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Junior WAEC Metal Work 2024: A Guide to Success

The Junior WAEC, also known as the Basic Education Certificate Examination (BECE), is a pivotal moment in the academic journey of JSS 3 students across Nigeria. As we approach the 2024 examinations, it’s crucial for candidates to be well-prepared, especially for technical subjects like Metal Work. This blog post aims to provide insights, tips, and sample questions to help students excel.

Understanding the BECE Metal Work Examination

Metal Work is a subject that tests the practical knowledge and theoretical understanding of students in metal fabrication and manipulation. It’s a subject that requires precision, creativity, and a solid grasp of the concepts.

The Format of the Exam

The Metal Work exam typically consists of two parts:

• Theory Section: This includes multiple-choice questions and short-answer questions that assess your understanding of metal properties, tools, and processes.
• Practical Section: Here, you’ll be asked to perform a task or create a project that demonstrates your skills in working with metal.

Key Topics to Focus On

While the syllabus for Metal Work is extensive, certain areas are frequently emphasized:

• Properties of Metals: Understand the characteristics of different metals, such as malleability, ductility, and conductivity.
• Metal Work Tools: Familiarize yourself with the various tools used in metal work, including their names and specific uses.
• Fabrication Techniques: Gain practical knowledge of processes like welding, cutting, and bending.

Sample Questions and Answers

To give you a taste of what to expect, here are some sample questions along with their answers:

1. What is the ability of a metal to be drawn into wires called?
   • A. Elasticity
   • B. Malleability
   • C. Ductility
   • D. Brittleness

   Answer: C. Ductility

2. Which part of the tree is primarily used to obtain timber?
   • A. Branches
   • B. Cambium
   • C. Sap
   • D. Stem

   Answer: D. Stem

3. What is the milky liquid extracted from rubber trees known as?
   • A. Latex
   • B. Natural
   • C. Artificial
   • D. Gum

   Answer: A. Latex

4. Brass is an alloy made up of copper and which other metal?
   • A. Aluminum
   • B. Lead
   • C. Steel
   • D. Zinc

   Answer: D. Zinc

5. What method is commonly used to manufacture plastic buckets?
   • A. Vacuum forming
   • B. Compression moulding
   • C. Injection moulding
   • D. Calendaring

   Answer: C. Injection moulding

Study Tips for Metal Work

• Review Past Questions: Past questions are a goldmine of information. They can help you understand the exam pattern and the types of questions that are likely to appear.
• Practical Experience: Try to get as much hands-on experience as possible. The more you work with metal, the better you’ll understand its properties and behavior.
• Focus on Weak Areas: Identify topics you find challenging and devote extra time to mastering them.

METALWORK

SCHEME OF EXAMINATION

There will be three papers, Papers 1, 2 and 3, all of which must be taken. Papers 1 and 2 will be a composite paper to be taken at one sitting.

 

PAPER 1: Will consist of forty multiple-choice objective questions all of which must be answered within 1 hour for 40 marks.

PAPER 2: Will consist of five essay-type questions. Candidates will be required to answer four questions within 1 hour 30 minutes for a total of 60 marks.

PAPER 3: Will consist of two practical works, one of which must be carried out by candidates within 3 hours for 100 marks. Candidates shall be

allowed 10 minutes, prior to the commencement of the test to study the drawings. They will be required to make a test piece for which the appropriate drawings will be supplied

Schools will be required to supply materials needed for the test of their candidates.

SAMPLE QUESTION

 

PAPER 1 [OBJECTIVES]

 

1. Whichof the following should be worn when pouring molten metal?
   1. Shield
   2. Helmet
   3. Mask
   4. Goggles

 

2. Whichof the following materials is suitable for forging?
   1. Castiron
   2. Brass
   3. Mild Steel
   4. Bakelite

3. ​

 

 

The type of joint illustrated above is a

1. doublestrap
2. doubleriveted
3. singlestrap
4. singleriveted

Use the sketch below to answer Questions 4 and 5.

 

4. Thetool labeled X is known as
   1. creasing
   2. bick
   3. funnel
   4. hatchet
5. Theoperation being carried out on workpiece Y is called
6. Thesand used for making moulds is
   1. dry
   2. facing
   3. green
   4. parting

 

 

7. Thestatement that defines the requirements of an artifact is referred to as

8. Theoperation performed using the tailstock is
   3. parting
   4. screw

 

9. Themicrometer reading indicated in the figure is
   10. 02 mm.
   11. 15 mm.
   12. 20 mm.
   13. 67 mm.

 

10. Whichof the following materials will require curburizing during heat treatment?
    1. Highcarbon steel
    2. Highspeed steel
    3. Mild steel
    4. Castiron

PAPER 2 [ESSAY]

1. (a) Copyand complete the table below:

	Soft Soldering	Hard Soldering
Flux
Source of heat
Thickness of parent metal
Filler Metal
One safety precaution

(b) (i) Sketch the hatchet soldering iron.

(ii) Label two parts of the sketch in (i).

2. (a) Stateone use of the following parts of the centre
   • Tailstock

 

• Tool post
• Carriage
• Headstock
• Sketch theparting off
• Statetwo safety precautions to be observed when operating the centre

PAPER 3 [PRACTICAL]

 

1. Thefollowing materials are supplied:

 

• oneflat mild steel plate, 97mm x 52mm x 3mm:
• oneflat mild steel plate, 73mm x 34mm x 3mm:
• onecotton bag 120mm x 60mm to enclose the finished
• twotie-on

 

The diagram below shows the assembly and detailed view of each part of a fitting exercise. Using the materials supplied, prepare the parts and assemble the pieces.

 

2. Thefollowing materials are supplied:

 

• onepiece of free cutting mild steel rod, Ø35mm x 90mm;
• onecotton bag, 70mm x 10mm;
• twotie-on

 

The diagram below shows a detailed view of a machine part. Produce the part using the material which has been supplied.

 

NOTE

1. Notdrawn to scale
2. Alldimensions in mm
3. Tolerance= ± 5

 

Conclusion

The BECE Metal Work exam requires both theoretical knowledge and practical skills. By studying diligently, practicing regularly, and using resources like this guide, you can approach the exam with confidence and aim for the highest grades.

Remember, success in Metal Work, as with any subject, comes down to preparation and practice. So, roll up your sleeves, get to your workbench, and start crafting your path to success