Related Questions

The permissible flux density in case of cold rolled grain oriented steel is around
A 1.7 Wb/m2
B 2.7 Wb/m2
C 3.7 Wb/m2
D 4.7 Wb/m2
Hot rolled sheets have ______ value of permeability
A zero
B low
C high
D none of the above
Cold rolled steel sheets contain carbon of the following order
A 0.1%
B 0.2%
C 0.4%
D 0.6%
The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21
The probability of rolling any number on a weight 6-sided die, with faces number 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
A 1/6
B 5/6
C 5/16
D 5/21
A die is rolled and a coin is tossed What is the probability that a 3 will be rolled and a tail tossed?
A 1/2
B 1/6
C 1/8
D 1/12
Substances which have permeability less than the permeability of free space are known as
A Ferromagnetic
B Paramagnetic
C Diamagnetic
D Bipolar
Steel balls are manufactured by cold heading. After cold forming, they are subjected to
A Tempering
B Normalising
C Stress-relieving
D Artificial ageing
The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are
A 0.5 to 0.8 Wb/m2
B 0.8 to 1.0 Wb/m2
C 1.1 to 1.35 Wb/m2
D 1.4 to 1.8 Wb/m2
In transformers using hot rolled steel, the cross-section of the yoke is made about _____ greater than that of the core
A 5 percent
B 10 percent
C 15 percent
D 30 percent
E none of the above

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