During the four years of World War I, the United States was called upon to supply the Allied forces with remounts and exported nearly a _____________________ horses to Europe.
Fill in the blank(s) with the appropriate word(s).
million
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What is used to lubricate the internal components of a Bosch sleeve-metering, rotary injection pump?
A. fuel B. engine oil from engine lubrication circuit C. dedicated supply of engine oil D. dry sump
Which of the following statements is true?
A. The change in internal energy of an ideal gas can be calculated using the equation dU = CPdT, even if the pressure of the gas isn’t constant. B. The change in enthalpy of a supercritical fluid can be calculated using the equation dH = CPdT, even if the pressure of the fluid isn’t constant. C. The expression CP = CV + R was derived for ideal gases, but is frequently applied to liquids and solids as well. D. The properties tabulated in the steam tables are all state properties, but none of them are extensive properties. E. WEC = -PV, so U - WEC is equal to H.
The major safety concern with R-410A compared to most other common refrigerants is that:
A) R-410A is flammable. B) R-410A is toxic. C) R-410A operates at much higher pressures. D) R-410A is chemically unstable.
If the RT = 6.8 k? and R1 = 10 k? in a two-branch parallel circuit, what is the value of R2?
A) 16.8 k? B) 21.3 k? C) 12 k? D) 3.2 k?