My Report

Electric Drives Practice Test 8


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. Device with highest d(i)÷d(t) and d(v)÷d(t) capability is _____________

2. Third lowest order harmonic present in 3-Φ fully controlled rectifier is __________

3. R-L-C overdamped loads are generally lagging power factor loads.

4. Calculate the value of the fundamental displacement factor for 1-Φ Full wave bridge rectifier if the firing α=17°.

5. Calculate the De-rating factor if the string efficiency is 98%.

6. A step-down chopper has input voltage 12 V and output voltage 2 V. Calculate the value of the duty cycle.

7. Calculate the value of the fundamental displacement factor for 1-Φ Full wave semi-converter if the firing angle value is 95o.

8. Calculate the value of the Input power factor using the data: Fundamental displacement factor=.96, Distortion factor=.97.

9. Calculate the value of Crest factor if Vpeak=1.5 V and Vr.m.s=2.5 V.

10. Calculate the value of the Input power factor for 1-Φ Full wave bridge rectifier if the firing angle value is 39°.


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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