Material Management
Muhtasari
A student cuts every rail of a frame to the length shown on the drawing, assembles it, and finds the frame is 50 millimetres too small in both directions. Nothing was measured wrongly. The drawing gave the finished, visible length of each rail, and the tenons at each end have to be inside the joint, so every rail needed to be cut 25 millimetres longer at each end. The arithmetic was right and the material was managed wrongly, and that distinction is what this lesson is about.
Material management covers three things the specification names: planning the cutting and shaping of material to minimise waste, including the nesting of shapes and parts to be cut from material stock forms; how additional material may be removed by a cutting method or joint overlap; and using appropriate marking out methods, data points and coordinates, including reference points, lines and surfaces, templates, jigs and patterns. Underneath all of it sits the specification's own sentence about why any of it matters: the value of using measurement and marking out to create an accurate and quality prototype. This is designing and making principles content, examined in Section C of Paper 1.
Malengo
- Cut materials efficiently and minimise waste
- The importance of planning the cutting and shaping of material to minimise waste e.g. nesting of shapes and parts to be cut from material stock forms.
- How additional material may be removed by a cutting method or joint overlap etc.
- Use appropriate marking out methods, data points and coordinates
- The value of using measurement and marking out to create an accurate and quality prototype.
- The use of data points and coordinates including the use of reference points, lines and surfaces, templates, jigs and/or patterns.
Ramani ya mawazo
Mada hii imechorwa ili uone jinsi mawazo yanavyounganika.
Fungua ramani ya mawazo kwenye programu
Maelezo ya Somo
Dokezo Kamili la Somo Linapatikana kwenye Programu ya Green Bridge
Pata programu ya Green Bridge CBT kwenye simu au kompyuta yako kwa maktaba kamili ya IGCSE: mitihani ya miaka iliyopita, miongozo ya usahihishaji, ramani za mawazo, kadi za marudio na masomo ya sauti.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Material Management. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Arranging parts on a sheet so that as little material as possible is wasted is called A. datum working. B. nesting. C. tolerancing. D. templating. Answer: B
- A shelf is housed 8 millimetres into each side of a cabinet whose internal width is 480 millimetres. What is the cut length of the shelf? A. 464 millimetres B. 480 millimetres C. 488 millimetres D. 496 millimetres Answer: D
- Parts 300 millimetres long are cut from a 2,400 millimetre board with a 4 millimetre kerf. How many complete parts are obtained? A. 6 B. 7 C. 8 D. 9 Answer: B
- Which tool is used to make a small dent so that a drill does not wander from the marked centre? A. A centre punch B. A marking gauge C. A scriber D. A try square Answer: A
- Marking every hole in a row as a running dimension from one edge rather than from the previous hole is done to A. save time. B. prevent errors from accumulating. C. reduce the kerf. D. allow a larger tolerance. Answer: B
Fanyia kazi maswali haya kwenye programu
Fanyia kazi maswali haya kwenye programu
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Material Management? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
