PART – A

ELECTRICAL TECHNOLOGY

UNIT-I
FUNDAMENTALS OF ELECTRICAL QUANTITIES – MEASUREMENTS:
Definition for Conductor, Insulator & semi-Conductor – Basic Electrical Quantities and their
units – Ohm’s law – Resistance in series, parallel and series – parallel combinations – Units of
work, power and energy. Calculation of Electricity bill for different types of consumers –
Active and Passive circuits – Junction, branch and loop in circuits, Kirchhoff’s laws – Star –
Delta configurations, star-delta transformations – Classification of measuring Instruments –
Types of MI& MC Instruments – Definitions of accuracy, precision, error, resolution and
sensitivity – types of errors.

UNIT-II
ELECTRICAL DOMESTIC WIRING – HAZARDS, FIRST-AID & SAFETY PRECAUTIONS:
Electrical Symbols – Size of wires & cables for domestic & Power loads – Types of Wires &
Cables – Types & installation of House Wiring Systems & Accessories: Surface conduit
wiring, CTS Wiring, Concealed Wiring, and PVC conduit wiring – Comparison of various
wiring systems – Distribution fuse boards – Main switches – Different types of fuses and fuse
carriers – Safety procedures – Electric shock and first aid, causes for fire hazards in Electrical
installations – Requirements of good lighting different types of lamp fittings laws of
illumination.

UNIT-III
ELECTRICAL INSTALLATION & ESTIMATION:
Electrical installation testing – departmental procedure for testing before giving service
connection – departmental procedure for obtaining service connection – Estimation of
domestic lighting installation service main – types of wire – specification – quantity of
materials required for service main – estimation and selection of interior wiring system
suitable to a given building – number of circuits – calculation of length of wire and quantity of
accessories required – estimates of materials for execution of the domestic wiring installation as per National Electrical act 2003 . Power wiring installation & drawing wiring layout for abig office building, electrical laboratory, big industry, big hotel with lift arrangement and a residential building with 2 bed room house. – estimation and costing upto 20 kVA calculation of load current based on ratings of various equipment’s to be installed.

PART – B

MECHANICAL TECHNOLOGY

UNIT IV
Classification of IC Engines. – 4 stroke and 2 stroke engines comparison –Types of Air
Compressors –working of air compressors. Simple vapor compression refrigeration system–Types of air conditioning systems-window air-split–. Central–packaged air conditioner–Ducting –Different types of ventilation system.

UNIT V
Transmission of power, Belt, Rope, Chain and gear drive-simple problems. Earth moving
machinery and Mechanical handling equipment – bull dozers – power showels – Excavators
– concrete mixer –Belt and bucket conveyers.

UNIT VI
WELDING PROCESSES: Introduction to welding classification of welding processes,
Oxyacetylene welding – equipment, welding fluxes and filler rods, Gas cutting, Introduction
to are welding – Manual metal are welding. Submerged are welding, TIG and MIG
processes, soldering and brazing Importance, comparison and applications.

TEXT BOOKS:
1. Electrical Technology, B.L. Theraja, S. Chand Publishers.
2. Elements of Mechanical Engineering by S.N. Lal, Cengage Learning, 2013
3. Mechanical Technology, Khurmi.

REFERENCES:
1. Mechanical Technology, Kondandaraman C.P.
2. Construction Planning, Equipment and methods – Purify.
3. Introduction to Electrical Engineering, M.S. Naidu & S. Kamakshaiah, TMH