The total static head of a pump
a) is the capacity of the pump
b) is the difference between the static suction head and the static discharge head
c) is the discharge pressure in metres
d) is all the parts of the pump casing
e) is the discharge head of the pump
Answer: B
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Power Engineering Chapter 73
- Turbine pumps are best suited for
- Pumps handling cryogenic materials operate
- A positive displacement stand by-pump will have
- If a pump is cavitating what can you do to prevent or reduce the cavitation?
- Rotary pumps: 1. have tight clearances on all moving parts 2. deliver high pressure liquid without pulsations 3. are positive displacement units 4. should not be started with discharge closed
- Cavitation of a pump refers to, when:
- Turbine pumps: 1. are high capacity pumps 2. are high pressure pumps 3. has the liquid gain energy in a number of impulses
- A diffuser pump: 1. has stationary guide vanes surrounding the impeller 2. has a higher efficiency than a volute type 3. has high suction lift 4. does not have to be primed
- A double-acting pump
- Rotary pumps: 1. are high pressure pumps 2. must be primed 3. use mechanical seals 4. are positive displacement pumps
- The vertical distance from the liquid surface up to the pump centre-line plus the vertical distance from the pump centre-line up to the surface of the liquid in the discharge tank is
- A circulating pump is usually:
- When a pump discharges into a vessel operating at 300 kPa, the 300 kPa is referred to as:
- The difference between static suction head and static discharge head is:
- A pump is capable of suction lift due to:
- A hot water heating system circulator should:
- Rotary pumps:
- The name given to the category of pumps that use gear teeth, vanes, or lobes to move the fluid being pumped is the _____ type.
- When a reciprocating pump delivers fluid every second stroke of its piston, it is called a ___________ pump:
- Centrifugal pumps do not develop good suction lift because:
- Preferably, dynamic pumps should be located _____ the liquid source.
- It is generally accurate to say that:
- Centrifugal pumps convert rotating mechanical energy into kinetic energy then:
- A diffuser pump: