My Report

Electrical Machines Mock Test 4


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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 10%

Question 1 of 10

1. PMDC had no ________ excited machine.

Question 1 of 10

Question 2 of 10

2. Field winding of a dc machine _________

Question 2 of 10

Question 3 of 10

3. In practice, electromagnetic torque acting on the stator _________

Question 3 of 10

Question 4 of 10

4. Hopkinson's test is also called regenerative test due to ____________

Question 4 of 10

Question 5 of 10

5. The quantities needed to complete retardation test are/is _________

Question 5 of 10

Question 6 of 10

6. A 200 V dc motor has external resistances of Ra and Rf in armature and field circuits respectively. The starting current is reduced when?

Question 6 of 10

Question 7 of 10

7. In large synchronous machine, field winding is placed on ______ and ac supply on ______

Question 7 of 10

Question 8 of 10

8. In amplidynes, the resultant d-axis flux is _________

Question 8 of 10

Question 9 of 10

9. Interpoles are used to start the dc motor above the base speed.

Question 9 of 10

Question 10 of 10

10. In a machine with coil span 9, if a coil has its one coil-side in slot 1, then its other coil-side must be in ____________

Question 10 of 10


 

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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