Depth of penetration of an oxy-fuel weld is determined by:
A) Manipulation of the puddle B) Diameter of welding tip
C) Volume of gas flow D) All of the above
D
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In whip grafting, the cambium, the thin tissue under the bark of the scion, must match the growing area _____
A) at the edge of the root piece on at least one side B) not at all C) completely D) at the edge of the root piece on more than one side
Spring dead spot is most injurious on intensively managed turf in the northern areas where ________ is grown
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If all four input resistors to a summing amplifier are 2.2 k? and the feedback resistor is 2.2 k?, then the gain equals ________
A) 1 B) 4 C) 2.2 D) unknown