Question 13010 of 731 · Texas Journeyman Electrician Exam
A load consumes 72 kW at a power factor of 0.80. What is the apparent power?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 13010
- B: 90 kVA
Explanation
Apparent power is kVA = kW / PF = 72 / 0.80 = 90 kVA. Multiplying by the power factor instead of dividing gives 57.6, which would be smaller than the true power and therefore impossible.
More questions: Electrical Calculations
- 13011A load has an apparent power of 100 kVA and a power factor of 0.80. What is its reactive power?
- 13012A motor delivers 10 horsepower at the shaft while drawing 8.5 kW of electrical input. What is its efficiency?
- 13013A motor takes 20 kW of electrical input and operates at 90 % efficiency. What is its output in horsepower?
- 13014A three-phase 460 volt motor delivers 25 hp with an efficiency of 92 % and a power factor of 0.86. What is the actual line current (not the NEC table value)?
- 13015A single-phase 240 volt load draws 50 amperes, and a wattmeter reads 10.2 kW. What is the power factor?
- 13016A 5 kW resistance heater runs 8 hours per day. At $0.12 per kWh, what does one day of operation cost?