Two technicians were discussing hybrid organic acid technology (HOAT) coolants. Technician A stated that hybrid organic acid te
chnology (HOAT) coolants use organic acid salts (carboxylates) that are abrasive to water pumps. Technician B stated that the pH of hybrid organic acid technology (HOAT) coolants is usually below 7. Which of the following about the scenario is true? A. Only technician A's assessment is accurate.
B. Neither technician A's nor B's assessment is accurate.
C. Both technician A's and B's assessments are accurate.
D. Only technician B's assessment is accurate.
B. Neither technician A's nor B's assessment is accurate.
Explanation:
Technician A is wrong because HOAT use organic acid with a low silicate inorganic corrosion inhibitors and it doesn't damage water pump as it contains azole additive which is a copper corrosion inhibitor.
Technician B is wrong because all coolants operate at neutral or basic pH range (pH equal to or greater than 7).
Ferns don't have seeds and they reproduce using spores. Cones have seeds in them and seeds fall out. Pollen enters a flower and then the flower becomes a fruit. This is sexual reproduction of plants. Since ferns don't have this, they have to reproduce with spores.
