Which of the following is a main component of a centrifugal pump?
A) Piston
B) Propeller
C) Lobes
D) Volute
Answer: D
Explanation: A) Incorrect. The main components of a centrifugal pump are: housing (casing), shaft, inlet (suction eye), outlet (discharge), impeller, bearings and seals, and volute.
B) Incorrect. The main components of a centrifugal pump are: housing (casing), shaft, inlet (suction eye), outlet (discharge), impeller, bearings and seals, and volute.
C) Incorrect. The main components of a centrifugal pump are: housing (casing), shaft, inlet (suction eye), outlet (discharge), impeller, bearings and seals, and volute.
D) Correct. The main components of a centrifugal pump are: housing (casing), shaft, inlet (suction eye), outlet (discharge), impeller, bearings and seals, and volute.
You might also like to view...
Los requisitos para instalar sistemas de advertencia/calefacción de pisos eléctricos se definen en:
a. NEC® Artículo 424. b. NEC® Artículo 425. c. NEC® Artículo 426. d. NEC® Artículo 427.
In the decision-making process, managers choose the ``best’’ alternative from among a set
What does the term ``best’’ imply in this instance?
a. Efficiency b. Effectiveness c. An operational approach d. A quantitative approach e. A behavioral approach
__________________________________________ are designed to inform a worker of a material’s physical properties, its effects on health, the proper type and style of protective equipment needed when using the material, and the proper first aid treatment to be given when exposed to the material.
Fill in the blank(s) with the appropriate word(s).
Which of the following factors affects how much you adjust the charge of a newly installed split system?
A) the amount of refrigerant in the system when you open the valves B) the recommendation of the refrigerant cylinder manufacturer C) the charge allowance adjustment per foot of liquid line over 15 feet D) the length of the vapor line on the cylinder