All Courses

Course conducted by
Rubel Hossen
Instructor
Electrical Technology
Semester : 5th & 7th
Daffodil Polytechnic Institute

Subject Overview : Diploma in engineering level students is required to acquire the knowledge and skills on the area of Testing and Maintenance of Electrical Equipment. It is one of the most important subject in respect to provide the students opportunities to acquire knowledge, skill and attitude in the area of testing and maintenance of electrical equipment with the special emphasizes on: Trouble shooting and Maintenance of electrical equipment, Faults findings and remedy the faults of Battery, DC Generators, DC motors, Faults findings and remedy the troubles of Transformers, Induction motors, Auto Star-Delta starter, Forward-Reverse ( 3 - Phase ) motor starter, Magnetic contact, Over Load Relay (OLR ), Test trip , 3 -Phase motor reverse rotation, Phase Sequence change, Alternator Faults findings and remedy the troubles of Synchronous motor and Circuit breaker, Power factor improvement unit (PFI), Solar system maintenance
Learning Outcome (Theory:

After Completing the subject, students will be able to:

1. Find the troubles of battery, DC generators and DC motor.

2. Describe the faults of single phase and three phase Transformer.

3. Outline the provable faults of single-phase induction motor.

4. Explain the faults of three phase induction motor

5. Explain the troubles of Alternator and Synchronous motors.

6. State the faults of Circuit breaker.

7. Illustrate the faults of Auto Star-Delta starter.

8. Explain the troubles of Overload Relay (OLR).

9. Discuss the troubles of power factor improvement unit (PFI).

10. State the faults of solar system.

Learning Outcome (Practical):

After undergoing the subject, students will be able to:

1. Perform the different test of storage Battery.

2. Detect the causes of voltage build up failure of DC generator and failure of running of DC motor.

3. Perform routine test of Single phase and Three phase distribution Transformer.

4. Recognize the faults of Single phase and Three phase Induction motors.

5. Detect the faults of Auto Star-Delta Stater and Overload relay.

6. Detect the common faults of Alternator.

7. Detect the troubles of Synchronous motor.

8. Identify common faults of High Voltage circuit Breaker.

9. Perform the testing of power factor improvement unit (PFI)

10. Detect the faults of solar system.

Course Conducted By
Md. Shafikul Islam (Milon)
Sr. Instructor and Head
Electrical Technology.
Daffodil Polytechnic Institute

AIMS

To provide the student with an opportunity to acquire knowledge, skills and attitude in the area of alternating current machines with special emphasis on :
• power transformer.
• auto transformer.
• 3-phase induction motor.


Outcome

 My Students will be able to understand principle of operation & construction of transformer, EMF equation, transformation ratio, losses, equivalent resistance, leakage reactance, tests, regulation, efficiency, three phase connection, auto transformer, parallel operation,
 My Students will be able to understand Three-phase induction motor: working principle, construction, magnetic field, torque, power stage, tests, starting and speed control.
 They will be able to Perform various test of Ac machine
 They will be able to operate and speed control of induction motor
 They can Identify efficiency of Transformer and motor

Course Conducted By
Md.Shafikul Islam (Milon)
Sr. Instructor and Department Head
Electrical Technology.
Daffodil Polytechnic Institute

Aim

To provide the student with an opportunity to acquire knowledge, skill and attitude in the area of planning and
estimating of electrical installation with special emphasis on:
• Planning and preparation of estimate for an electrical installation.
• Internal wiring and service connection.
• Installation of electrical machines.
• Electricity act / rules and safety practices..

Outcome

 Student will be able to know about Planning and estimating;
 They will be able to know how to use Measurement book,
 They will be able to understand importance of price sheet, catalogue and schedule of labor rate;
 They can calculate the Illumination;
 They will be able to chose Conductor size and can calculate current carrying capacity;
 They will be able to know Electricity Acts/Rules; Electrical codes;
 They will be able to perform Internal wiring installation;
 They can estimate for Distribution line;
 They can perform winding of electrical machine
 They will be able to Test electrical installation.

Rationale:
Construction process-I is the pre-requisite of Construction process-II. Civil Engineering diploma graduates have to supervise construction of various project works involving use of various construction work based on quality. It does have physical parts with which we can make an appropriate shelter, service for the client to use it. So, to know how to build a construction project, one must know about Concrete, its types, properties, use of concrete, brick masonry, block masonry, different type of partition wall, drywall etc. This set of knowledge and skill to gives confidence to understand and construct a project. The students should have requisite knowledge regarding characteristics, uses and availability of various building item of work for construction purposes. In addition, specifications of various materials should also be known (BNBC/PWD) for effective quality control. To perform above task, it is essential that students should have knowledge of various item of work like concrete, masonry, block masonry, partition wall etc., and their constructional details. Therefore, the subject of Construction Process-I is very important for Civil Engineering diploma Graduates.

AIMS
 To be able to understand the foundation and foundation engineering.
 To be able to understand the soil stabilization.
 To be able to understand and the bearing capacity of soil.
 To be able to understand the factors determining types of foundation.
 To be able to understand the foundation on sand and non-plastic soil, plastic soil, non-uniform soil,
rock.
 To be able to understand the excavating and bracing.
 To be able to understand the sheet pile wall, cofferdam and bulk head.
 To be able to understand the damages due to construction operations.

SHORT DESCRIPTION
Foundation and foundation engineering; Factors determining the types of foundation; Soil stabilization;
Bearing capacity of soil; Foundation on sand and non-plastic silt; Foundation on clay and plastic silt;
Foundation on non-uniform soil; Foundation on rock; Excavation and bracing; Sheet pile, cofferdam &
bulkhead; Damages due to construction operations.

OBJECTIVES:
At the end of course the students will be able to:
 apply relevant theory and practice of concrete construction and its quality control methods.
 perform skills for construction work and its supervision.
 understand the process, techniques and materials used in different types of masonry, Floor, Doors &
Windows.

SHORT DESCRIPTION
Concrete, Brick masonry, Foundation, Painting & varnishing, Insulation, Floor, Doors, Windows.

Course Conducted By

Md. Shafikul Islam (Milon)
Sr. Instructor and Head
Electrical Technology.
Daffodil Polytechnic Institute

Rubel Hossen
Instructor
Electrical Technology.
Telecommunication Technology
Semester : 5th
Daffodil Polytechnic Institute

Subject Overview : Diploma in Engineering Level students are required to acquire the knowledge and skill on the area of DC Machines with special emphasis of basic concept of Cell & Battery, Fuel cell, procedure of Battery charging and testing, DC generator and its characteristics, Losses and Efficiency of DC generator, DC motor, Speed control and voltage regulation of DC motor, Industrial Application of DC motor, electric traction. Electrical machines is a subject where a student will deal with various types of electrical machines which are employed in industries, power stations, domestic and commercial appliances etc. As such the knowledge of DC Machine the pre-requisite for these fields for effective discharge of their duties. These necessities of electrical engineering subjects in the curriculum of Diploma in engineering. After completion of this course student will be able to construct Cell & Battery, Perform Battery charging and testing, assemble and re-assemble of DC Generator, Operate DC generator and motor, develop lap and wave winding and speed control of DC motor. Have been given more emphasis on practical aspect rather than theory in teaching learning approach.
Learning Outcome (Theoretical:
After Completing the subject, students will be able to

Define cell, fuel cell and battery.

 Illustrate procedure of Battery charging and testing.

 Outline DC generator and its characteristics.

 Calculate Losses and Efficiency of DC generator.

 Describe DC motor.

 Enumerate Speed control and Regulation of DC motor

 Explain Industrial Application of DC motor.

 Mention electric traction.

Learning Outcome (Practical):

After undergoing the subject, students will be able to:

 Construct cell, fuel cell and battery.

 Perform Battery charging and testing.

 Assemble and de-assemble of varies parts of D.C. Generator

 Operate DC shunt, series and compound motors

 Develop Lap and wave winding.

 Execute speed control on DC Motors.

 Demonstrate Industrial Application of DC motor.

Course Conducted By
Md.Shafikul Islam (Milon)
Head of Department
Electrical Technology.
Daffodil Polytechnic Institute

Aim
To provide the student with an opportunity to acquire knowledge, skill, and attitude in the area of planning and
estimating electrical installation with special emphasis on:
• Planning and preparation of estimate for an electrical installation.
• Internal wiring and service connection.
• Installation of electrical machines.
• Electricity act/rules and safety practices.

Outcome
Students will be able to know about Planning and estimating;
They will be able to know how to use the Measurement book,
They will be able to understand the importance of price sheet, catalog, and schedule of labor rate;
They can calculate the Illumination;
They will be able to choose Conductor size and can calculate the current carrying capacity;
They will be able to know Electricity Acts/Rules; Electrical codes.
They will be able to perform Internal wiring installation;
They can estimate for Distribution line;
They can perform winding of electrical machine
They will be able to Test the electrical installation.

1. Rationale: Hydrology is an extremely important field of study, dealing with one of the most valuable resources on Earth water. All aspects of the Earth's available water are studied by experts from many disciplines, from geologists to civil engineers, to obtain the information needed to manage this vital resource. Thus, considering the importance above mentioned, this discipline has been included in the diploma level as a subject to be graduate in the sector. The syllabus includes concept of engineering hydrology, hydrology cycle, hydrometeorology, introduction to precipitation, measurement of precipitation, analysis and interpretation of rainfall data, stream flow measurement, evaporation and evapotranspiration, infiltration, rainfall and runoff relationship, hydrograph analysis and flood routing modules/contents, blue economy and Delta plan in Bangladesh to be studied in the teaching learning process.

2. Learning outcome (Theoretical): After undergoing the subject, students will be able to

 Describe origin, composition, classification and properties of soil.
 State plasticity characteristics of soil.
 Define hydraulic properties of soil.
 Describe consolidation and compaction characteristics of soil.
 Define lateral earth pressure of soil.
 Describe subsurface investigation and method of sample collection.
 Calculate the bearing capacity of soil.

3. Learning outcome (Practical): After undergoing the subject, students will be able to

 Determine the water content of soil by oven drying method.
 Determine the specific gravity of soil by Pycnometer method.
 Determine the particle size of soil by sieve analysis method.
 Determine the liquid limit and plastic limit of soil.
 Perform the co-efficient of permeability of soil by constant head test.
 Determine the bearing capacity of soil from Standard Penetration Test (SPT).
 Perform standard proctor test of the soil.
 Perform unconfined compression test of the soil.
 Perform unit weight of soil by core cutter method.
 Perform unit weight of soil by sand replacement method.