Focus On: pH Measurement Question Title * 1. What parameter (or parameters) is adjusted when calibrating a pH sensor? Phase value Offset Offset and slope Offset and pKa OK Question Title * 2. What reference system is the most widely used on industrial pH electrodes? Mercury/Calomel Hydrogen electrode Silver/Silver chloride Iodine/Iodide OK Question Title * 3. Which of these is the correct unit of measurement for the raw signal of a pH sensor? Degrees mV mA kg mbar OK Question Title * 4. Which equation describes the effect of temperature on the slope of pH sensors? Arrhenius equation Nernst equation Henry's Law The slope does not depend on the temperature Schrödinger equation OK Question Title * 5. What is the pH of 4% Caustic Soda? 7 3 10 14 OK Question Title * 6. 80% of pH sensor failures in the process are due to: Reference system that is poisoned or clogged Glass break Glass membrane aging Short-circuit OK Question Title * 7. Which pH sensor membrane glass shape is best for low temperature measurement due to its resistance to contraction? Spherical Cylindrical Spear Flat OK NEXT
