When checking combustion efficiency, which measurement should be taken first?
A) Draft B) Smoke C) Stack temperature D) Oxygen
C
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?What is the term that describes the camshaft position when the piston is at the top of the intake stroke, the intake valve is beginning to open, and the exhaust valve has not yet finished closing?
What will be an ideal response?
Which type of system is required to be grounded?
a. Systems less than 50V supplied by grounded transformers b. Circuits for cranes that operate over combustible fibers in Class III locations c. AC systems over 1kV that supply mobile or portable equipment d. Circuits for electrolytic cells
Which of the following substitutions produces the triple product rule (with all uppercase symbols): (?w/?x)_X (?y/?Y)_Z (?Z/?X)_z=-1
A. w = W, x = Y, y = Z, z = Y B. w = X, x = Y, y = Z, z = Y C. w = Z, x = Y, y = X, z = Y D. w = Y, x = Z, y = X, z = Y E. Multiple possibilities/Too many degrees of freedom
If the head of a body of fluid increases, which of the following happens to the pressure and depth?
A) The pressure decreases, but the depth increases. B) The pressure is unaffected, but the depth increases. C) The pressure and depth decrease. D) The pressure and depth increase.