Design of Electrical Machines Mock Test 7

10%

Question 1 of 10

1. What is the insulation material used in the current transformer?

elephantide or presspahn

elephantide and presspahn

elephantide

presspahn

Question 1 of 10

Question 2 of 10

2. The ratio of active conductor section to total conductor section is called space factor.

false

true

Question 2 of 10

Question 3 of 10

3. How many faces are present in the split core current transformer?

Question 3 of 10

Question 4 of 10

4. What is the formula of the cross winding area of the magnet coils?

cross winding area = axial length of coil * depth of winding

cross winding area = axial length of coil - depth of winding

cross winding area = axial length of coil / depth of winding

cross winding area = axial length of coil + depth of winding

Question 4 of 10

Question 5 of 10

5. What is the insulation material on the primary conductor?

bakelized paper tube

bakelized paper tube or resin

bakelized paper tube and resin

resin

Question 5 of 10

Question 6 of 10

6. What is the formula for the depth of the yoke?

depth of yoke = thickness/2

depth of yoke = 3*thickness

depth of yoke = 2*thickness

depth of yoke = thickness

Question 6 of 10

Question 7 of 10

7. What is the diameter of the wire bands made of tin, steel or bronze wire?

2 mm

4 mm

1 mm

3 mm

Question 7 of 10

Question 8 of 10

8. Where are the bearings for the horizontal shaft placed?

outside the machine

outside the machine and in the end shields of the machine

outside the machine or in the end shields of the machine

in the end shields of the machine

Question 8 of 10

Question 9 of 10

9. What is the value of the rated secondary current?

2 A

5 A

1 A

3 A

Question 9 of 10

Question 10 of 10

10. How is the reluctance of the interleaved corner related with the magnetizing current?

reluctance of the interleaved corner is directly proportional to the magnetizing current

reluctance of the interleaved corner is indirectly proportional to the magnetizing current

reluctance of the interleaved corner is indirectly proportional to the square of the magnetizing current

reluctance of the interleaved corner is directly proportional to the square of the magnetizing current

Question 10 of 10