NABTEB Fabrication and Welding Practical Questions 2022 Latest Update
– NABTEB Fabrication and Welding Practical Questions –
NABTEB Fabrication and Welding Practical Questions will guide you before taking part in the NABTEB exams. Fabrication and Welding Practical NABTEB Expo Questions are out now on our website.
About NABTEB
The National Business and Technical Examinations Board was founded in 1992 to domesticate craft level examinations.
More so, it was previously conducted by City & Guilds, Pittman’s, and the Royal Society of Arts throughout the United Kingdom in conformity with the principles of the National Policy on Education.
Its formation was the culmination of a 15-year evolutionary process in which FOUR Government Panels were established at various periods to assess the place and structure of public examinations in our educational system.
Mission
Develop as a Globally Recognized Assessment Body for Craftsmen and Technicians.
Vision
NABTEB is a vision-led, mission-driven public institution with the following vision: To be a Globally Recognised Assessment and Certification Body Preparing Candidates for the Workplace and Academic/Professional Excellence.
The management of the National Business and Technical Examinations Board (NABTEB) is yet to release the 2021 November/December NBC/NTC and ANBC/ANTC examinations results.
Candidates who intend to take part in the 2021 NABTEB GCE can learn how to check their results online.
NABTEB Fabrication and Welding Practical Questions 2022
ESSAY Question 1
(1) (a) State one means of preventing each of the following weld defects:
(i) porosity;
(ii) slag inclusion.
(b) What tool is used to remove slag from a well?
(c) State two safety precautions to be observed when working on a bench.
(d) List two component metals in each of the following alloys:
(i) duralumin; (ii) bronze; (iii) brass.
2. (a) Write short notes on each of the following:
(i) Entrepreneurship;
(ii) Employer;
(iii) Employee.
(b) Differentiate between small-scale and large-scale enterprises.
(c) State three factors to be considered when setting up a welding and
fabrication workshop.
3. (a) State two safety precautions to be observed when:
(i) Chiselling;
(ii) using hazardous gas.
(b) State the essential points to note relating to the welding workshop in
the following areas:
(i) ventilation;
(ii) clothing;
(iii) layout.
(c) List three equipment needed when setting up welding and
fabrication workshop.
4. (a) Differentiate between ferrous and non-ferrous metals.
(b) Explain the following properties of metals:
(i) plasticity;
(ii) toughness;
(iii) malleability.
(c) Describe how the cupola furnace is used to produce cast iron.
Answers
All the candidates that attempted this question did not do that satisfactorily. The solution of the question is given below.
(a)
(i) Means of Preventing Porosity of Weld
– Contact between electrode and water should be avoided.
– The surface of the parent metals must be cleaned of oil,paint, grease, rust and moisture.
– Appropriate arc length must be used.
– Wet electrode must be dried before being used.
– Appropriate welding flame must be used.
– Too high welding current must not be used.
(ii) Means of Preventing Slag Inclusion in Weld
– Correct welding technique must be used for the job.
– Appropriate travel speed must be used.
– The right type of electrode flux coating must be used.
– Damp electrode must not be used.
– Too low welding current must not be used.
– Joints/surfaces must be cleaned before being welded.
– Slag must be removed before making another run.
(b) The Tool Used to Remove Slag from a Weld
Chipping hammer
(c) SAFETY Precaution Observed While Working on a Bench
– Horse play must be avoided.
– Tools must be used by their handles.
– Right tools must be used at all times.
– While working, distractions must be avoided.
– Safety gadgets must be worn at all times.
– Bench must be kept clean.
– Cutting/marking tools must be carried with their cutting/marking edges pointing backwards.
– Tools must not be thrown to one another.
– Tools should not be placed at the edge of work benches.
– Workpieceto be held firmly on the vice before being worked on.
(d) Components
(i) Components of Duralumin
Copper, Aluminium, Magnesium, Silicon, Zinc and Manganese.
(ii) Components of Bronze
Copper and Tin
(iii) Components of Brass
Copper and Zinc
NABTEB is one of the examination bodies set up by the Federal Government in 1992 to reduce the burden of conducting examinations, which involves a lot of technical and trade-related practicals.
The board conducts the National Technical Examination (NTC), National Business Certificate (NBC) and their respective advance level examinations (ANBC and ANTC).
DISCLAIMER! These are not real NABTEB Fabrication and Welding Practical Questions, but likely repeated questions over the years to help candidates understand the nature of their examinations. Ensure to note every question provided on this page.
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