Sewer Study guides, Class notes & Summaries

Massachusetts Plumbers Journeyman Exam Questions And Answers With Verified Solutions Existing Work A plumbing system or any part thereof installed prior to March 11, 2005. Soil Pipe Any pipe that conveys the discharge of toilets, urinals or fixtures having similar functions to the building drain or building sewer. The discharge may be conveyed with or without the discharge from other fixtures Water Distribution Pipe A pipe within the building or on the premises that conveys water from th...

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 as possible D. Within 2 hours Correct Answer: D. Within 2 hours When working in confined s...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

NJ Property/ Casualty Insurance Exam Set with Complete Solutions Why was the commercial Insurance Deregulation Act Created? - ANSWER-To protect the public from the adverse effects of excessive, inadequate, & unfair discriminatory rates & marketing practices Which policies issued must follow the provisions of the Commercial Insurance Deregulation Act? - ANSWER-Commercial policies When must rate amendments & policy forms be filed with the commissioner? - ANSWER-30 days before What losses...

Why are gasoline and volatile solvents objectionable when present in a sewer? - They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equ ipment panels, controls, wiring or circuits unless - You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? - Advance Warning Area, Transition Area, Activity Area (buffer space and work space), Termination Area. Could be 4 or 5, justify your answer on t...

Why are gasoline and volatile solvents objectionable when present in a sewer? correct answers They produce an explosion hazard You should never attempt to install, maintain, repair or replace electrical equipment panels, controls, wiring or circuits unless correct answers You know what you are doing, are qualified and are authorized What are the different areas of traffic zones? correct answers Advance Warning Area, Transition Area, Activity Area (buffer space and work space), Termination ...

A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure (T/F) correct answer: True The use of temperature or humidity manipulation is a ________ control method for insects correct answer: Physical Drift problems can be reduced by: a. using lower pressure, smaller nozzle orifices b. applying in very calm, stable air conditions c. spraying upwind of a sensitive area d. placing bloom as close to target as possible correct answer: d. placing a boom as clos...

According to the Safe Drinking Water Act the basic definition of a public water supply system is any water system that supplies water for human consumption that serves: - 15 service connection or over 25 persons for over 60 days a year What federal law regulates public water supplies? - Safe Drinking Water Act What cause water to move through pores in soil and rocks ? - Gravity What are disease producing bacteria called? - Pathogenic A presence/absence coliform test utilizes - color change...

Waste water discharged into the building drainage system shall not be over _______ *F correct answer: 140 A water tank holds 50 gallons of water. How much does the 50 gallons of water weigh? correct answer: 417 lbs Exterior walls may be notched to a depth exceeding _______________ percent of its width. correct answer: 25 According to the WSSC PFGC, a full flow building water service valve shall be installed within _____ feet of where the water service enters the building. correct ans...

Ammonia mixed with chlorine gas creates a - ANSWER-white smoke The most difficult part of a water distribution operator's job. - ANSWER-furnish a continuous supply Physical connection between a safe and potentially unsafe water source. - ANSWER-cross connection A distribution system is a - ANSWER-looped system Dead end mains should be flushed - ANSWER-every month Excess nitrate causes a condition called - ANSWER-blue baby syndrome Water hardness is caused by - ANSWER-calcium a...