CWEA bundled exams with correct answers solutions

Sewer maintenance vehicles are difficult to maneuver At low concentrations, hydrogen sulfide smells like Rotten Eggs which safety hazard in a collection system operations can be detected by an insturment? Toxic Gases What must be checked first before entering a manhole? Prop...

Legally responsible officals are required to report catagory 1 sanitary sewer overflows: Within two hours When testing a manhole for explosive gases when should the first test be made? Before removing the manhole cover When setting up to ventilate a manhole,the air inlet should be ho...

Why are gasoline and volatile solvents objectionable when present in a sewer? They produce an explosion hazard You should never attempt to install, troubleshoot, maintain, repair, or replace electrical equipment unless: You know what you are doing, are qualified, and are authorized. ...

Which welding process is most commonly used for SMALL pipe maintenance welding? OxyAcetylene gas welding What is the proper definition of an engine? It is a machine designed to convert energy into useful mechanical motion What is wet stacking and how can it be prevented? It is unbur...

If the potential difference across the coil is low, the coil will: A-draw too much current B-become too hot C-Produce too much magnetic force D-not heat up D-not heat up The NEC identifies environments that contain flammable vapors and gases as which class of hazardous location? A-Class...

Confined Space A space that: -is large enough to enter and work. -has limited or restricted means for entry. -is not designed for continuous occupancy. Hot Work Permit An employer's written authorization to perform work capable of providing a source of ignition. Inerting A form ...

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 c...

What does COLOR measure? Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. What is the test summary for COLOR? Sample -> Tubes -> Compare to color standards over light source Which of the following techniques is used to...

Receiving job instruction and planning equipment use are part of: a. craft data. b. job preparation. c. work factors. d. leveled time. b. job preparation Anticipating other tasks or problems: a. usually creates additional problems. b. wastes time. c. sharply reduces the number of em...

Which process is most commonly used for small pipe maintenance welding? D. Oxyacetylene gas welding What is the proper definition of an engine? B. It is machine designed to convert energy into useful mechanical motion What is wet stacking and how can it be prevented? C.Wet stacking ...

Acid: A substance which releases hydrogen ions when dissolved in water. Most acids will dissolve the common metals and will react with a base to form a neutral salt and water. An acid is the opposite of an alkali, has a pH rating lower than 7.0, will turn litmus paper red, and has a sour taste...

Celcius (F-32)5/9 HPC media water bath 45`C, 3hr Precision a measure of how close a series of measurements are to one another Accuracy how close a measurement is to the true value Electrical Fire unplug & sodium bicarbonate analytical balance a device for det...

An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 11.1 hours An industry ...

An industry operating an 8-hour shift, 5 days per week, generates 100,000 gallons of wastewater per shift. Their pretreatment system has a capacity of 150 gallons per minute. How long must the pretreatment facility operate to process the wastewater generated each day? 11.1 hours An industry ...