Question 3010 of 223 · California Water Treatment Operator Exam
Water hammer is caused by
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 3010
- A: a sudden change in water velocity, such as a valve closing quickly
Explanation
A sudden stop converts moving water momentum into a pressure surge. Slow valve operation and surge control prevent damage.
More questions: Operation and Maintenance
- 3011An operator hears a loud grinding noise and notices that a pump motor is running hot. The first action should be to
- 3012Lubricating a motor bearing with too much grease can cause
- 3013What does an ammeter reading higher than the nameplate full-load amps on a pump motor suggest?
- 3014Lock-out/tag-out procedures must be followed before
- 3015A diaphragm metering pump is feeding too little chemical. A likely cause is
- 3016To calibrate a chemical feed pump, an operator would normally