Ahot water heating system has developed length of 200 feet of 1-inch type m tubing. in this circuit there are soldered fittings, also 1 inch in size, as follows: 60 standard 90° ells, 10 standard 45° ells and 4 gate valves. calculate the total equivalent length of the system.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery