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This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
1. |
The slope of the V-I curve is 0°. Calculate the value of resistance. The graph is parallel to the x-axis. |
A. | 1 Ω |
B. | 1.8 Ω |
C. | 0 Ω |
D. | 2.2 Ω |
Answer» D. 2.2 Ω | |
2. |
Calculate the reactive power in a 5 Ω resistor. |
A. | 7 VAR |
B. | 0 VAR |
C. | 2 VAR |
D. | 1 VAR |
Answer» C. 2 VAR | |
3. |
What is the formula for the active power in the cylindrical rotor synchronous machine? (Eb represents armature emf, Vt represents terminal voltage, δ represents rotor angle, X represents reactance) |
A. | Eb×Vt×sinδ÷X |
B. | Eb×Vt2×sinδ÷X |
C. | Eb2×Vt×sinδ÷X |
D. | Eb×Vt×sinδ÷X2 |
Answer» B. Eb×Vt2×sinδ÷X | |