Unit 3.2 – Pumps
Authored by Western Philippines
Engineering
University
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47 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pumps that impart velocity to fluid and convert it to pressure are called:
Positive displacement pumps
Dynamic pumps
Reciprocating pumps
Gear pumps
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Single-stage centrifugal pumps are preferred for:
High head, low flow
Most general chemical industry service
Slurries only
Vacuum service
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Positive displacement pumps are normally used when:
High head at low flow rate is required
Large flow at low head is needed
Liquids are near boiling
System curve is steep
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For high head at large flow rate, which pump is typically selected?
Single-stage centrifugal
Multi-stage centrifugal
Diaphragm
Gear
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Centrifugal pumps convert:
Thermal energy to kinetic
Rotational kinetic energy to hydrodynamic energy
Pressure to electricity
Potential to nuclear
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The reverse of a centrifugal pump is:
Vacuum pump
Water turbine
Air compressor
Diaphragm pump
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The pump head HH in feet can be calculated from pressure and specific gravity as:
H=2.31P/SG
H=0.433P×SG
H=P×SG
H=1.0P/SG
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