. Sawhney GS; Fundamentals of Mechanical Engg; PHI

6. Nakra and Chaudhary; Instrumentation & measurement; TMH

7. Nag PK; Engineering Thermodynamics; TMH

8. Ganesan; Combustion Engines; TMH

List of Suggestive core Experiments(Please Expand it):

1. Tensile testing of standard mild steel specimen.

2. Experiments on Bernoulli’s theorem.

3. Flow measurements by ventury and orifice meters.

4. Linear and angular measurement using, Vernier; micrometer, slip gauge, dial gauge and

sine-bar.

5. Study of different types of boilers and mountings.

6. Experiment on mini-boiler (50 Kg/Hour)

7. To find COP of a refrigeration unit.

8. Study of different IC engines & measurement of B.H.P. using rope/belt dynamometer.

9. Analysis of exhaust gases on petrol, diesel & biodiesel engines.