Which of the following is an inert gas?
A. Nitrogen
B. Oxygen
C. Hydrogen
D. Helium
Answer: D
You might also like to view...
Embryo ____________________ is performed 7 or 8 days after insemination or breeding and involves lavaging (washing) the microscopic embryo out of the uterus using a special sterile solution.
Fill in the blank(s) with the appropriate word(s).
The immediate cause of the undeclared war between the United States and France was
A. the XYZ affair. B. the Genêt mission. C. the Neutrality Proclamation. D. Washington's Farewell Address. E. Jay's Treaty.
A walk-in freezer has the following conditions. Which remedy below would most likely solve the problem?
? Box temperature is up to +10°. ? the evaporator temperature is -10°, LOW ? the line leaving the evaporator is +12°, High Superheat 22° of superheat ? the ambient air temperature at the condenser is 75°, ? the condensing temperature is 100°, NORMAL (25° condenser split is OK for freezers) ? and the liquid line is 92°. NORMAL (8° subcooling) a. Add refrigerant b. clean condenser c. clean the evaporator d. adjust the TEV
What pressure units are used on the enthalpy diagram?
A) Psig B) Psia C) Pascals D) Bars