When using the tapping method, the arc should be struck beyond the point where the weld should begin by
a distance of about _____.
a. 1/16 to 1/8 inch
b. 1/8 to 1/4 inch
c. 1/4 to 1/2 inch
d. 1/2 to 3/4 inch
c
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The layout-crew hand signal shown in the figure above indicates _____.
a. turning point
b. use long rod
c. observation completed
d. move up
The parabolic trough is a method of _______________
Fill in the blank(s) with the appropriate word(s).The machine operates in the regenerative braking mode as a wind energy generator. A gearbox of 5:1 speed ratio is between the machine and the turbine blades, with the high-speed side connected to the induction machine. If the wind speed exerts 200 Nm on the shaft of the blades, calculate the speed of the induction machine.
A 60 Hz, 480 V, three-phase, Y-connected, six-pole induction machine has the
following parameters:
Methanol is also called ________
A) Methyl alcohol B) Methyl hydrate C) Wood alcohol D) All of the above