City Guilds Model Questions Vol1 2023 Engineering Question 19

Practice objective / multiple choice question 19 from the 2023 City Guilds Model Questions Vol1 Engineering examination.

City Guilds Model Questions Vol1 2023 Engineering Objective / Multiple Choice Medium Difficulty
Question 19 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2023 • ENGINEERING • objective

A balanced three‑phase Y‑connected load is supplied from a \(400\ \text{V}\) line‑to‑line source at \(50\ \text{Hz}\). The total real power consumed is \(30\ \text{kW}\) and the total reactive power is \(40\ \text{kVAR}\). Determine (a) the apparent power per phase in volt‑amperes, (b) the magnitude of the per‑phase impedance in ohms, and (c) the resistance of each phase in ohms. Give numerical answers to two decimal places where appropriate.

Answer Options

A. a) 16600.00 VA; b) 3.50 Ω; c) 2.20 Ω
B. a) 18000.00 VA; b) 2.80 Ω; c) 1.70 Ω
C. a) 15000.00 VA; b) 4.00 Ω; c) 2.10 Ω
Correct Answer D. a) 16666.67 VA; b) 3.20 Ω; c) 1.92 Ω
Correct Answer
D
Correct Option:
a) 16666.67 VA; b) 3.20 Ω; c) 1.92 Ω

About This Question

This is City Guilds Model Questions Vol1 2023 Engineering Question 19. It is one of the objective questions from the 2023 City Guilds Model Questions Vol1 Engineering examination.

Difficulty level: Medium .

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