Hydrofluosilicic acid - Study guides, Class notes & Summaries

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outli...

Presedimentation Reduce silt in water Settling zone Calm area in settling basin where suspended materials settle Coagulation Occurs in Seconds Flocculation Occurs in Minutes (optimum velocity 0.5 fps) Floc should be popcorn sized Sedimentation Occurs in Hours (4 hour detention time) Typical Coagulants Aluminum Sulfate Al2(SO4)3 Ferrix Fe2(SO4)3 pH Increasing Chemicals Lime (Ca(OH)2), Caustic soda, Soda ash, Bicarbonate pH Lowering Carbon...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outline of t...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outli...

1. For lower premolars, the purpose of inclining the handpiece lingually is to, A. Avoid buccal pulp horn B. Avoid lingual pulp horn C. Remove unsupported enamel D. Conserve lingual dentine - A. Avoid buccal pulp horn Explanation 1- avoid BUCCAL pulp horn 2- conserve ling. dentine So take A and B if available 2. For an amalgam restoration of a weakened cusp you should, A. reduce cusp by 2mm on a flat base for more resistance B. reduce cusp by 2mm following the outline of t...

Water Operator Class 3-Practice Test Questions with Correct Answers MCL for TTHM's 0.08 ppm MCL for HAA5's 0.06 ppm MCL for Arsenic 0.01 ppm MCL for Lead 0.015 ppm Turbidity meter must be calibrated every: 90 days MCL for turbidity is Less than 0.3 for 95% of the time. pH meters must be calibrated using 2 buffers A grassy of fishy taste in reservoir water indicates Algae blooms Mudballs are caused by Improper backwashing of filters Lime can only be used to soften water with Carbonate ...

Florida drinking water operator "B" Practice Questions & Answers 2024/2025 How much water is needed for a bac T sample? - ANSWER-100 ml What do low pH and iron bacteria in the water cause? - ANSWER-Red water problems Brackish water is considered to be between _____ and _____ Total Dissolved Solids (TDS) - ANSWER-1,000 - 10,000 TDS What is the MCL for the secondary standard for odor? - ANSWER-3 Threshold odor number (TON) What is the MCL for the secondary standard for sulfate? ...

Presedimentation Reduce silt in water Settling zone Calm area in settling basin where suspended materials settle Coagulation Occurs in Seconds Flocculation Occurs in Minutes (optimum velocity 0.5 fps) Floc should be popcorn sized Sedimentation Occurs in Hours (4 hour detention time) Typical Coagulants Aluminum Sulfate Al2(SO4)3 Ferrix Fe2(SO4)3 pH Increasing Chemicals Lime (Ca(OH)2), Caustic soda, Soda ash, Bicarbonate pH Lowering Carbon...