As the diameter of the filler wire is decreased, the heat absorbing effect ____, and the molten weld pool becomes ____.
A. increases, deeper
B. decreases, wider
C. decreases, deeper
D. increases, shallower
Answer: B
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Technician A says a Zener diode breaks down at a specific voltage and will block current flow in both directions. Technician B says a Zener diode breaks down at a specific voltage and allows current to flow in either direction. Who is correct?
A. Technician A B. Technician B C. Both A and B D. Neither A nor B
?Technician A says that drill sizes are classified by letters. Technician B says that drill sizes are classified by numbers. Who is right?
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
This problem concerns a compound for which the following information is available:
• The triple point is located at P=0.8 atm and T=300 K. • The critical point is located at P=40 atm and T=650 K. • The acentric factor is 0.25. • At atmospheric pressure, it boils at 314 K. • At atmospheric pressure, the molar volume is 0.12 L/mol for solid and 0.132 L/mol for liquid. • At atmospheric pressure, the enthalpy of fusion/melting is 400 J/mol. Give your best estimate of each of the following: A) The enthalpy of vaporization at the triple point. B) The vapor pressure at 305 K. C) The vapor pressure at 500 K. D) Estimate the melting point at atmospheric pressure.
As a rule, ride height should not vary more than about _________ from side to side or front to rear.
Fill in the blank(s) with the appropriate word(s).