Observation

Only a few candidates attempted this question and a large proportion of the scored
below average. The expected responses to the question are as follows.

•  (i)       Steps to be taken when turning a piece of wood on a lathe machine
• Cut the length allowing for waste
• Draw diagonal lines on the ends of the piece to locate centre
• Punch the centres
• Set the stock in a way it will not jam the tool rest
• Remove the corners with a gouge chisel
• Scrape the surface and turn to diameter

   (ii)     Safety precautions to be taken when turning

• Always stop the lathe before measuring with a caliper
• Secure the stock firmly between centres
• Wear safety goggles
• Set the stock in a way it will not jam the tool nest
• Turn the stock manually with hand to ensure everything is okay
• Always add a few drops of oil to the dead center before turning

(b)        Items that are shown on the layout of a machine shop

• Machine
• Work benches
• Doorways
• Windows
• Stationary equipment
• Tool room
• Supervisor office
• Timber shed

(c)        Steps to be taken to cross cut a board on the radial arm saw

• Mount a cross cutting saw on the arbor
• Adjust the radial arm to zero at right angle to the fence
• Adjust the motor so that the blade will be at right angle to the table top
• Lock the radial arm with the arm clamp handle
• Adjust the anti-kickback device
• Square the best end of the board
• Fasten a hand clamp to the fence at the right distance
• Place the stock on the table with the square end against the clamp
• Cut the exact length