This is how engineers are

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People come up with peculiar or funny answers in interviews or exams: Interviewer: Why is a thicker conductor necessary to carry a current in A.C. as compared to D.C. ? Candidate: An AC current goes up and down (drawing a sinusoid) and requires more space inside the wire, so the wire has to be thicker. Interviewer: How will you tell if that wall outlet carries AC or DC ? Candidate: I will put my finger in. If it is pushed away, it is DC. If it gets stuck, it was AC. Interviewer: How will you reverse direction of an induction motor? Candidate: I will remove the four bolts at the base, turn the motor around, and put back the bolts. Interviewer: How do you start a synchronous motor? Candidate: Vrrrrrrrmmmmmmmmmmmmmmmmmmm (in rising pitch) Interviewer: Stop! Stop! Candidate: rrrrrrrmmmmmmmmmmmmmmmmmmmm (in falling pitch) Interviewer: How do you limit surge current within an integrated circuit? Candidate: By using a miniature circuit breaker. External (to student) : " Why does a capacitor block DC but allow AC to pass through? Student: See, a capacitor is like this ---| |--- , OK. DC Comes straight, like this ----- -----, and the capacitor stops it. But AC,goes UP, DOWN, Up DOWN and jumps right over the capacitor!" Examiner : "What is a step-up transformer?" Student : "A transformer that is put on top of electric poles." Examiner (smiling): "And then what is a step-down transformer?" Student (hesitantly):"Uh - A transfomer that is put in the basement or in a pit?" Examiner (pouncing): "Then what do you call a transformer that is installed on the ground?" (student knows he is caught -- can't answer) Examiner (impatiently): "Well?" Student (triumphantly): "A stepless transformer, sir!" sadly, I am also an engineer!