ELEMENTS OF MECHANICAL ENGINEERING / MECHANICAL - 2ND YEAR/ KUK

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ME-101E
ELEMENTS OF MECHANICAL ENGINEERING

L T P THEORY: 75 MARKS
3 1 SESSIONAL: 25 MARKS
TOTAL: 100 MARKS
TIME: 3 HRS.

UNIT-I
PROPERTIES OF STEAM & BOILERS: FORMATION OF STEAM AT CONSTANT PRESSURE,
THERMODYNAMICS PROPERTIES OF STEAM, CONDITION OF STEAM, STEAM TABLES,
MEASUREMENT OF DRYNESS FRACTION BY THROTTLING CALORIMETER, CLASSIFICATION OF BOILERS,
COMPARISON OF WATER AND FIRE TUBE BOILERS MOUNTING AND ACCESSORIES WITH THEIR
FUNCTIONS, CONSTRUCTIONAL AND OPERATIONAL DETAILS OF COCHRAN AND BABCOCK AND
WILCOX BOILERS, PROBLEMS.

STEAM TURBINES AND CONDENSERS: CLASSIFICATION OF TURBINES, WORKING PRINCIPLE OF
IMPULSE AND REACTION TURBINE, COMPOUNDING OF IMPULSE TURBINE, COMPARISON OF
IMPULSE AND REACTION TURBINES, TYPES OF CONDENSERS, COOLING PONDS AND COOLING
TOWERS, CONDENSER AND VACUUM EFFICIENCIES.

UNIT-II
I.C. ENGINES AND GAS TURBINES: INTRODUCTION, CLASSIFICATION, CONSTRUCTIONAL DETAILS
AND WORKING OF TWO-STROKE AND FOUR-STROKE DIESEL AND PETROL ENGINES, OTTO, DIESEL AND
DUAL CYCLES, WORKING PRINCIPLE OF GAS TURBINE, CONSTANT PRESSURE GAS TURBINE CYCLE.
WATER TURBINES, PUMPS AND HYDRAULIC DEVICES: INTRODUCTION, CLASSIFICATION,
CONSTRUCTION DETAILS AND WORKING OF PELTON, FRANCIS AND KAPLAN TURBINES, SPECIFIC
SPEED AND SELECTION OF TURBINES, CLASSIFICATION OF WATER PUMPS AND THEIR WORKING,
HYDRAULIC JACK AND LIFT.



UNIT-III
SIMPLE LIFTING MACHINES: DEFINITION OF MACHINE, VELOCITY RATIO, MECHANICAL
ADVANTAGE, EFFICIENCY, LAWS OF MACHINES, REVERSIBILITY OF MACHINE, WHEEL AND AXLE,
DIFFERENTIAL PULLEY BLOCK, SINGLE, DOUBLE AND TRIPLE START WORM AND WORM WHEEL,
SINGLE AND DOUBLE PURCHASE WINCH CRABS, SIMPLE AND COMPOUND SCREW JACKS.
PROBLEMS.
UNIT-IV
STRESSES AND STRAINS: INTRODUCTION, CONCEPT & TYPES OF STRESSES AND
STRAINS, POISON’S RATIO, STRESSES AND STRAINS IN SIMPLE AND COMPOUND BARS
UNDER AXIAL LOADING, STRESS-STRAIN DIAGRAMS, HOOKS LAW, ELASTIC CONSTANTS &
THEIR RELATIONSHIPS, PRINCIPLE STRESSES & STRAINS AND PRINCIPAL- PLANES, MOHR’S
CIRCLE OF STRESSES. NUMERICAL PROBLEMS.
BENDING MOMENT & SHEAR FORCE: DEFINITIONS, SF AND BM DIAGRAMS FOR CANTILEVER
AND SIMPLY SUPPORTED BEAM. CALCULATION OF MAXIMUM SF, BM AND POINT OF CONTRAFLEXURE
UNDER THE LOADS OF (I) CONCENTRATED LOAD (II) UNIFORMLY DISTRIBUTED LOAD (III)
COMBINATION OF CONCENTRATED AND UNIFORMLY DISTRIBUTED LOADS. PROBLEMS.

TEXT BOOKS:
1. STRENGTH OF MATERIALS - G.H. RYDER, PUB.- ELBS.
2. HYDRAULIC AND FLUID MECHANICS – MODI AND SETH, PUB. – STANDARD BOOK HOUSE,
NEW DELHI
3. ENGINEERING THERMODYNAMICS – C.P. ARORA, PUB. - TMH, NEW DELHI
4. THERMAL ENGINEERING – A.S. SARAD, PUB. - SATYA PRAKASHAN, NEW DELHI.
5. ENGINEERING MECHANICS – K.L. KUMAR, PUB. - TMH, NEW DELHI.
6. THEORY OF MACHINES – S.S. RATTAN, PUB. – TMH, NEW DELHI.
REFERENCE BOOKS:
1. STRENGTH OF MATERIALS – POPOV, PUB. - PHI, NEW DELHI.
2. HYDRAULIC MACHINES – JAGDISH LAL, PUB.- METROPOLITAN, ALLAHBAD.
3. THERMAL SCIENCE AND ENGINEERING – D.S. KUMAR, PUB. – KATERIA & SONS, NEW
DELHI.
NOTE: THE EXAMINERS WILL SET EIGHT QUESTIONS, TAKING TWO FROM EACH UNIT. THE STUDENTS ARE REQUIRED TO ATTEMPT FIVE QUESTIONS IN ALL SELECTING AT LEAST ONE FROM EACH UNIT. ALL QUESTIONS WILL CARRY EQUAL MARKS.

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