The document summarizes Nima Dorji's presentation on his summer internship at Chumey Technical Training Institute in Bhutan. It includes an overview of the tasks completed, which were studying tools/equipment, designing and fabricating roof trusses, presenting on protective equipment, designing and making window grills, and fabricating door frames. It also provides background on the institute and details on the processes, materials, and costs for selected tasks.

1. Presentation
On
Summer Internship at Chumey
Technical Training Institute
Bumthang : Bhutan
Presented to:
Mr. Rajesh. M
Assistant Prof.
Mechanical Department.
Presented by:
Mr. Nima Dorji
Rollno. : 120106807
4th year M.E
(section-B)

2. Overview:
1. Introduction to the company
2. Task-1: Study on tools, equipments, training materials
and safety gears
3. Task-2: Design & Fabrication of roof trusses
4. Task-3: Presentation on Personnel Protective Equipments
(PPE)
5. Task-4: Design & Fabrication of window grills
6. Task-5: Fabrication of door frames

3. Introduction
Brief History
 The Chumey Technical Training Institute was established
at Chumey, Bumthang in December 2006.
 Initially the institute was named as Chumey Vocational
Training Institute
 In 2010, it was renamed as Chumey Institute of Civil
Engineering (CICE)
 Again in the year 2012 the Institute was renamed as
Technical Training Institute-Chumey (TTIC).
 The institute is located 25 Kilometers away from
Bumthang town situated along the Bumthang-Thimphu
high way.

4. .
Fig 1.1: Over view of Technical Training Institute
Chumey

5. Vision
An institute widely recognized for achieving
the excellence in training skilled professionals
and an exciting place for skills training in the
field of construction.
Mission
To produce high competitive work force and
skill work force that is versatile, competent
and prepared for modern technology.

6. Objectives
 Provide skilled human resource needs of the country
particularly in the construction sector.
 Enhance employability of school leavers by providing
demand based training and reduce unemployment of
Bhutanese job seekers.
 Motivate Bhutanese Job seekers to take up technical and
vocational training.

7. Program structure
 Currently, there are four types of Certificate level
courses offered:
1. Carpentry
2. Masonry
3. Plumbing
4. Welding
 All the above mentioned trade follows Competency
Based Training (CBT ) systems. Certificate course
for national certificate (NC) level I &II.

8. Fig 1.2: Organizational chart

9. Task-1: Study on tools, equipments, training
materials and safety gears
Equipments:
1. Arc welding machines
2. Oxy-acetylene sets
3. Power saw
4. Drilling machines
5. Hand drilling machines
6. Grinding machines
7. Semi automated gas cutting machines

10. Tools:
1. Files
2. Chisels
3. Tongs
4. Pliers
5. Hammers
6. Pockers
7. Center punch
8. Anvil

11. Training materials:
1. Angle iron
2. Steel tubular pipe
3. Steel square pipe
4. M.s flat
5. M.s strip
6. M.s bar
7. M.s plate
8. Wire mesh
9. M.s welding electrode
10. Brass electrode
11. Bronze electrode

12. Safety gears:
1. Hand glove
2. Goggles
3. Helmets
4. Safety shoes
5. Apron
6. Ear muffs
7. First AID box

13. Equipments

14. Tools used for welding and fabrications

15. Training materials

16. Safety gears used for welding and fabrication

17. Task-2: Design & Fabrication of roof trusses
8.0000
4.1607
1.2570
0.5808
0.2242
0.9174
1.0743
KING POST ROOF
TRUSS

18. Raw materials and equipment used
1. M.s Pipe
2. Electrode
3. Grinding machine
4. Welding machine
5. Try square
6. Thread
7. Power saw
8. Sand paper
9. Measuring tap

19. Process of fabrication
1. Measure the steel tubular pipes to the given
dimensions of the drawing.
2. Cut the tubular pipe as per the measurement
3. Grind the sharp edge of pipes by hand grinding
machine.
4. Edge preparation
5. Set up the welding machines to required voltage
current.
6. Welds the job i.e. roof truss to the require structure
prescribed in the drawing.
7. Remove the welding spark chips and dirt by sand paper
or ambry paper.
8. Paint the trusses with red oxide and make it dry and
repeat the procedure for second coating.

21. Estimation and costing
Raw material used is M.s Pipe of outer dia 50 mm
Tie beam= 1 x 20 m = 20 m
Top chord = 2 x 11.18 = 22.36 m
King post = 1 x 5= 5 m
Vertical studs = 2 x 3 m = 6 m
= 2 x 1.5 m = 3 m
Total length = 20 + 22.36 + 5 + 6 + 3 = 56.36 m
Consider Wastage = 5%
Therefore, wastage = 5% of 56.36 m = 2.818 m
Therefore total length = 56.36 + 2.818 = 59.178 m
As per steel standard, for outer dia. of 50 mm, the weight is
4.07 kg/m
Therefore weight = 59.178 m x 4.07 kg/m = 240.85 kg

22. Raw material used is M.s pipe of dia 48mm
Inclined member = 2 x 6 m = 12 m
= 2 x 3 m = 6 m
Total length = 12 + 6 = 18 m
Wastage= 5%
Therefore, 5% of 18 m = 0.9 m
Total length = 18 m + 0.9 m = 18.9 m
As per standard weight for outer dia. 48 is 3.61 kg/m
Weight = 18.9 x 3.61= 68.229 kg
Total weight = 240.85 + 68.229 = 309.079 kg
Rate for ms pipe is Rs. 69/kg
Therefore, material cost for one truss = 309.079 x 69 = Nu.21326.451
Therefore, cost of 58 trusses = 58 x 21326.451 = Nu.1236934.158

23. Task-3: Presentation on personal Protective
Equipments (PPE).
Overview of Presentation:
1. Introduction
2. Eye & Face Protection
3. Head Protection
4. Hand Protection
5. Foot Protection
6. Body Protection

24. FIG : shows presentation on personal protective equipment

25. Introduction
1. Occupational Health & Safety
Administration established 29 CFR
1910.132-138 the Personal Protective
Equipment Standard
2. Briefly stated, this standard requires that
employers must provide at no cost to their
employees PPE when such equipment is
necessary to protect employees from job
related injuries, illnesses and fatalities

26. Protecting Employees from Workplace Hazards
1. Employers must protect employees from workplace
hazards and dangerous work procedures that can
cause injury, illness and fatalities.
2. Employers must:
o Use all feasible engineering and work practice
controls to eliminate and reduce hazards
o Then use appropriate PPE if these controls do not
eliminate hazards
o Remember: PPE is the last control

27. Employer Responsibilities
Employers are required to conduct an assessment to
determine the various physical hazards that may be
present in their work areas.
The health hazards include:
1. Types of chemicals hazards
2. Sources of biological hazards
3. Sources of nuclear radiation

28. Employee Responsibilities
1. You are responsible for attending all PPE training
sessions
2. You are responsible for wearing your assigned PPE
3. Follow ALL Warnings and Precautions
4. Listen and Follow Directions
5. Report any and ALL unsafe conditions you may find
in your work area to your supervisor or safety
manager.

29. Eye and face protection
1. Object Striking Eyes
o Dusts, Powders, Fumes, and Mists
2. Contact with Chemicals
o Toxic Gases, Vapors, and Liquids
3. Swinging Objects
o winging chains, cables and ropes;
o tools that are thrown or fall;
4. Thermal and Radiation Hazards
o Operations such as welding, metal cutting, and working around
furnaces can expose your eyes to heat, glare, ultraviolet, and
infrared radiation

30. Elimination or Control of Hazards
1. Machine Guards
2. Work Area Barriers
3. Ventilation
4. Lighting
5. Safe Work Practices
Types of Eye and Face Personal Protective
Equipment
1. Goggles
2. Face Shields
3. Welding Helmets

31. Head Protection
Potential Incidences of Head Hazards
1. Impact
o Falling or flying objects
o falling or walking into hard objects
2. Electric Shock
o Live exposed electric wires
o Injuries include electrical shocks and burns
3. Drips
o Toxic liquids such as acids, caustics, and molten
metal’s can irritate and burn the head.

32. Types of Head PPE
Hard hats
o A rigid shell that resists and deflects blows to the
head
o A suspension system inside the hat that acts as a
shock absorber
o Some hats serve as an insulator against electrical
shocks
o Shields your scalp, face, neck, and
shoulders against splashes, spills, and drips
o Some hard hats can be modified so you can add
face shields, goggles, hoods, or hearing protection
to them

33. Proper use and care of hard hat
 Always wear your hard hat while you are working in
areas where there are potential head hazards
 Inspect the shell of your hard hat for cracks, gouges,
and dents. Inspect the suspension system for frayed or
broken straps.
 If your hard hat needs to be repaired, have it
repaired immediately or ask your employer for a
new one
 Never carry personal belongings such as cigarettes,
lighters, or pens in your hard hat

34. Task-4: Design & Fabrication of window grills
Processes:
 Measure the MS strip to the given dimensions of the drawing.
 Cut the MS strip as per the measurement
 Grind the sharp edge of strip by hand grinding machine.
 Edge preparation
 Set up the welding machines to required voltage current.
 Welds the job i.e. window grills to the require structure
prescribed in the drawing.
 Remove the welding spark chips and dirt by sand paper or
ambry paper.
 Paint the grills with red oxide and make it dry and repeat the
procedure for second coating.
 Paint the grills by silver paint.

35. Equipments and raw material used:
 M.S strip
 M.S electrode (d=2.5mm)
 Welding machine
 Power saw
 Hand grinding machine
Estimation and Costing:
Raw Materials: M.s strip of width x thickness = 15 mm
x 3 mm
The total length = 4 x 2 m = 8 m
=4 x 1 m = 4 m

36. Therefore, total length of strip required for one grill = 8 + 4 =12
m
The volume = L x b x t = 12 x 0.015 x 0.003 = 0.00054 m3
Density of Mild Steel = 7,861.093 kg/m3
Therefore, weight of one grill = volume x Density
= 0.00054 x 7861.093
= 4.24 kg
Therefore, weight of 52 grills = 52 x 4.24 = 220.48 kg
Consider wastage = 5% of 220.48 = 11.024 kg
Therefore, total weight of strips required
=220.48 + 11.024 = 231.504kg
The rate of strip = Nu. 69/kg
The total material cost for grills = 231.504 x 69 = Nu. 15973.77

38. Task-5: Fabrication of door frames
Process of fabrication:
1. Measure the MS angle to the given dimensions of the
drawing.
2. Cut the MS angle as per the measurement
3. Grind the sharp edge of angle by hand grinding machine.
4. Edge preparation
5. Set up the welding machines to required voltage current.
6. Welds the job i.e. door frame to the require structure
prescribed in the drawing.
7. Remove the welding spark chips and dirt by sand paper or
ambry paper.
8. Paint the door frame with red oxide and make it dry and
repeat the procedure for second coating.
9. Paint the door frame by silver paint.

39. Raw Materials and equipment used:
1. M.S Angle iron 50x50x5mm
2. M.S electrode (d=2.5mm)
3. Welding machine
4. Power saw
5. Hand grinding machine
Estimation and Costing:
Raw Materials: M.S angle iron = 50 x 50 x 5 mm
The total length = 2 x 3.5 m = 7 m
= 2 x 1.5 m = 3 m

40. Therefore, total length of angle iron required for one frame=7 + 3
=10 m
The volume = L x b x h = 10 x 0.05 x 0.005 = 0.0025 m3
Density of Mild Steel = 7,861.093 kg/m3
Therefore, weight of one frame = volume x Density
= (0.0025 x 7861.093) x 2 since there is two sides
= 39.30 kg
Therefore, weight of 12 frames = 12 x 39.30 = 471.66 kg
Consider wastage = 5% of 471.66 = 23.58 kg
Therefore, total weight of frame required = 471.66 + 23.58
= 495.243 kg
The rate of angle iron = Nu. 69/kg
The total material cost for door frame = 495.243 x 69
= Nu. 34171.767

41. Conclusion
 The summer internship program in the Technical
Training Institute Chumey gave me the opportunity to
explore new horizon and develop interpersonal skill.
 It also gave me the chance to compare college life with
real field works despite giving us the room to experiment
on new techniques of recent developments.
 Introduction of such a curriculum in our degree program
would definitely equip the fresh graduates like us to face
the world and enable us to perform satisfactory in field.

42.  This training gave us the chance to correlate the subject
knowledge we have learned with the practical
application and gave me the opportunity to explore them.
 In fact we got some ideas about the working
environment that will be there for us in future.
 It made us to expose to new sets of people and the
relationships.
 And most beneficial outcomes of summer training were
the field experiences, skills and the knowledge we got
out of it. It gave us the confidence to be independent and
face the working environment.

43. Thank You