Question 169Electricity/Electronics - 1st Asst/Chief70% to pass
As shown in figure "D" of the illustrated digital power meter, what type of single- phase load is under test for power measurement? Illustration EL-0256
AI Explanation
The correct answer is D) an inductive-resistive load.
The explanation is as follows:
1. The illustration EL-0256 shows a digital power meter displaying various electrical parameters, and the question specifically refers to the information shown in "Figure D" of this illustration. This figure depicts a single-phase load that exhibits both inductive and resistive characteristics, which is characteristic of an inductive-resistive load.
2. For a single-phase power measurement, an inductive-resistive load is the most common type of load encountered, as it represents a combination of resistive and inductive elements, such as a motor or transformer.
3. The other options are incorrect because a purely inductive load (A) would not exhibit any resistive component, and a purely resistive load (B) or a resistive-capacitive load (C) would not have an inductive component.
4. Therefore, the correct answer is D) an inductive-resistive load, based on the information provided in the illustration and the typical characteristics of single-phase power measurements.
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