Select safe tool practices. (You may select more than one.)
A) Always ground yourself when working around electricity.
B) Arrange your tools around you in a convenient pattern on the floor.
C) Wear thick gloves when working in the dark.
D) Keep tools sharp and clean.
E) Use correct fitting wrenches.
F) Do not work with tools in the dark.
D, E, F
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____________________ dimensioning and tolerancing (GD&T) is a 3-D mathematical system that allows a designer to describe the form, orientation, and location of features on a part within precise tolerance zones.
Fill in the blank(s) with the appropriate word(s).
In automated equipment, the driven machine continuously feeds back information to a master control to maintain any reasonable combination of speed and ____ desired.
a. torque b. temperature c. vibration d. pulses
What is the purpose of excess combustion air?
A) Excess air improves the over-fire draft. B) Excess air is added to increase the combustion temperature. C) Excess air is added to improve combustion efficiency. D) Excess air is added to ensure complete combustion.
Refer to the figure. Assume 2" PVC. Find c-c of L if J=8"
Fill in the blank(s) with the appropriate word(s).