Unit 1 Basic Mechanical Tools and Components

2 lecture hours

• Introduction of mechanical engineering
• Use of mechanical engineering-In day to day life and Interdisciplinary use Items in general use-identification criteria
• major types
• specifications and uses such as bolts
• oil seals
• Pipes and pipe fittings- Types
• specifications and uses
• Hand and power tools: Types
• specifications and uses of spanners (such as fix, ring, box, pipe
• specifications and uses of hand tools (such as, Pliers
• Screw drives
• Hand hacksaw
• specifications and uses of power tools (Portable Drilling and grinding machine
• Electric power saw, portable electric cutter
• electric demolition hammer
• power screw driver) Introduction to lathe
• milling and grinding machines
• Types of operations / jobs which can be performed on machine tools listed above
• Various process like Carpentry

Unit 2 Thermal systems

• Steam generation
• Steam formation process. 2 20 Program Name: Diploma in Engineering Level: Diploma Branch: Environmental Engineering Course / Subject Code : DI01013021 Course / Subject Name : Basics of Mechanical and Electrical Engineering Boilers: Introduction
• Construction and working of Cochran
• Lancashire, and Babcock and Wilcox boiler
• Functioning of different mountings and accessories
• Prime movers: Definition
• Steam turbine -working and applications
• Refrigeration: Definition
• Major components of refrigeration systems
• Ton of refrigeration
• Air Conditioning: Definition
• Properties of air, Types of air conditioning systems
• Central air conditioning system)

Unit 3 Hydraulic andPneumatic Devices

3 lecture hours

• Concept of theory of fluid flow
• General properties of fluids
• Pump: Working principle
• Construction and Working of centrifugal and reciprocating pumps
• Water turbines: Working principle
• Air compressor: Working principle
• Other hydraulic/pneumatic/ hydro-pneumatic equipment
• Principle of working- hydraulic lift
• hydraulic pump
• hydraulic power pack
• hydraulic jack

Unit 4 DC Circuits

2 lecture hours

• Concept of Electric Potential, EMF, Current
• Power and Energy Resistor
• Inductor and Capacitor Effect of temperature on resistance of conductor Ohm’s law: Applications and limitations Kirchhoff’s voltage law and Kirchhoff’s current law Types of connections: series and parallel connections of resistors Battery: Concept of cell and battery
• Rating of battery
• Series and parallel connection of batteries

Unit 5 AC Circuits and Wiring

3 lecture hours

• Basic Terminology: Cycle
• Time- period
• RMS value
• Average value
• Form factor
• Peak factor Pure resistor
• inductor and capacitor with AC supply Power triangle and power factor Domestic wiring: Types of AC supply
• Concealed and conduit wiring
• Power rating of domestic appliances
• fitting and fixtures
• Sample example of one room electrification
• Staircase wiring and godown wiring
• electrical unit consumption and billing
• Basic concept of energy audit Program Name: Diploma in Engineering Level: Diploma Branch: Environmental Engineering Course / Subject Code : DI01013021 Course / Subject Name : Basics of Mechanical and Electrical Engineering Electrical Safety: Fuse, MCB, ELCB
• Need of Earthing
• First aid against electrical shock

Unit 6 Electrical Machines

3 lecture hours

• Types of electrical machines: Static and Rotating
• AC and DC
• Basic construction and applications of DC machines: DC motor and generator
• Basic construction and principle of working: Transformer
• Auto transformer Basic construction and applications of AC machines:
• Single phase and three phase induction motor
• Alternator Construction and applications of BLDC motor Use of DG set as emergency supply Solar energy: PV cell
• Panel and Arrays
• Block diagram of solar powersystem Wind energy: Block diagram of wind power system