What is the term for slightly opening a valve?
What will be an ideal response?
Cracking the valve
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The first accurate measurements of the properties of high-pressure gases were made by E. H. Amagat in France between 1869 and 1893. Before developing the dead-weight gauge, he worked in a mineshaft and used a mercury manometer for measurements of pressure to more than 400 bar. Estimate the height of manometer required.
What will be an ideal response?
Which of the following statements is true of gerbils?
a. Same-sex groups should not be housed together. b. A bonded male and female with mate for life. c. Male gerbils will cannibalize the young if left with them. d. Gerbils are strictly nocturnal and should not be disturbed in the day.
Which of the following is NOT true of forward-bias in a diode?
A. Free electrons in the N-material and holes in the P-material both move toward the junction. B. N-material electrons move across the junction to fill the holes in the P-material. C. Negatively charged holes left behind in the N-material attract electrons from the negative voltage source. D. The free electrons that moved into the P-material continue to move toward the positive voltage source.
Which nation successfully repulsed an Italian invasion in October 1940?
a. Albania b. Turkey c. Greece d. Yugoslavia