Forging to join metals uses:
A) Additional filler metals B) Electric resistance
C) Heat and pressure D) All of the above
C
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List some of the common preventative maintenance tasks for hydraulic systems.
What will be an ideal response?
The rule for a conventional fireplace (only one side open) is that the cross-sectional area of the flue lining should be _____ the total area of the fireplace opening.
A. 1/12 B. 1/10 C. 1/6 D. 1/5
In the following equation of state, a is constant.
P= RT/?V+ (aT^1.5)/?V^2 Which of the following is a correct expression for the molar entropy residual property for this equation of state? A.R ln?(Z)+(1.5a?T)/?V^2 B.R ln?(Z)-(1.5a?T)/?V^2 C.R ln?(Z)+(1.5a?T)/?V D.R ln?(Z)-(1.5a?T)/?V E.None of these are the correct expression.
Which type of thread standard uses more threads per inch?
A) National fine NF B) Pipe threads C) AHRI standard threads D) National course NC