TFE question

[paris2012]

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hey can someone please look at the attachment question and tell me why A is not the right answer?
thanks!

 

[Krisko]

the easiest way to tell is that notch that is in A is wrong. You see in the front view how there is that thin piece that extrudes from the top and bottom? A says there is a hole where that piece is, while C correctly identifies the location of that piece.

Hope that helps

 

[paris2012]

thanks it does helps. i've another ques for you. when you are comparing A and C on the left side there is a vertical line that joins the ends on A but on C the ends are not joined by a vertical line. can you tell me what does that line explains.

 

[premac]

thanks it does helps. i've another ques for you. when you are comparing A and C on the left side there is a vertical line that joins the ends on A but on C the ends are not joined by a vertical line. can you tell me what does that line explains.

If there's a line, that means there's a "base" at the bottom somewhere. We can't assume that there's a base, because the front view and the end view doesn't show that.