Which statement about the operating sequence of an accessory is correct?
a. The operating sequence of one brand of air cleaner is often completely different from that of another
brand.
b. The operating sequence for all accessories is always extremely simple.
c. The operating sequences of similar accessories are often very similar.
d. Every type of humidifier requires that the furnace be producing hot air in order to function.
c
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When testing valve spring tension, within what percentage of the original tension specification should the measurement be?
A. 5 percent B. 10 percent C. 15 percent D. 20 percent
Sketch end views of the following weld joints in the spaces provided.
1. Flare bevel butt joint 2. Flare V butt joint 3. Single bevel T-joint 4. J-bevel T-joint 5. Lap joint with square edge preparation
________ is the temperature at which the largest percentage of seeds will germinate at the highest rate.
Fill in the blank(s) with the appropriate word(s).
A thread series is a group of common major diameter and pitch characteristics determined ____.
A. by the material of the part B. by the number of threads per inch C. by the thread taper D. both a and b E. none of the above