_____ occurs when the weld pool shrinks as it cools and the bead becomes concave.?
?
Fill in the blank(s) with the appropriate word(s).
Suck-back
You might also like to view...
Which of the following treatment methods is used to remove dissolved iron?
a. softeners b. neutralizing tanks c. chlorination d. manganese oxidizing filters
What is the maximum distance between pitot tube measuring points in rectangular ducts?
a. 6 inches b. 10 inches c. 12 inches d. 24 inches
Why did Ptolemaic Egypt last the longest of the Hellenistic kingdoms?
a. Egypt controlled a vast empire that included most of the former Persian Empire. b. Egypt was a governable kingdom whose wealth allowed it to remain militarily strong. c. Ptolemy I managed to conquer Greece and Macedonia, giving him control of the Greek homeland. d. Egypt was the poorest of the three main Hellenistic kingdoms, so the Ptolemies attracted few rivals for power.
A refrigeration system that uses the evaporator of a higher-temperature system to cool the condenser of a lower-temperature refrigeration system is called a:
A) Subordinate system. B) Supercritical system. C) Cascade system. D) Transcritical system.