MCQOPTIONS
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MCQOPTIONS
| 1. |
Mark the correct expression for alternator working at a lagging power factor.a) tanψ = (IaXq – Vtsinθ)/(Vtcosθ – Ia*ra)b) tanψ = (IaXq + Vtsinθ)/(Vtcosθ – Ia*ra)c) tanψ = (IaXq + Vtsinθ)/(Vtcosθ + Ia*ra)d) tanψ = (IaXq – Vtsecθ)/(Vtcosecθ – Ia*r |
| A. | tanψ = (IaXq – Vtsinθ)/(Vtcosθ – Ia*ra) |
| B. | tanψ = (IaXq + Vtsinθ)/(Vtcosθ – Ia*ra) |
| C. | tanψ = (IaXq + Vtsinθ)/(Vtcosθ + Ia*ra) |
| D. | tanψ = (IaXq – Vtsecθ)/(Vtcosecθ – Ia*ra) |
| Answer» B. tanψ = (IaXq + Vtsinθ)/(Vtcosθ – Ia*ra) | |