Manhole - Study guides, Class notes & Summaries

A flow of 60 gph is equal to? a. 1 mgd b. 1mg/L c. 10 gpm d. 1 gpm - Answer d. 1 gpm (60 gph / 60 min/hr ) The slope of a sewer is measured by a. The difference from the crown to the invert b. The difference in invert elevations over the length of the pipe c. Using the diameter of the pipe d. Only entering the manhole - Answer b. The difference in invert elevation over the length of the pipe An air gap can be used to a. Clean sewer blockages caused by greas...

Why would you not paint a wooden ladder OSHA yellow? o :## The Color can hide cracks in the wood What is the part of a file that you put a handle on? o :## The Tang What are the formulas for a rectangle and circle? o :## LxW=A 3.14xR2 How many gallons of paint would it take to cover 4 walls? o :## Find the square footage of all walls, and divide by the square footage of paint in the bucket Does a micrometer wrench; Light Click slip until it reaches its place on the dial? 2 | P a g...

CWEA Collections System Maintenance Grade 3/ 82 Q&A. Terms like: When setting up to ventilate a manhole, the air inlet should be how many feet above street level? a. 4.0 b. 3.0 c. 2.0 d. 1.0 - Answer: c. 2.0 Which chemical may be used for odor control in a sewer system? a. Calcium chloride b. Hydrogen peroxide c. Oxidized aluminum d. Sodium chloride - Answer: b. Hydrogen peroxide

The piping for the ___ is connected outside of the tank, usually on the end, with a manhole on top of the tank: A. IM 101 B. IM 102 C. IM 105 D. IM 107 - Answer B. IM 102 The statement "Keep Away from Waterways" is found on a pesticide label. This statement is referred as a/an: A. Signal word B. Hazard statement C. Pest control product warning D. Incomparability statement - Answer B. Hazard statement The vehicle pictured below is a: A. MC 331 B. MC 338 C. MC 312/DOT...

neutral point - ANSWER-The common point on a wye-connection in a polyphase system or midpoint on a single phase, 3-wire system, or midpoint of a single phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct current system In the NEC the words ___________indicate a mandatory requirement - ANSWER-Shall or shall not On a four wire Delta connected system with a midpoint of one phase winding is grounded, only the conductor or bus bar having a higher phase voltage the ground ...

BLETC Final Exam Questions and Answers 100% Pass ____________ are used to primarily relieve pain. Narcotics -10 42 USC 1983: federal civil statute -17 y.o person charged with criminal trespass: adult jail -18 usc 242: criminal action -3 aspects most important to n LEO: physical conditioning, mental conditioning, and physical appearance -6th amendment: assistance of legal counsel -a child under 18 without necessary sustenance is : deprived -accident where damage to vehicles greater than...

A Flagger should Stand? A. On the shoulder adjacent to traffic being controlled B. In the closed lane before stopping vehicle traffic C. In the traffic lane. D. As stated in "A" or "B" above. D. As stated in "A" or "B" above. Legally responsible officials are required to report category 1 sanitary sewer overflows? A. Within 30 days B. Before end of the day C. As soon as possible D. Within 2 hours D. Within 2 hours When working in confined spaces or sewers, what form of ligh...

Type of pump that discharges waste in the sump pit and transfers the waste to the house drain. (Max Fajardo) correct answer: Sewage Ejector Minimum dimension of a septic tank manhole. correct answer: 503 mm drain that discharges objectionable waste such as acids and other chemicals from industrial equipment . correct answer: Industrial drain Minimum diameter of pipe of any water closet. correct answer: 75 mm Maximum number of water closets able to discharge into a shared 75mm dia...

CWEA Collections System Maintenance Grade 3 | 82 Questions with 100% Correct Answers A Flagger should Stand? A. On the shoulder adjacent to traffic being controlled B. In the closed lane before stopping vehicle traffic C. In the traffic lane. D. As stated in "A" or "B" above. Correct Answer: D. As stated in "A" or "B" above. Legally responsible officials are required to report category 1 sanitary sewer overflows? A. Within 30 days B. Before end of the day C. As soon ...

CWEA COLLECTIONS GRADE 1/28 QUESTIONS AND ANSWERS (A+) Sewer maintenance vehicles are - √Answer :difficult to maneuver Quiz :At low concentrations, hydrogen sulfide smells like - √Answer :Rotten Eggs Quiz :which safety hazard in a collection system operations can be detected by an insturment? - √Answer :Toxic Gases Quiz :What must be checked first before entering a manhole? - √Answer :Proper barricades or warning devices around manhole. Quiz :When should field crews us...