QN 3.Answer the following questions:True or False a. -----------Safety glasses d

ID: 1996714 • Letter: Q

Question

QN 3.Answer the following questions:True or False

a. -----------Safety glasses do not need to be worn if you are just observing an operating machine.

b. ----------Compressed air should not be used to clear debris from machinary.

c.----------A center drill should be used prior to a twist drill so that the drill does not "walk" on the work surface.

d. --------Non-ferrous materials like Aluminium should neverr be touched to a grinding wheel.

e.--------Roughing is the material removal that provides a smooth surface finish.

f. -------Carbide end mills should be used when cutting very hard materials.

g. -------The dial calipers used in lab have precision upnto0.0001 inches.

h. -------Aluminium is harder than carbon steel.

i. -------A standard dial caliper can reliably read down to 0.0001 inch.

j. ---------A band saw will always give a precise cut.

k. --------When using the Lathe , the chuk T-wrench should never be left in the chuk.

a. false

b. false

c. true

d. true

e. false

f. true

g. true

h. false

i false

j. true

k. true

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