The following readings were obtained on O.C and S.C tests on a single

1.	The following readings were obtained on O.C and S.C tests on a single phase, 4 kVA, 400/200V transformer. 0.C. test (LV Side): 200V, 1A, 64W S.C. test (HV Side): 15V, 10A, 80W Determine the efficiency at full load at 0.8PF lagging. ? .
Answer» Samples of SIMULATED lake WATER are exposed to SO2(g). Two graduated cylinders containing samples of simulated lake water had CaCO3(s) added, and dissolves to form CA2+ IONS and CO32- ions. The chemical reaction of water exposed to SO2(g) is: H2O(l) + S02(g) --> H2S04(aq) (sulphuric acid) , producing Hydronium ions in solution. Hydronium ions react with the CO32- ions which then produces, options: HCO3-(aq) (weak acid) H2CO3(aq) (weak acid) HCO3-(aq) (strong acid) H2CO3(aq) (strong acid)

The following readings were obtained on O.C and S.C tests on a single phase, 4 kVA, 400/200V transformer. 0.C. test (LV Side): 200V, 1A, 64W S.C. test (HV Side): 15V, 10A, 80W Determine the efficiency at full load at 0.8PF lagging. ? .

Answer»

Samples of SIMULATED lake WATER are exposed to SO2(g). Two graduated cylinders containing samples of simulated lake water had CaCO3(s) added, and dissolves to form CA2+ IONS and CO32- ions. The chemical reaction of water exposed to SO2(g) is:

H2O(l) + S02(g) --> H2S04(aq) (sulphuric acid) , producing Hydronium ions in solution.

Hydronium ions react with the CO32- ions which then produces,

options:

HCO3-(aq) (weak acid)

H2CO3(aq) (weak acid)

HCO3-(aq) (strong acid)

H2CO3(aq) (strong acid)

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The following readings were obtained on O.C and S.C tests on a single phase, 4 kVA, 400/200V transformer. 0.C. test (LV Side): 200V, 1A, 64W S.C. test (HV Side): 15V, 10A, 80W Determine the efficiency at full load at 0.8PF lagging. ? .​

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The following readings were obtained on O.C and S.C tests on a single phase, 4 kVA, 400/200V transformer. 0.C. test (LV Side): 200V, 1A, 64W S.C. test (HV Side): 15V, 10A, 80W Determine the efficiency at full load at 0.8PF lagging. ? .