1. Which pump among the ones mentioned below can be located above the suction reservoir without an external priming system?
a) Slurry pumps
b) Self-priming pumps
c) Submersible pumps
d) Trash pumps
Explanation: Self-Priming pumps are a type of centrifugal that can be located above the suction reservoir without an external priming system. It has an end suction configuration but an enlarged case to support priming.
2. Which type of pump is designed to handle rocks and other solids?
a) Trash pumps
b) Submersible pumps
c) Slurry pumps
d) Self-priming pumps
Explanation: Trash pumps are a type of submersible centrifugal pump designed to handle rocks and other solids while dewatering. It is used in dewatering construction sites, mines, and utility pits.
3. Which type of pump should be used in order to handle low viscosity fluids?
a) Centrifugal Pump
b) Displacement Pump
c) Submersible Pump
d) End Suction Pump
Explanation: Centrifugal pumps can pump liquids which are of low viscosity. It cannot handle liquids such as oil. The liquid that is pumped by centrifugal pumps should be free from air.
4. In an activated sludge process which type of pump is used to recirculate the sludge?
a) Booster Pump
b) Centrifugal Pump
c) Vane Pump
d) Vertical Turbine Pump
Explanation: The activated sludge does not contain any solids. Also, it is not very viscous. Hence a centrifugal pump can be used for this application.
5. Which type of pump is used while handling the sludge disposal system?
a) Screw Pump
b) Multistage Pump
c) Self-priming Pump
d) Vertical Pump
Explanation: Screw Pumps utilize intermeshing screws driven by timing gears in order to move the viscous liquids. These pumps are used to pump thick liquids. Hence it is suitable to handle sludge.
6. Pumping stations are necessary where pressures have to be decreased.
a) True
b) False
Explanation: Pumping stations are necessary where water is pumped directly into system o where pressure has to be increased because there is an insufficient difference in water levels in gravity flow distribution systems.
7. The most expensive part is the energy supply for pumps
a) True
b) False
Explanation: Pumping stations are situated where water has to be pumped into a distribution system or where pressure levels are to be increased. This requires high energy supplies and is expensive.
8. To reduce the expenses, the pumps must have a high degree of ________
a) Flow rate
b) Efficiency
c) Power
d) Intake
Explanation: To reduce the expenses, the pumps must have a high degree of efficiency and must be maintained properly. To guarantee safe water quality, cross connection of drinking water and waste removal systems must be avoided.
9. What are the facilities including pumps and other equipment for pumping fluids from one place to another called?
a) Pumping facilities
b) Pumping stations
c) Pumping house
d) Pump and equipment facilities
Explanation: Pumping stations are used for a variety of infrastructures such as the supply of water to canals, the drainage of low-lying land and the removal of sewage to processing sites.
10. What is a building where the pumps are located and operated called?
a) Pumping station
b) Pump house
c) Pumping facility
d) Pumping house
Explanation: A building where the pumps are located and operated is called a pump house. This consists of pumps of an irrigation system with a pressurized water filtration system.