Systems of Measurement

To find centimeters knowing millimeters, (multiply/divide)by10.

10 mm = 1 cm; therefore, to find cm knowing mm, divide mm by 10.

Describe methods by which conversions between metric and inch measurement systems may be accomplished.

Conversions between metric and inch systems can be accomplished by mathematical procedures, conversion charts, and direct-converting calculators.

What is meant by SI?

SI refers to the International System of Units.

How is the yard presently defined?

The yard is presently defined in terms of the meter: 1 yard = 3600>3937 meter.

6.273 in. = mm

To find cm knowing in., multiply in. by 2.54: 6.273 * 2.54 = 15.933cm.

Express the tolerance ±.02 mm in terms of inches to the nearest 1/10,000 in.

To find in. knowing mm, multiply mm by .03937: .02 * .03937 = .0008 in. The tolerance would be ±.0008 in.

35 mm = in.

To find in. knowing mm, multiply mm by .03937: 35 * .03937 = 1.377in.

125in.= mm

To find mm knowing in., multiply in. by 25.4: .125 * 25.4 = 3.17mm.

Express the tolerance ±.050 in metric terms to the nearest mm.

To find mm knowing in., multiply in. by 25.4: ;.050 * 25.4 = ;1.27 mm.

Can an inch machine tool be converted to work in metric units?

Yes, by the use of appropriate conversion dials or electronic digital readouts.