You measure the length of a short pipe nipple that must be cut and arrive at the fraction 28/32 inch. Reduce this fraction to its lowest terms. This fraction, expressed in its lowest terms, is inch.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?