Preheating is required any time that the metal to be welded is below 30 degrees F because the cold metal quenches the weld.
Answer the following statement true (T) or false (F)
False
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While discussing meeting notes, silence is interpreted as ____.
A. hostility B. agreement C. objection D. insolence
For hot-mix, hot-laid asphaltic concrete mixtures, if the asphaltic content is specified as 5 to 7 percent, how is the optimum percentage determined?
What will be an ideal response?
To prevent bending and other damages, open-web steel joists should be stored _____
a. on their bottom chords b. lying on one side c. standing on end d. on their top chords
Which of the following statements is not correct?
A) Electrical shock causes damage to the central nervous system and takes control of the muscles away from the brain. B) The victim usually releases the electrical conductor when energy is removed. C) When electric current flows through the body, the resistance in the tissue converts most of the energy into heat. D) Involuntary muscle contraction is called tetanus.