Which of the following statements regarding poppet valves is false? select one: a. poppet valves are very sturdy. b. poppet valves are typically found in large compressors. c. poppet valves are closed by spring pressure. d. poppet valves operate more quickly than reed valves.

energy can cross the boundaries of a closed system in the form of heat and mass

explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer:

explanation:

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