PRACTICAL OF WORKSHOP

(MAHUTA G)
PRACTICAL ONE
TITLE: HOUSE KEEPING IN PAINTING
AIM:Todemonstratetheneedforacleanenvironmenttoensuresuccessfulpainting
MATERIALS:Duster,Thinner,Broom,Brushes,Water,Buckets,Ladder,Scaffold
PROCEDUE:
1.The environment was cleaned by ensuring that each tool is applied to the correct
surface
2.Athinner was used to remove paint stains on floor
3.Sawdustand paper were usedas protective sheet spread on the floor to reduce
falling
paint staining the floors.
4.The leftover was returned to the store
5.The floor of the workshop was later cleaned
PRECAUTIONS:
1.A face mask was used to protect against dust
2.Proper inspection of ladder and scaffold
3.Equipment/tools used were properly washed and stored
DRAWING:

EXERCISES:
1.Why would you advise your client to paint his house?
·Painting will improve the physical appearance of the house and it will also
prevent damages and reduce some of the maintantenace cost.
2.Briefly describe the various paint types that you know.
a.Glossy paints e.g. oil based paint
b.Primers
c.Water based paint e.g. emulsion
d.Textured paints etc.
3.Explain the precautions you would take to protect your during in painting.
a.The proper use of personal protective equipment is the precaution to
take into account
b.Proper choice of tools and equipment to use
c.Proper choice of paint and painting technique to use
4.What factors would render the paint operation a failure?
a.Incorrect choice of painting technique and tools
b.Inadequate drying time
c.Inconsistency in coating
d.Poor ventilation
5.Take a look at the workshop and state reasons why painting cannot just
commence
immediately.
a.The reason why painting cannot commence is that the workshop paint has no
any
physical damage.
b.The paint also has not reached it maintenance periodand no sign of failure or
poor
workmanship.

PRACTICAL TWO
TITLE: PAINTINGOF WALL
AIM:To demonstrate the technique(s) of painting wall and ceilingsurface
MATERIALS:Emulsion,Surfaces,Broom,Brushes,Water,Buckets,Ladder, Roller
PROCEDUE:
1.All plaster splasheswere removedwith scraperto preparethe surfaces
2.Holes were adequately filled and sanded to give a levelled surface
3.A soft brush was used to remove dust.
4.The work was allowed for 30min to 1hr.
5.Emulsionpaint was dilutedwith 10% additional water and paintwas used as a
primer.
6.Later, full-strength emulsionwas applied to the surface and allowed to dry for
2hrs
7.The final coat of the emulsionwas applied and surface was protected until it
dries.
to 3hrs.
PRECAUTIONS:
1.PPE was used inline with the safety of painting surfaces
2.Holes, scratches or grooveswere all filled.
3.The leftover was well covered and store to prevent drying

DRAWING:

PRACTICAL THREE
TITLE: SURFACE TREATMENT OF WOOD AND PAINTING
AIM:To demonstrate to the students how to prepare and paint wood surfaces.
MATERIALS:Wood planed 300 x 80 x 21, Bitumen (glue and wood dust),Knotty
paint,
Wood primer, Glass paper, Wood finishing paint/oil paint, Brushes, Scaffold
PROCEDUE:
1.The woodwas rub downin the direction of the grain withaglass paper.
2.All the dust and dirt were cleaned from the surface.
3.The wood was sealed with a primer.
4.To prevent resin leakingknotswere sealedwith a mixture of shellac and
methylatted spirits.
5.Holes and cracksweresealedwith a plastic filler paste.
6.The surface was rubbed with glass paper to smooth the filler.
7.The undercoatand glass coat were brushed.
8.After the undercoat dries, with was rubbed again and a second coat of
undercoat
was applied.
9.The painted surfacewas protecteduntil it has dried.
PRECAUTIONS:
1.Hand gloves and goggleswere used by studentsto protect themselves from dust
and
chemicals.
2.The instructorensured the workspace was well-ventilated before painting began.
3.All loose wood dust was removed by sanding and wiping the surface properly.
4.The paint and solvents were kept away from open flames to prevent fire hazards.

DRAWING:

EXERCISE
1.Why is gloss paint best suited for wood surfaces?
Gloss paint is best suited for wood surfaces due to its durability, water
resistance,and easy-to-clean glossy finish.

2.Describe the preparation to new wood to receive paint.

QUATIONS
PRACTICAL NO:4
TITTLE: SURFACE TREATMENT OF METAL AND
PAINTING
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION ?
EXERCISES
1.Why is it necessarily important to prime ferrous metals before delivery to site?
2.How would you prepare iron and steel in the workshop to receive paint?
3.A good key for paint is essential. How can you achieve this for non-ferrous metals?
4.What options do you have on the site to prepare ferrous metals to receive paint?
PRACTICAL NO:5
TITTLE: SPRAYING USING MACHINE
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
3.What are the precautions to be taken in paint spraying exercise?
2.What are the advantages and disadvantages of the paint spraying machine?
1.Describe the painting operation by the brush method.
PRACTICAL NO:6
TITTLE: FACTORY ACTS AND SAFETY REGULATION IN
PLUMBING WORKSHOP
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
3)Measure out the Plumbing Workshop and draw it to scale, locating the positions of
the major equipment, work benches, materials and tools storage.
4)Identify and list as many hazards you can, suggesting ways of removing the hazards.
be taken.
5)Identify hazards associated with each activity and precautions or protection that could
6)What can a plumber do to help prevent accidents when working in workshops?
PRACTICAL NO:7
TITTLE: PLUMBING TOOLS, EQUIPMENT AND
MATERIALS FOR PLUMBING WORKS
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)Why are plastic materials popularly used in plumbing work throughout the world?
pipeline?
2)How does a stop tap prevent back-siphonage of water into the man supply?
3)Which tap, valve or cock should be fitted on a lowpressure cold water pipeline and why?
4)What is the difference between the valve or jumpers in hot and cold water drawoff
taps?
5)What flow control device would create water hammer if fitted on a cold water main
6)Describe the operation of a Portsmouth ball valve.
PRACTICAL NO:8
TITTLE: PLUMBING MATERIALS FOR VARIOUS JOBS
PURPOSES
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
7)State the ten important tools required when using a hydraulic pipe bender.
piece of 25mm diameter
8)Describe the step by step process of working out the heat length for a 900
bend on a steel pipe.
PRACTICAL NO:9
TITTLE: PLUMBING MATERIALS FOR VARIOUS JOBS
PURPOSES (CONT’D)
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
10)Differentiate between heat bending and spring bending used on light gauge copper
9)Why do you allow for spring-back when using a bending machine?
pipe.
PRACTICAL NO:10
TITTLE: PLUMBING MATERIALS FOR VARIOUS JOBS
PURPOSES (CONT’D)
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)On a screw joint between steel pipes, where would you find the ‘washout’ thread and
why should it be found there?
2)Which type of steel pipe is the most suitable for carrying cold water supplies and
why?
PRACTICAL NO:11
TITTLE: PLUMBING MATERIALS FOR VARIOUS JOBS
PURPOSES (CONT’D)
AIM?
MATERIL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)Brass is a mixture of two metals list and explain
2)Explain why plastic are popularly used as plumbing materials throughout the world.
PRACTICAL NO:12
TITTLE: FIX PLUMBING SANITARY APPLIANCES IN
APPROPRIATE POSITIONS
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)Draw a section through a plunger action siphon in a flushing cistern and describe in
simple terms how it works.
2)Describe two possible results if a bowl valve fails to shut off the water to a flushing
cistern with a blocked overflow pipe and a sealed cover.
PRACTICAL NO:13
TITTLE: METHOD OF INSTALLING AND FIXING
APPLIANCES CONT’D
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
3)List three materials from which domestic sinks can be made.
4)List and explain two each of soil appliances and waste appliances
5)What are the qualities of materials used for the manufacture of sanitary appliances.
PRACTICAL NO:14
TITTLE: WATER SUPPLY
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)List the factors that should be considered when laying an underground service pipe.
WC cistern and the feed cistern for a hot water installation.
b.What are the specific requirements relating to access to the cistern for repair of
a.List the requirements for the cistern.
2)Mark a labelled diagram of a direct cold water system to sere a sink, washbasin, bath,
3)A cistern is to be installed to supply water for domestic purposes.
the floatvalve?
4) Where should service valves be fitted to the pipework in a cold water system?
PRACTICAL NO:15
TITTLE: DRAINAGE SYSTEMS
AIM?
MATERIAL?
PROCEDURE?
PRECAUTION?
EXERCISES
1)List the main advantages and disadvantages of the twppipe system of sanitary pipe
work over the one-pipe system.
2)List the basic principles that should be followed when planning a drainage system for a dwelling.
3)Explain one method of protecting a drain passing through a wall.
4)Why is it important to ensure that drains are adequately ventilated?

ABDOUL
MAHUTA