2025/2026 PMT 108 EXAM WITH Q&A VERIFIED ANSWERS

2025/2026 PMT 108 EXAM WITH Q&A VERIFIED ANSWERS Where to take water samples in swimming pools - CORRECT ANSWER-Both deep and shallow end Required pieces of equipment at each lifeguard station in natural bathing areas - CORRECT ANSWER-- Rescue tube or can - Long light reaching pole or shepherd's crook - Ring buoy with throwing line - Whistle - Bull horn Marine hazard physical conditions - CORRECT ANSWER-- Undertow - Strong currents - Sharp coral reef - Discarded debris Centrifugation - CORRECT ANSWER-A process that uses the force developed by rotation of cylindrical drum or bowl to separate the sludge solids from the liquid Army regulation (AR) that covers Environmental Protection and Enhancement - CORRECT ANSWER-AR 200-1 Swimming area allowance - CORRECT ANSWER-50 square feet (50 square feet of beach per person) Animal urine result - CORRECT ANSWER-Leptospirosis Salt water predators that present as Marine hazards - CORRECT ANSWER-- Sharks - Portuguese man of war - Sting ray Buffer - CORRECT ANSWER-A chemical compound that resists changes in acidity/alkalinity of pool water by neutralizing acids and bases Pool status if 2 out of 3 repeat samples are negative - CORRECT ANSWER-Bacteriologically satisfactory Action after resample exceeds standards - CORRECT ANSWER-Close facility until cause is determined. Superchlorinate if necessary. Formula for calculating gauge pressure - CORRECT ANSWER-0.433 x height of water in feet (h) Formula for calculating absolute pressure - CORRECT ANSWER-Gauge pressure + 14.7 psig Raw sludge - CORRECT ANSWER-Sludge obtained from plain sedimentation tanks is essentially the settleable solids in the raw sewage, can become septic and cause offensive odors Thickening - CORRECT ANSWER-An economically effective process to increase the sludge's concentration and decrease the sludge's volume by removing some free water to the extent where the sludge remains in the fluid state Primary treatment sludge contains - CORRECT ANSWER-65% organic material Secondary treatment sludge contains - CORRECT ANSWER-90% organic material Chlorination - CORRECT ANSWER-Chlorine is added to kill pathogens Contact time and chlorine residual - CORRECT ANSWER-Contact time is 15-30 minutes, chlorine residual 0.5-1.0 ppm Dechlorination - CORRECT ANSWER-Elimination of Chlorine Wastewater treatment Purpose - CORRECT ANSWER-Protect communities, Prevent contamination, Maintain clean water, Conserve water for industrial and agricultural use Black Water - CORRECT ANSWER-Human body wastes from toilets, urinals and soil drains; also referred to as sewage Grey water - CORRECT ANSWER-From bathing and laundry The clean water act - CORRECT ANSWER-1972 All WWTPs should have - CORRECT ANSWER-Secondary treatment with 85% BOD and TSS Any entity that discharge wastewater - CORRECT ANSWER-Must have NPDES permit Army policy - CORRECT ANSWER-AR 200-1 Environmental protection and enhancement...Implements federal, State and local environmental laws TM 5-814-3 - CORRECT ANSWER-Domestic wastewater treatment.....Provides general information Local commanders - CORRECT ANSWER-Obtaining discharge permits Permit must be filed - CORRECT ANSWER-180 days prior to expiration Permits are valid for ____ years - CORRECT ANSWER-5 years domestic - CORRECT ANSWER-wastewater from home Navy lifeguards One lifeguard per - CORRECT ANSWER-50 bathers Each pool has a minimum of - CORRECT ANSWER-Stretcher, Blankie, First aid kit, Drinking water, First aid cot, Pillow, Phone with numbers, Splints, Backboard Healthy considerations for swimming pools - CORRECT ANSWER-Intestinal diseases, Respiratory disease, EENT, Infections of skin Ideal pH between - CORRECT ANSWER-7.2 and 8.0 If pH falls below 7.2, add - CORRECT ANSWER-Alkaline If pH is greater than 8.0 - CORRECT ANSWER-Add acidic substance Algae growth is promoted by - CORRECT ANSWER-Exposure to sun, Increased temp, Insufficient chlorine Excessive ammonia - CORRECT ANSWER-Best method to control algae growth is to prevent it. Intermittent recirculation and chlorination is ineffective. The addition of....will raise the pH - CORRECT ANSWER-Soda ash The addition of______will lower the pH - CORRECT ANSWER-Sodium bisulfate ____is the measure of the ability of a solution to neutralize hydrogen ions or act as a buffer - CORRECT ANSWER-Alkalinity Alkalinity range or value should be between - CORRECT ANSWER-80-120 If the alkalinity is less than 50 ppm... - CORRECT ANSWER-The pH can change rapidly due to bather load, temperature, addition of chlorine, or pH adjustment. Best method for algae control is maintenance of proper - CORRECT ANSWER-FAC residual Outdoor swimming pool should be super chlorinated______to control algae growth - CORRECT ANSWER-Weekly For algae blooms,_________ ______ followed by pool brushing and vacuuming is recommended - CORRECT ANSWER-Super chlorination For established and large algae blooms, the pool must be drained, all surfaces scrubbed with a ______ppm FAC solution - CORRECT ANSWER-200 Use the HPC as... - CORRECT ANSWER-Bacteriological quality indicator Bacteria colony count - CORRECT ANSWER-Satisfactory quality is a bacterial colony count of less than or equal to 200 bacterial colonies per 1.0 ml New construction pre opening Inspection performed by: - CORRECT ANSWER-Installation Medical Authority, Safety, Director of personal and community activities, Directorate of engineering and housing New construction pre opening How many days prior to opening - CORRECT ANSWER-30 days Days prior to opening - CORRECT ANSWER-30 days Checklist for routine inspection of swimming pools - CORRECT ANSWER-DA 7267-R