AUTO 4021633 HEATING VENTILATION AND AIR CONDITIONING SYSTEMS
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Thursday, November 14, 2024
AUTO - 4021632 - HEAVY VEHICLE ENGINEERING HEV STUDY MATERIALS #HVE
4021632 - HEAVY VEHICLE ENGINEERING HEV STUDY MATERIALS
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EXAM DATE : 14/11/2024 | EEE&ECE - #MC CSE - CC&IOT | CIVIL - EE | AUTO - PUT | MECH - TE2 | STUDY MATERIALS
EXAM DATE : 14/11/2024
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CLICK ON THE LINK TO GO TO STUDY MATERIALS PAGE 👇👇👇
AUTO 4021520 - POWER UNITS AND TRANSMISSION STUDY MATERIALS
4020520 - THERMAL ENGINEERING II STUDY MATERIALS
CSE - 4052520 CC & IOT STUDY MATERIALS 👇
CIVIL 4010520 - ENVIRONMENTAL ENGINEERING STUDY MATERIALS
ECE - 4040520 - MICROCONTROLLER STUDY MATERIALS
14.11.2024 👇
Evening Exams
MECHANICAL - 4020633 - AUTOMOBILE TECHNOLOGY - AT - STUDY Materials
Wednesday, November 13, 2024
EEE - ECT - ELECTRICAL CIRCUIT THEORY STUDY MATERIALS
EXAM DATE 05.05.2025 AN
Materials Updated February 2025
*ECT IMPORTANT*
Unit 1
1. State and explain kirchoffs law/Ohms law.
2. Derive 3 resistors connected in series and parallel?
3. Mesh problem (2 loops)
4. Kirchoffs law problem (2 closed loop network method)
*Unit 2*
1. State and explain Super position theorem.
2. State and explain Pmax theorem.
3. SPT Problem
*Unit 3*
1. Form factor, Peak Factor
2. Avg. Value & Rms Value derivations
3. RLC series ckt problem (can expect RL, RC based too)
*Unit 4*
1. Compare series and Parallel response.
2. Series Response problem (Finding C & Finding Fr & QF problems)
3. Parallel Response (Finding Fr, QF, BW)
*Unit 5*
1. Derive Wattmeter Power and Power Factor derivation.
2. Wattmeter based problem (finding input power, Pf, IL)
3. Star based Problem (finding IL, PF, P)
ECT IMPORTANT PROBLEM WITH ANSWERS 👇
EEE - ECT REVISION TEST QUESTIONS 👇
ECT UNIT 3 - IMPORTANT 10 MARKS QUESTIONS👇
ECT UNIT 1 - CLASS TEST QUESTION 👇
EEE - ECT - ELECTRICAL CIRCUIT THEORY STUDY MATERIALS
*ECT IMPORTANT*
Problems on
U1 : Kirchoff law, Mesh, Node
U2 : Super position theorem, Nortons Theorem
U3 : RL, RC, RLC
U4 : Admittance method or Compare Series & Parallel, Parallel Resonance
U5 : Wattmeter Method
Unit 1 important
1. State and explain Kirchoffs law ?
2. Derive the expression for 3 resistors connected in series or parallel
3. Kirchoffs law problem
4. Mesh method problem
5. Nodel method problem
Unit 2 important 👇
1. State and explain Super Position Theorem
2. Super position Theorem problem
3. Norton Theorem problem
UNIT 3
*IMPORTANT PROBLEMS*
1. Derive the expression for Impedance in RL or RL or RLC Series Circuit
2. A coil of resistance 10Ω and an inductance of 0.1 H is connected in series with a capacitance of 150μF with a voltage of 200V, 50Hz supply. Calculate (i) inductive reactance (ii) capacitive
reactance (iii) impedance (iv) current (v) power factor (vi) voltage across the coil and
capacitor.
3. A resistor of 100Ω is connected in series with 50μF capacitor to supply of 200V, 50Hz. Find (i) impedance (ii) current (iii) power factor (iv) voltage across the resistor and (v) voltage
across capacitor.
4. Find the impedance, current and phase angle of the series circuit having a resistance of 10Ω
and inductance of 10millihenry. The applied voltage is 200V, 50Hz.
5. Derive the expression for Average Value or RMS Value?
*UNIT 4*
*IMPORTANT PROBLEMS*
1. Compare Series & Parallel Response?
2. An inductive circuit of resistance 2 Ohms and inductance of 0.01H is connected to a 250V, 50Hz supply. What capacitance placed in parallel will produce resonance? Find the total current taken from the supply and the current in each branch circuits.
3. A coil of resistance 12Ω and inductance 0.12 H is connected in parallel with a 60µF capacitor to a 100 Volt variable frequency supply. Calculate (i) the frequency at which the circuit will act as a non-inductive resistor (ii) the value of dynamic impedance at resonance.
4. In a RLC series resonance circuit a resistance of 10 Ω and an inductance of 20mH is connected in series with a 0.5 MFD capacitor. Calculate i) Resonance frequency ii) Q-factor of the coil iii) Bandwidth and iv) Power consumed at resonance if applied voltage to circuit is 200V a.c.
5. Two impedances Z1 = 8+j6 and Z2 = 3-j4 are connected in parallel across 230V, 50Hz supply. Calculate (a) Current in each branch (b) the total current of the circuit (c) power factor (d) Power taken by the circuit.
UNIT5
*IMPORTANT problemS*
1. The power input to a 2000V, 50Hz, three phase motor is measured by two wattmeters which indicate 330KW and 120KW respectively. Calculate the input power, power factor and line current.
2. A three phase 440 volts motor operates with a power factor of 0.65. Two wattmeters are connected to measure the input power, and the total power taken from the mains is 33KW.
Find the readings of each wattmeter.
3. A 3 phase motor delivers an output of 46KW and operated within efficiency of 90% at 0.85 lagging power factor. Calculate the line current and total power drawn if the supply voltage is 400V.
4. A balanced star connected load of (8+j6) ohms per phase is connected to a 3 phase 230V
supply. Find the line current, power factor, power and total volt ampere.
5. Three similar coils each having a resistance of 15Ω and inductance of 0.5 H are connected in delta to a three phase 415V, 50Hz supply. Find the i) Line Current ii) P.F and iii) Power
EXAM DATE : 13.11.2024 STUDY MATERIALS
EXAM DATE 13.11.2024
MORNING EXAMS
MECH - MANUFACTURING PROCESS STUDY MATERIALS
EEE - III SEM - ELECTRICAL MACHINES I STUDY MATERIALS
ECE - R2023 - III SEM - EDC STUDY MATERIALS
CSE - III SEM - DIGITAL LOGIC DESIGN - STUDY MATERIALS
EVENING EXAMS
ECE - 4040620 - BIO MEDICAL INSTRUMENTATION ( BMI ) QUESTION BANK
EEE 4030620 - ENERGY CONSERVATION AND AUDIT QUESTION BANK
CSE - 4052620 - COMPUTER NETWORKS AND SECURITY CNS STUDY MATERIALS
MECHANICAL - 4020610- INDUSTRIAL ENGINEERING AND MANAGEMENT STUDY MATERIALS
AUTO - 4021620 - INDUSTRIAL MANAGEMENT AND TRANSPORT ENGINEERING - IMTE
CIVIL - 4010620 - ESTIMATION COSTING AND VALUATION
Tuesday, November 12, 2024
EEE - III SEM - ELECTRICAL MACHINES I STUDY MATERIALS
ELECTRICAL MACHINES 1
UNIT – 1 ( 10 MARKS )
1. ARMATURE REACTION IN DC GENERATORS
2. TYPES OF DC GENERATORS
3. EMF EQUATION OF DC GENERATORS
4. METHODS OF IMPROVING COMMUTATION
5. CAUSES OF FAILURE TO BUILD UP EMF AND REMEDY:
UNIT – 2 ( 10 MARKS )
1. FOUR POINT STARTER
2. THREE POINT STARTER
3. SPEED CONTROL OF DC MOTORS
4. SERVO MOTOR
5. PERMANENT MAGNET DC MOTOR ( PMDC )
UNIT -3 ( 10 MARKS )
1. IDEAL TRANSFORMER
2. AUTO TRANSFORMER
3. PARALLEL OPERATION OF SINGLE-PHASE TRANSFORMERS
4. EMF EQUATION OF TRANSFORMER:
5. Condition For Maximum Efficiency
6. ALL-DAY (OR ENERGY) EFFICIENCY
UNIT – 4 ( 10 MARKS )
1. ON-LOAD TAP CHANGER:
2. PARALLEL OPERATION OF THREE PHASE TRANSFORMER AND CONDITIONS
3. THREE PHASE TRANSFORMER CONNECTION
4. CONSTRUCTION OF THREE PHASE TRANSFORMER
5. BUCHHOLZ RELAY:
UNIT -5 ( 10 MARKS )
1. MEASUREMENT OF EARTH RESISTANCE
2. TRANSFORMER OIL TESTER: ( BDV TEST )
3. ACIDITY TEST:
4. PROCEDURE FOR PREVENTIVE MAINTENANCE:
5. RESURFACING OF COMMUTATOR
6. DEFECTS IN COMMUTATOR AND REMEDIES
EEE - III SEM - ELECTRICAL MACHINES I STUDY MATERIALS
Model question papers 1&2 Download👇
SOM - REGULATION 2023 STUDY MATERIALS
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DEPARTMENT OF MECHANICAL ENGINEERING
SUBJECT NAME: STRENGTH OF MATERIALS
SUBJECT CODE: 1020233230
SLOW LEARNERS QUESTIONS BANK
UNIT-I
ENGINEERING MATERIALS & HARDNESS TEST
Important Questions (10 Marks)
1. Draw and explain of a Brinell hardness test.
2. Draw and explain of a Rockwell hardness test.
3. Draw and explain of a Vickers Hardness test.
4. Explain construction and working of Shore Hardness Test (Durometer)
UNIT-II
SIMPLE STRESSES AND STRAINS & MECHANICAL TESTING OF MATERIALS:
Important Questions (10 Marks)
1. Explain with neat sketch the testing procedure of the creep on materials.
2. Explain with neat sketch, the testing procedure of the fatigue test on the materials.
3. Explain tensile test of mild steel in UTM with the help of stress, stress diagram.
(Or)
Explain the stress-strain diagram of a mild steel specimen and mark the salient points. (Or) Explain the
behavior of mild steel in tension up to rupture with stress and strain diagram.
4. Find the Young’s modulus of a brass rod of diameter 25mm and of length 250mm which is subjected
to a tensile load of 50kN when the extension of the rod is equal to 0.3mm.
5. A steel rod of 20 mm diameter and 3 m long is subjected to an axial pull of 20 kN. Find the stress,
strain and elongation in the bar, if the modulus of elasticity of the material is E = 2 x 105 N/mm2
.
UNIT-III
ELASTIC CONSTANTS & STRAIN ENERGY
Important Questions (10 Marks)
1. A steel bar 400mm long, 60mm wide, and 15mm thick is subjected to an axial tension of 100kN.
Calculate the final dimensions and change in volume of the bar. Take E = 2 x 105 N/mm2
and 1/m =
0.3.
2. A steel rod 2 m long and 200 mm diameter is subjected to an axial pull of 45 kN. Find the changes in
length, diameter and volume of the rod. Take E = 2 x 105 N/mm2
and 1/m = 0.3.
3. The young’s modulus for a given material is 1 x 105 N/mm2
and modulus of rigidity is 0.4 x 105
N/mm2
. Find the bulk modulus and the lateral contraction of a round bar of 50 mm diameter and 2.5 m
long when stretched by 2.5 mm.
4. A bar of length 150 mm is 50 mm in diameter. It is subjected to an axial pull of 400kN. The extension
in length and contraction in diameter were found to be 0.25mm and 0.02mm respectively. Determine
the values of elastic constants.
5. A weight of 1400N is dropped onto a collar at the lower end of a vertical bar 3m long and 25mm in
diameter. Calculate the height of drop, if the maximum instantaneous stress produced is not to exceed
120N/mm2
. Take 0.2 x 106 N/mm2
.
6. A wagon weighing 50KN attached to a rope traveling down a slope at speed of 3m/sec. If it’s suddenly
stopped by pulling a rope, what is maximum instantaneous stress and tension induced in the rope due
to stopping? Assume the length and areas of the rope are 150m and 2000mm2 respectively .Take E=1 x
105N/mm2
.
UNIT-IV
TORSION & MATERIAL TESTING
Important Questions (10 Marks)
1. Explain the construction and working of torsion testing machine with a neat sketch.
2. The shaft running at 180rpm has to transmit 100KW the shaft should not be stressed beyond 60N/mm2
and should not twist more than 10
in a length of 3m select a suitable diameter of shaft. Take N=0.8 x
105N/mm2
.
(Or)
A solid shaft is transmitting 100kW power at 180rpm. If the allowable stress in 60N/mm2
, find the
necessary diameter for the shaft. The shaft is not to twist more than 1° in a length of 3m. Take C =
80kN/mm2
.
3. A solid shaft 20mm diameter transmit 10KW at 1200rpm. Calculate the maximum intensity of shear
stress induced and angle of twist in degree in a length of 1m .if the modulus of rigidity for the shaft
material is 8x104 N/mm2
4. A hollow shaft having inner diameter 0.7 times outer diameter is to replaced by s solid shaft of a same
material is to transmit 500KW at 200 rpm with a permissible shear stress is 80N/mm2
, calculate the
percentage saving in material.
5. A hollow circular shaft of external diameter 75mm and internal diameter 40mm is to transmit power at
a speed of 40rpm if the maximum shear not to be exceed 80N/mm2
calculate the power in KW
transmitted by the shaft.
UNIT-V
SPRINGS & THIN CYLINDERS
Important Questions (10 Marks)
1. Find the diameter of the wire, diameter of the coil and number of turns of a closely coiled helical
spring of stiffness 20N/mm deflection. The maximum shear stress in the spring metal is not to exceed 80N/mm2 under a load of 600N. The diameter of the coil is to be 10 times the diameter of wire. Take N
=85 KN/mm2
.
2. A closely coiled helical spring made of steel wire 10 mm diameter has 15 coils of 100 mm mean
diameter. Calculate the deflection under an axial load of 200N. What is the stiffness of the spring?
Take C = 9 x 104 N/mm2
.
3. A close coiled helical spring has the stiffness 40 N/mm. Determine the number of coils when the
diameter of the wire is 10mm and mean coil diameter is 80mm. N = 0.8 x 105 N.mm2
. (Answer: n =
4.88 say 5 coils)
4. A truck weighing 30KN and moving at 5km/hr has to be brought to rest by buffer .find how many
springs each of 18coils will be required to the energy of motion during a compression of 200mm.the
sprigs made out 25mm diameter of steel rod coiled to a mean diameter 240mm take N=0.84 x
105N/mm2
.
5. Weight of 150 N is dropped onto a compression spring with 10 coils of 12 mm diameter closely coiled
to a mean diameter of 150mm. if the instantaneous contraction is 140mm, calculate the height of drop.
Take C = 0.8 x 105 N/mm2
.
6. A water main 1.5 m diameter and 15 mm thick is subjected to an internal pressure of 1.5 N/mm2
.
Calculate the circumferential stress and longitudinal stress induced in the pipe.
7. A cylindrical shell 3 m long, 500 mm diameter is made up of 20 mm thick plate. Find the cylinder is
subjected to internal pressure of 5 N/mm2
. Find the resulting hoop stress, longitudinal stress, change in
diameter, change in length and change in volume. Take E = 2 x 105 N/mm2
and 1/m = 0.3
CSE - III SEM - DIGITAL LOGIC DESIGN - STUDY MATERIALS
CSE - III SEM - DIGITAL LOGIC DESIGN - STUDY MATERIALS
DLD important questions
Unit 1
i) Explain Gray Code and Unicode with examples.
ii) Explain Logic Gates with neat diagram and truth table
iii) Explain how NAND gate is works as a Universal Gate
iv) Why NOR gate is called as Universal Gate?
Also explain how it works as universal gates
Unit 2.
i) State and Prove Demorgan’s Theorem.
ii) Explain Adders with neat diagram
iii) Explain Digital Comparator with neat diagram.
iv) Explain Multiplexer with neat diagram
V) Explain Subtractors
Vi) Decoder
Unit 3.
i) Explain SR Flipflop, JK Flipflop, D Flipflop with its Function
ii) Explain Parallel to serial Convertor.
iii) Explain Asynchronous Up Counter with neat diagram.
iv) Explain Synchronous Down Counter with neat diagrams
V) Explain Decade Counter
Unit 4.
i) Explain Sensors with its types
ii) Explain TTL and CMOS interface.
iii) Explain Successive Approximation A/D Convertor.
iv) Explain R-2RLadder D/A Convertor
V ) Explain Dual Slope ADA convertor
Unit 5
i) Define Memory Read and Memory Write. Also explain ROM and its types
ii) Define Access Time and Word Length. Also Explain RAM and its types
iii) Difference between Fixed Logic and
Programmable Logic.
Iv) Differentiate Flash ROM and NVRAM
V)Explain PLA Architecture
Vi) Explain Pendrive, Sd card and SSD
DLD NEW QUESTION BANK 👇PDF
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DLD UNIT 5 - ENGLISH HAND WRITTEN NOTES 👇
Monday, November 11, 2024
EXAM DATE : 12.11.2024 BOARD EXAM SUBJECTS AND STUDY MATERIALS
BOARD EXAM - NOVEMBER 2024
EXAM DATE : 12.11.2024 (MORNING EXAMS)
CIVIL 4010510 STRUCTURAL ENGINEERING - STUDY MATERIALS
AUTO - 4021510 - FUEL COMBUSTION AND EMISSION CONTROL STUDY MATERIALS
4020510 - DESIGN OF MACHINE ELEMENTS STUDY MATERIALS
4030510 - GENERATION TRANSMISSION AND SWITCH GEAR (GTS) STUDY MATERIALS
EXAM DATE : 12.11.2024 (AFTERNOON EXAMS)
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