IX Standard - Dept of Technical Education

Transcription

Course Title: Elements of Mechanical & Electrical Engineering - 1
Periods (L:T:P) : 4:0:0 :: L-Lecture, T-Tutorial, P-Practical.
Course: JTS (IX std )
Total Contact Periods: 112
PART-A
Elements of Mechanical Engineering
Prerequisites: Knowledge of Primary School Science and Mathematics
Course Objectives: Understand the basics in Mechanical and Electrical Engineering
Course Outcomes: At the end of the course, the students will be able to
1. Know the Elements of mechanical Transmission of Power
2. Understand the formation of steam, its properties and working principle of steam Boiler
And Steam Turbine
3. Know the working principle of Hydraulic Turbines and Pumps
4. Understand the concept of Electricity, work, power, energy, Solve simple problems on
Ohm’s law,
5. Know the concepts of magnetism and electromagnetism
6. Appreciate the semi-conductor in Electronics
Unit-1
Transmission of Power: Know the Classification of power Transmission systems, understand
Open Belt drive, Crossed Belt drive, V – Belt Drive, stepped cone pulley, explain velocity ratio
of belt drive with simple problems, understand the chain drive, advantage & disadvantage of
chain drive, explain Gear drive, types of gear drives, advantage & disadvantage of gear drive.
(15 periods)
Unit-2
Steam Formation: Understand the Formation of steam, define wet steam, dryness fraction,
dry saturated steam, superheated steam and know the advantages of super heated steam.
(08 periods)
Steam Boilers and Steam Turbines: Know the classification of Boiler, Compare water tube
boiler & fire tube boiler, explain the working of Simple vertical boiler. List the functions of
boiler mountings & accessories , know the Classification of steam Turbines, Compare impulse &
reaction turbine.
(15 periods)
Directorate Of Technical Education
Karnataka State
Page 1
Unit-3
Hydraulic Turbines: Classification of Hydraulic Turbines, Comparison between reaction and
impulse turbine, working principle of Pelton Wheel,
(10 periods)
Hydraulic Pumps: Classification of hydraulic pumps, working principle of Reciprocating
pump, Centrifugal pump.
(08 periods)
PART-B
Elements of Electrical Engineering
Unit -1
Concept of Electricity: Introduction to electricity, advantages and applications of electrical
energy. Sources of electrical energy.
Concept of electrical current, its SI unit. Definition of e.m.f, potential difference, its unit.
Instruments used for measurement of current and voltage.
A practical electrical circuit diagram consisting of source, fuse, switch and load.
Definition of conductor and insulator with examples
(15 periods)
Electrical Resistance and Circuits: Definition of resistance and its SI unit, laws of resistance,
Ohm’s law – applications, limitations with simple problems. Determination of equivalent
resistance for resistances connected in series and parallel with simple problems.
(12periods)
Unit -2
Work, Power and Energy: Definitions of work, Electric power, Electrical energy and their SI
units with simple problems. Relationship between Horse-Power and Kilo-Watt.
(10periods)
Magnetism and Electromagnetism: Introduction to magnetism, permanent-magnet and
electro-magnet with uses. Definitions of magnetic field, magnetic flux, flux density, m.m.f,
reluctance and their SI units. Determination of direction of magnetic field by right hand thumb
rule and cork-screw rule.
(12 periods)
Unit -3
Electronics: semi-conductor- Definition, types- Intrinsic and Extrinsic semi-conductors.
Concept of doping. P-type and N-type materials,
(7 periods)
Karnataka State
Page 2
References:
1.K.R.Gopalakrishna“Mechanical Engineering Science” Subhas Publications, 2010.
2.Dr.R.K.Hegde,”Elements of Mechanical Engineering”, Subhas Publications, 2014
3. Bannapurmath V.S.yaliwal.”Basic Machincal Engneering “,Vikas publishing -2015
4. Principles of Electrical Engineering and Electronics – V.K.Mehta, Rohit Mehta.
(S.Chand & Co. Pvt. Ltd.)
5. ABC of Electrical Engineering.- B.L. Thareja & A.K. Thereja (S.Chand & Co. Pvt. Ltd.)
6. Elements of Electrical Engg for JTS students
Scheme of Examination
Sl No
Periods
Questions to be
set for
(10marks )
Unit Name
1
2
Transmission of Power
Steam Formation
15
08
3
Steam Boilers and Steam Turbines
15
10
10
10
4
Hydraulic Turbines
10
10
5
08
15
10
6
Hydraulic Pumps:
Concept of Electricity
7
Electrical resistance and circuits
12
10
8
Work, Power and Energy
10
10
9
Magnetism & Electromagnetism
12
10
10
Electronics
7
10
112
100
TOTAL
10
Karnataka State
Page 3
Model Question Paper
Elements of Mechanical & Electrical Engineering - 1
Part-A
Max mark-50
Note: Answer all Questions
1a).Define transmission of power
02
b).Name the different types of transmission of power
04
c).With a neat sketch explains open belt drive & Cross belt drive 04
2 a).Define Dryness fraction
02
b).Differentiate between wet steam & dry saturating steam
04
c).List the properties of steam
04
3 a) Mention the application of boiler
02
b).write the Classification of boiler,
04
c).Draw a neat sketch of simple vertical boiler label the parts
04
OR
3 a).List the boiler accessories
02
b).What are the differences between water tube boiler & fire tube boiler 04
c).What is the function of water level indicator & fusible plug
04
4 a) Mention the application steam turbine
02
b).Differentiate between impulse turbine & reaction turbine
04
c) What is the function of economiser & super heater
04
5 a) Mention the application water turbine
02
b).write the Classification of water turbine
04
c).Draw the neat sketch of pelton wheel & label the parts
04
Karnataka State
Page 4
Part-B
Max mark-50
Note: Answer all the questions.
6. a. Define conductor and give an example.
b. State any four applications of electrical energy.
c. Define and mention the SI unit of i) Electrical Current ii) e.m.f.
2
4
4
7. a. Define and mention the SI unit of resistance.
2
b. State any four advantages of electrical energy over other forms of energy.
4
c. Draw a practical circuit consisting of source, load, switch and protective device. 4
8. a. Define electrical power and mention their unit.
2
b. State Ohm’s law and write the necessary equations.
4
c. Three resistances of 4 Ω, 6 Ω, and 10 Ω are connected in series across a supply of 100
volts, find i) equivalent resistance ii) Total current in the circuit
4
9. a. Convert Horsepower into watt.
2
b. A 100 watt lamp is used for 6 hrs a day, find i) Energy consumed per month, ii) cost of
energy if each unit costs Rs.4.00
4
c. Define with SI units. i) Magnetic flux ii) flux density
4
10. a. Define semi-conductor and give example.
b. Define a magnet and write the properties of magnet.
c. Name the types of magnets and mention its uses.
2
4
4
OR
a. Define magneto motive force and write its unit.
2
b. State four effects of electric current with example each.
4
c. Determine the equivalent of three resistances R1, R2, and R3 when connected in series
across a supply of V volts.
4
Karnataka State
Page 5
Model Question Bank
Elements of Mechanical & Electrical Engineering - 1
PART A
1. Draw the neat sketch of stepped cone pulley and label its parts
2 Mention the uses of stepped cone pulley
5. Define Velocity Ratio Belt drive
6. Mention the types of chain drive
7. Write the Advantages & Disadvantages of chain drive
8. List the types of gear
9. What is gear drive
10. What are the advantage & disadvantage of gear drive?
11. Draw the neat sketch spur gear
12. List the advantages super heated steam
13 define dryness fraction of steam
14. Define wet steam, dry steam and superheated steam
15. Write the comparison between fire tube boiler & water tube boiler
16. List the boiler accessories
17. List the boiler mountings
18. Name any two boiler mountings & mention their uses.
19 write the classification of steam turbine
20. Draw a neat sketch of pelton wheel turbine
Karnataka State
Page 6
PART- B
1.
2.
3.
4.
5.
6.
7.
8.
9.
Define electricity.
State any five applications of electrical energy.
State five advantages of electrical energy over other forms of energy.
Name the sources of electrical energy.
Write five effects of electrical current with an example each.
Define and mention the SI units of i) Electrical Current. ii ) e.m.f
Define and mention the SI units of potential difference and resistance.
Mention the meters used for the measurement of current and voltage.
Draw a practical circuit consisting of source, load, switch, protective device, voltmeter
and ammeter.
10. Define conductor and insulator with examples.
11. State the difference between conductor and insulator.
12. Define and mention the SI units of resistance.
13. State the laws of resistance.
14. State the factors on which the resistance of the conductor depends.
15. State Ohm’s Law and write the necessary equations.
16. State Ohm’s law and mention the limitations.
17. Mention the applications of Ohm’s law.
18. Determine the equivalent resistance of three resistances R1, R2 and R3 when connected
in series across a supply of V volts.
19. Determine the equivalent resistance of three resistances R1, R2 and R3 when connected
in parallel across a supply of V volts.
20. Three resistances of 4, 6 and 10 ohms are connected in series across a supply of 100V
find, i. Effective resistance of circuit. ii. Total current in the circuit. iii. Voltage drop in
across each resistance.
21. Three resistances of 4, 6 and 12 ohms are connected in parallel across a supply of 24V
find, i. Effective resistance of circuit. ii. Total current in the circuit. iii. Current through
each resistance.
22. Define i) Work. ii) Electric power. iii) Electrical energy and mention their units.
23. Define Electric power and write the three equations.
24. An electric stove takes a current of 5 Amps when connected to a 230 V supply, find the
power taken by the stove.
25. Find the current taken by an electric bulb of 100Watts when connected to a 200 Volts
supply.
26. A 100 Watt lamp is used for 6 hours a day, find i) energy consumed per month, ii) cost
of energy, if each unit costs Rs.4.00
27. A house consists of two bulbs of 60 W each and two bulbs 40 Watts each, if they are
used for 4 hours a day, find monthly consumption charges at the rate of Rs.3.00 per
unit.
28. Convert Horse power into Watts.
29. Define a magnet and write the properties of the magnet.
30. Name the types of magnet and mention its uses.
31. Define with SI Units, i) magnetic flux ii) magnetic field.
32. Define with SI Units, i) flux density ii) magneto motive force iii) reluctance.
33. Define Semi-conductor and give examples.
34. Explain doping in semi-conductors
35. Distinguish between intrinsic and extrinsic semi-conductors
Karnataka State
Page 7
Course Title: Engineering Graphics - 1
periods (L:T:P) : 0:1:2 :: L-Lecture, T-Tutorial, P- Total Contact Periods: 84
Practical.
.
Prerequisites: knowledge of Fundamentals Engineering Drawing – 1 & 2
Course Objectives: Developing Engineering Drawing skills.
1. Understand the concept of Orthographic Projection.
2. Understand the Projection of Points, Lines and Planes
Unit-1
Orthographic Projection: Introduction to orthographic projection, explain principle views &
principle planes, four quadrant & system of projection, first angle projection, third angle
projection, difference between first angle & third angle projection and know the symbol of
projection,
(08 Periods)
Projection of Points: Explain Location of point, conventional representation of point,
projection of point in the first, second, third, & fourth quadrant.
(10 Periods)
Unit-2
Projection of Line: Explain Projection of a line parallel to H.P & V.P, Projection of a line
parallel to H.P & perpendicular to V.P, Projection of a line parallel to V.P & perpendicular to
H.P, Projection of a line parallel to V.P & inclined to H.P, Projection of a line parallel to H.P &
inclined to V.P. (One problem in each condition).
(25 Periods)
Projection of Plane: Explain Projection of a plane parallel to one of the principle plane and
perpendicular to other two, Projection of a plane surface perpendicular to one of the principle
plane and inclined to other, (Triangular, Square, Pentagonal, Hexagonal and Circular Planes
should be considered. (One problem in each category).
(25 Periods)
Unit-3
Computer Practice: Practice Unit 2 in computer using appropriate software
(16 Periods)
Note: Students should do minimum of 10 drawing sheets and submit it for evaluation
References:
1. K.R.Gopalakrishna”Engineering Drawing” Subhas Publications, 2010.
2. Dr.R.K.Hegde,”Engineering Drawing”, Subhas Publications, 2014
3. Shankar Prasad Dey,”Mechanical Engineering Drawing”, Vikas Publishing-2015
Karnataka State
Page 8
Scheme of valuation
Sl
No
Contents
1
2
3
Orthographic Projection
Projection of points
Projection of line
08
10
25
05
05
20
4
Projection of planes
25
20
5
Computer practice
TOTAL
16
00
84
50
Periods Questions to be
set for
(10marks )
Karnataka State
Page 9
Engineering Graphics - 1
Max marks: 50
Q.no1. a. Write the symbol of first angle & third angle projection
04
b. Name the different principle views of planes
04
c,. What is orthographic projection
02
Q.no.2 a. Show the location of point touching all the three principal planes
04
b. Draw the principle views of point laying 50mm below V.P & 40mm in front of
H.P
04
c. Draw the principle views of point laying 50mm below H.P & 40mm in front of
V.P
04
Q.no.3 .Draw the principle views of a line 70mm long when it is placed parallel to HP &
VP One of the end is 60mm above HP 50mm in front of VP.
10
Qno.4. A line 80mm long is perpendicular to VP & parallel to HP the end nearer to VP is
20mm above HP & 25mm in front of VP draw its projections.
10
Qno.5.A regular hexagonal of lamina 35mm side rests on HP, when its plane vertical &
Inclined at 450 to VP .Draw the front & top views one of its side perpendicular to
HP
10
OR
Circular lamina 50 mm diameters rest in HP such that the surface of lamina is
Inclined at 300 to HP. Draw its projections
Karnataka State
Page 10
Model Question Bank
Engineering Graphics – 1
1. What is first angle & third angle projection, write its symbol
2. Difference between first angle & third angle projection
3. A point is 40mm in front of VP & 50mm above HP .Draw the principle of view of
point in first quadrant
4. A point P is 30mm above HP & 50mm behind VP .draw the principle of view of
point is second quadrant
5. A point P is 40mm behind VP & 60mm below HP .draw the principle view of
the point in third quadrant
6. Draw the principle view of point P 60mm below HP & 50mm in front of VP in
the fourth quadrant
7. Draw the line of projection of line 40 mm lengths parallel to HP & parallel to
VP.
8. Draw the projection of line 40mm length is parallel to HP & perpendicular to
VP
9. Draw projection of line of 40mm length is parallel to VP & perpendicular to HP
10. Draw projection of line 40mm length the line is parallel to VP & inclined 45 0 to
HP
11. Draw the projection of line 40 mm lengths. a line is parallel to HP & inclined 300
to VP
12. Give the definition of plane surface
13. What are the position of plane surface & what it is true shape of plane surface
14. What are the general rules for position of plane surface in the projection?
15. A regular pentagon lamina 30mm side rests on HP & with its base vertical &
inclined at 450 to VP ,draw the top & front views when one of its sides is
perpendicular to HP
16. A equilateral triangular lamina of 30mm sides lies with one its edges on HP
such that the surface of the lamina is inclined to the HP at 60 0 draw the
projections .
17. A Circular lamina of 50mm diameter rests on HP such that a surface of the
lamina is inclined at 300 HP ,draw the projections
Karnataka State
Page 11
Course Title: Work Shop Fitting-1
Course: JTS (IX std)
periods (L:T:P) : 0:2:4 :: L-Lecture, T-Tutorial, P- Total Contact Periods: 168
Practical.
Prerequisites: Knowledge of Basic Work Shop Fitting-1
Course Objectives: Understand the Basic Fitting Operations
1 Know the safety precaution in the Fitting workshop
2 Understand different tools & equipments
3 Practice marking, punching, Cutting & Filing operations.
Fitting Practices:
1 Know the safety precaution in the Fitting workshop
2 Demonstration and use of different Fitting Tools to carry out Fitting operation.
3 Marking & Punching as per given sketch
4 Cutting, Filing, drilling and Finishing as per sketch
Note: Students should do minimum of 04 models and submit it for evaluation
References:
1. Ramesh Babu.V., “Engineering Practices Laboratory Manual”, VRB Publishers Private
Limited, Chennai, Revised Edition, 2013 – 2014.
2. Jeyachandran.K., Natarajan.S. and Balasubramanian.S., “A Primer on Engineering Practices
Laboratory”, Anuradha Publications, 2007.
3. Bawa.H.S., “Workshop Practice”, Tata McGraw Hill Publishing Company Limited, 2007.
.
Sl. no.
1
2
3
4
5
6
Performance
Listing of tools and operations.
Marking & Punching
Performing of basic operations.
Finishing
Viva
Practical Record
Total
Max. Marks
05
05
20
10
05
05
50
Karnataka State
Page 12
Model Question Bank
Work Shop Fitting – 1
Marks: 50
1) Prepare a Model as per the given sketch
Note: Only one Part (Male or Female) shown in the sketch has to be prepared by a
Individual student in the Examination
Karnataka State
Page 13
List of Equipment (Fitting Shop)
Sl. No
List of Equipment(Fitting Shop)
Numbers Required as per
norms
20
1.
Flat file 14″ rough bastard file
2.
Try square 6″
20
Triangular file 10″ rough
20
4.
Half round file 10″ rough
20
5.
Hack saw frame -solid 12″
20
6.
Center punch
20
7.
Ball peen hammer 11/2 Lbs
20
8.
Flat chisel 6″
20
9.
Smooth file 10″ flat
20
10.
Bench vice 8″
30
Leg vice 6″
10
12.
Power hack saw
01
13.
Bench grinding
01
14.
Bench drilling machine up to 12mm cap
01
15.
Drill bit up to 12mm straight shank
04
16.
Tap set and die set up to 1″
01
17.
Vernier calliper
10
18.
Spring divider
20
19.
Steel scale
20
20.
Vernier height gauge
01
21.
Surface plate 2x3 feet
02
22.
Number punch
01
23.
Anvil
05
24.
V block
02
3.
11.
Karnataka State
Page 14
Course Title: Work Shop Carpentry-1
Periods (L:T:P) : 0:2:4 :: L-Lecture, T-Tutorial, P- Total Contact Periods: 168
Practical.
Prerequisites: Basic Work shop Carpentry-1
Course Objectives: Understand the Basic Carpentry Operations
1. Know the safety precaution in the Carpentry workshop
2. Know the different types of woods and its defects
3. Understand and use various tools in carpentry
4. Practice marking, Sawing, Planning, Cutting & joints like Dovetail halving joint, mortise &
Tenon joint
Carpentry Practices:
1 Understand the different types of woods
2 Know the various defects in wood
3 Study the joints in roofs, doors, windows and furniture available in Carpentry workshop
4 Know and use different tools to carry out wood working operations
5 Practice marking, Sawing, Planning & Cutting operations
6 Practice on Wood working joints like Dovetail halving joint, mortise & Tenon joint
Note Students should do minimum of 04 models and submit it for evaluation
References
Scheme of valuation
Sl. no.
1
2
3
4
5
6
Performance
Marking & Punching
Finishing
Viva
Practical Record
Total
Max. Marks
05
05
20
10
05
05
50
Karnataka State
Page 15
Work Shop Carpentry - 1
Time: 3 hours
Marks: 25
Note: Only one Part (Male or Female) shown in the sketch has to be prepared by a
Individual Student in the Examination
Karnataka State
Page 16
List of equipment & Tools (Carpentry Shop)
Sl.
No
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
List of equipment & Tools (Carpentry Shop)
Numbers Required
as per norms
Carpenter bench vice
20
G or C clamp 6″
20
Marking gauge
20
Try square 19mmx4″
20
Wooden mallet
20
Firmer chisel 2″
20
Firmer chisel 3/4″
20
Mortise chisel 1/2″
20
Metal jack plane 9″
20
Bevelled square 6″
20
Hand saw or cross cut saw
20
Steel scale 12″
20
.
Karnataka State
Page 17
Course Title: Work Shop ( Machine shop-1)
periods (L:T:P) : 0:2:4:: L-Lecture, T-Tutorial, P- Total Contact periods: 168
Practical.
Pre-requisites: Knowledge of Machine Tools
Course Objectives: To understand the Constructional features of Lathe, its accessories and
Operations
1. Understand the Constructional features of Lathe, its accessories And Operations
2. Work on Lathe and perform Plane Turning and Step Turning
Lathe Practices:
1
2
3
3.
4.
Study the Constructional features of Lathe and its accessories
Know and use different tools to carry out turning operations
Perform Facing operation as per given sketch
Perform plain turning operation as per given sketch
Perform step turning operation as per given sketch
References
.
Sl. no.
1
3
4
5
6
Performance
Finishing
Viva
Practical Record
Total
Max. Marks
05
25
10
05
05
50
Karnataka State
Page 18
List of Tools Required
1.
2.
3.
4.
5.
6.
7.
Canter Lathe With attachments
Cutting Tools Set
Power hacksaw
Surface Grinding Machine
Cylindrical Grinding Machine
Vanier Callipers
Outside Calliper
.
20
20
01
01
01
20
20
Karnataka State
Page 19
Work Shop (Machine shop-1)
Time: 3 hours
Marks: 50
1. Prepare a model involving Facing , Plain Turning and Step Turning as per given sketch,
Karnataka State
Page 20
Course Title: Electrical and Electronics Laboratory-1
Periods (L:T:P) : 0:2:4 :: L-Lecture, T-Tutorial, P- Total Contact periods: 168
Practical.
Pre-requisites: Knowledge basic Electrical and Electronics
Course Objective:
The objective of the laboratory course is to identify the various tools, wires, electrical fittings,
measuring instruments, resistors and diode. Wire-up various Electrical wiring circuits, prepare
wiring joints and measurement of electrical parameters like voltage, current, resistance, power
and electrical energy.
Course Outcomes: After completion of the course the student should be able to
i.
ii.
iii.
iv.
v.
Identify different types of wiring tools and different types of wires.
Connect different electrical meters.
Prepare different types of joints.
Rig-up various wiring circuits and test the same.
Understand Ohm’s Law.
List of Graded Exercises:
1. Study and identification of different types of insulated wires conductors insulators,
electrical fittings and safety devices.
2. Identification and use of different types of tools in wiring system, study of wire gauge.
3. Identification, connection and uses of ammeter, voltmeter, wattmeter, energy meter and
speedometer.
4. Preparation of a straight joint.
5. Preparation of a T-joint.
6. Preparation of a Western-union joint.
7. Wire-up a circuit in a PVC Conduit system to control a lamp from a single point.
8. Wire-up a circuit to control two lamps in series in PVC conduit system.
9. Wire-up a circuit to control two lamps in parallel in PVC conduit system.
10. Wire-up circuit to control two lamps in series and a lamp in parallel in PVC conduit
system.
11. Wire-up a circuit to control two lamps independently.
12. Construct a suitable circuit to verify Ohm’s Law.
13. Construct a circuit to find the resistance of an unknown resistance using ammeter and
voltmeter.
14. Construct a circuit to find the d.c. power using ammeter and voltmeter.
15. Construct a circuit to measure electrical energy using an energy meter.
16. Identification of resistor value using colour code.
References:
a. Experiments in Basic Electrical Engg.- S.K. Bhattacharya.
Karnataka State
Page 21
b. Electrical Experiments- S.L. Uppal.
Scheme of evaluation
Sl.No.
1.
2.
3.
4.
5.
Content
Practical Record
Circuit diagram and Procedure
Conduction and result
Wire Joints
Viva-voce
Total
Marks
05
10
15
10
10
50
Karnataka State
Page 22
Model Question Bank
Electrical and Electronics Laboratory-1
1.
2.
3.
4.
5.
6.
7.
8.
Prepare a straight joint by using PVC 3/20 copper wire.
Prepare a T - joint by using PVC 7/20 copper wire.
Prepare a Western union joint by using bare conductors.
Rig-up and test the wiring of a lamp controlled from one place.
Construct a circuit to control two lamps in series.
Conduct an experiment to control two lamps in parallel from one point.
Rig-up and test the wiring circuit to control two lamps independently.
Wire-up a circuit to control two lamps in series and one lamp in parallel from one
place.
9. Conduct an experiment to verify Ohm’s Law.
10. Conduct an experiment to find the resistance of a given unknown resistance.
11. Conduct an experiment to find the dc power by using ammeter and voltmeter.
12. Conduct an experiment to measure single-phase energy in KWh by using single-phase
energy meter.
Karnataka State
Page 23

IX Standard - Dept of Technical Education

Transcription

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X Standard - Dept of Technical Education