JEA TEST
Study online at https://quizlet.com/_hztnhx
1. What is a volute?: A volute is a curved funnel that increases in area as it approaches the discharge port. The
volute of a centrifugal pump is the casing that receives the fluid being pumped by the impeller, maintaining the velocity
of the fluid through to the diffuser.
2. How hot can you heat a bearing before damaging the bearing 240: The maximum
temperature a bearing can be heated to before getting damaged depends on the type of bearing and its specific
material composition. In general, most bearings are designed to withstand temperatures up to 250°F (121°C) to 350°F
(177°C)
3. 3 types of centrifugal pumps: Radial pumps water 90degrees
Axial pumps water parallel to shaft
Mixed pumps both ways
4. Extension ladder safety: 4to1 rule base 1' away for every 4' high
5. 2 major components of a pump?: Motor & Volute
6. Volume calculations of a round tank: Volume calculations
V=3.14 x Rsquare x H
Gallon
G= V x 7.47
Gallon weight
8.34 pounds
7. What would cause a vacuum pump to lose vacuum: System leaks - Sources of leaks can
include open drain valves, blown gaskets, loose flanges, poorly packed valves, inadequate barometric drop legs on
separator, broken pipes etc. Higher leakage will result in lower vacuum.
8. STUDY Troubleshooting different pumps: STUDY
9. STUDY Vacuum pump Submersible pump Pressure pump: STUDY
10. STUDY What is the motor armature: STUDY
11. STUDY: STUDY
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Study online at https://quizlet.com/_hztnhx
1. What is a volute?: A volute is a curved funnel that increases in area as it approaches the discharge port. The
volute of a centrifugal pump is the casing that receives the fluid being pumped by the impeller, maintaining the velocity
of the fluid through to the diffuser.
2. How hot can you heat a bearing before damaging the bearing 240: The maximum
temperature a bearing can be heated to before getting damaged depends on the type of bearing and its specific
material composition. In general, most bearings are designed to withstand temperatures up to 250°F (121°C) to 350°F
(177°C)
3. 3 types of centrifugal pumps: Radial pumps water 90degrees
Axial pumps water parallel to shaft
Mixed pumps both ways
4. Extension ladder safety: 4to1 rule base 1' away for every 4' high
5. 2 major components of a pump?: Motor & Volute
6. Volume calculations of a round tank: Volume calculations
V=3.14 x Rsquare x H
Gallon
G= V x 7.47
Gallon weight
8.34 pounds
7. What would cause a vacuum pump to lose vacuum: System leaks - Sources of leaks can
include open drain valves, blown gaskets, loose flanges, poorly packed valves, inadequate barometric drop legs on
separator, broken pipes etc. Higher leakage will result in lower vacuum.
8. STUDY Troubleshooting different pumps: STUDY
9. STUDY Vacuum pump Submersible pump Pressure pump: STUDY
10. STUDY What is the motor armature: STUDY
11. STUDY: STUDY
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