Look at part of a diagram of the header of a fullsize tee Ka

Look at part of a diagram of the header of a full-size tee. Karen measured the distance from point C to point D. What should the distance from C to D be if the thickness of the pipe wall is 3 inches? A. 9 inches B. 4 1/2 inches C. 6 inches D. 1 1/2 inches

Solution

The question is uncompleted as the description of the header of the tee is not clear. However from the options we can eliminate 9 in and 6 in since the width of the tee is 3 in and hence the sum measure of total width can\'t be more than 6 in. This two option are left of which 1.5 in seems probable owing to size comparisons with wall thickness