Design Electrical Machines Design Core Winding 1 Online Exam Quiz
Design Electrical Machines Design Core Winding 1 GK Quiz. Question and Answers related to Design Electrical Machines Design Core Winding 1. MCQ (Multiple Choice Questions with answers about Design Electrical Machines Design Core Winding 1
What is the net core area for three stepped transformers?
Options
A : 0.45
B : 0.56
C : 0.6
D : 0.62
What is the ratio of the net core area to the area of the circumscribing circle in square cores?
Options
A : 0.58
B : 0.64
C : 0.70
D : 0.80
What is the value of ratio of gross core area to the area of circumscribing circle in stepped cores?
Options
A : 0.71
B : 0.79
C : 0.89
D : 0.91
What is the range of the ratio of depth to width of core in rectangular core?
Options
A : 1-2
B : 1.5-2.5
C : 1.4-2
D : 1.5-2
How many types of cores are available for core type of transformer?
Options
A : 2
B : 3
C : 4
D : 5
What is the optimum number of steps for small and large transformers?
Options
A : 5, 10
B : 10, 15
C : 6, 15
D : 1, 10
What happens if the utilization factor gets improved?
Options
A : core area increases and the volt/turns decreases
B : core area increases and the volt/turns increases
C : core area decreases and the volt/turn decreases
D : core area decreases and the volt/turn increases
What is the relationship between the number of steps to the area of circumscribing circle?
Options
A : number of steps is directly proportional to the area of the circumscribing circle
B : number of steps is indirectly proportional to the area of the circumscribing circle
C : number of steps is directly proportional to square of the area of the circumscribing circle
D : number of steps is indirectly proportional to square of the area of the circumscribing circle
What type of core section is used for shell type transformer?
Options
A : rectangular
B : square
C : stepped
D : cruciform
What is stacking factor?
Options
A : the allowance made for the power loss
B : the allowance made for the space loss between laminations
C : the allowance made for the heat loss between laminations
D : the allowance made for the power loss between laminations
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