Which of the following statements is/are true when installing full-floating piston pin lock rings?
A. ?They should be installed with their openings facing up.
B. ?They should be installed with the rounded side facing outward.
C. ?Both A and B
D. Neither A nor B
Answer: D
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Which of the following chemicals are often involved in chemical burn injuries?
A) Detergents B) Acids and alkalies C) Calcium hydroxide D) All of the above
List the environmental parameters used in determining the EPD of a product.
What will be an ideal response?
Valve stem-to-guide clearance is usually ________ for an exhaust valve
A) 0.05 to 0.1 mm B) 0.001 to 0.003 inch C) 3 to 5 mm D) None of these
A piping system that has the main supply pipe from the boiler enter the first baseboard unit, all baseboard sections connected in series, and the outlet from the last baseboard section connected to the circulator pump, which connects to the boiler is called a
A) Series loop, double circuit B) Two pipe, reverse return hot water piping system C) Series loop, single circuit hot water piping system D) One pipe, venturi piping system