These Metal Work questions and answers were pulled from our book (Metal Work questions for SS3); Compiled to serve as a reference material to help teachers draw up test and exam questions faster. It could also help students assess their level of exam preparation. Each sample question includes correct answers.
[su_note note_color=”#fcf2e0″]Note that Questions are based on the NERDC curriculum (UBE compliant)[/su_note]
Sample Metal Work Exam Questions and Answers
BUFFING
DIRECTION: Choose the correct answer from the lettered options.
1. Operation may be done by ________.
i. hand with a stationary polisher
ii. Die grinder
iii. may be automated using specialized equipment
A. i only
B. ii only
C. iii only
D. i, ii and iii
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is D.[/su_spoiler]
2. In buffing, rough abrasives remove imperfections within the metal surface like ________.
i. pit
ii. nicks
iii. lines and scratches
A. iii only
B. i, ii and iii
C. i only
D. ii only
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is B.[/su_spoiler]
3. The sketch below is a metal finishing machine. It is a ________.
A. bench grinder
B. pedestral grinder
C. machine
D. sanding machine
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is C.[/su_spoiler]
4. The sketch below is a metal finishing machine. The part marked Y is the ________.
A. grinding wheel
B. pedestrial grinding wheel
C. wheel
D. sanding wheel
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is C.[/su_spoiler]
5. The compounds which are made into cakes were mixed with ________.
A. sand particles
B. metal particles
C. additives (sp)
D. tallow or heavy grease
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is D.[/su_spoiler]
Click here to get the complete Metal Work questions for SS3
CASTING DEFECTS
1. Longitudinal facial crack which occurs in continuous casting processes is due to ________.
i. primary uneven cooling
ii. secondary uneven cooling
iii. molten steel poor chemical compositions qualities etc.
A. i only
B. ii only
C. iii only
D. i, ii and iii
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is D.[/su_spoiler]
2. Uneven cooling rates of casting may result in ________.
A. blow holer
B. cold shuts
C. hard spots
D. cracks
E. sponginess
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is C.[/su_spoiler]
3. The defect which occurs when the liquid melt leaks out the mould due to faulty mould or flask is called _________.
A. drops
B. scabs
C. run out
D. swell
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is C.[/su_spoiler]
4. Which of these methods of casting does not have a more robust mould?
A. Centrifugal casting
B. Die casting
C. Sand casting
D. Investment casting
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is C.[/su_spoiler]
5. Blowholes are caused by larger gas bubbles due to ________.
i. air entrained in the melt
ii. steam or smoke from the casting sand
iii. gases from the mould
A. i only
B. ii only
C. iii only
D. i, ii and iii
[su_accordion][su_spoiler title=”See the Answer” open=”no” style=”default” icon=”plus” anchor=”” class=””]The correct answer is D.[/su_spoiler]
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[su_column size=”4/5″ center=”no” class=””]Want more questions like this? Get the Complete Metal Work Exam Questions and Answers for SS3, with even more questions and answers
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