For my engineers :-)

This is best answer by B.E students during viva. >---> This one is for those who had nightmares during their Engineering Viva's (EEEs and ECEs). They bring back fond memories for those who care to smile at the past

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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.

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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!" ------- good one : - )

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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 AC. If it gets stuck was DC.

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Interviewer: How will you reverse direction of an Induction motor?
Candidate: I will remove the four bolts at the x-ud, turn the motor around, and put back the bolts.

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Interviewer: How do you start a synchronous motor?
Candidate: Vrrrrrrrmmmmmmmmmmmmmmmmmmm (in rising pitch)
Interviewer: Stop! Stop!
Candidate: rrrrrrrmmmmmmmmmmmmmmmmmmmm (in falling pitch)

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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 transformer that is put in the x-udment 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!"

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TOP FACTS ABOUT ENGINEERS
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Engineers at work:
Assignments solved by one and then carry out mass transfer operations throughout the class

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The most important machine for Engineers:
Xerox Machine (Without which assignment Completion couldn't be possible)

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Top two Engineering Rumours:
Did you hear the results are being put up today at 5:30pm
Did you hear the exams are postponed by two weeks

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Common Engineering Dialogues after a paper:
'What is this man, 60% of the paper was out of the syllabus'
'This was the worst paper set in the entire
engineering history' 'I am failing'

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What is B.E?

8 semesters
80GB syllabus
80MB we study
80KB we remember
80 Bytes we answer
BINARY marks we get,
The Degree finally we get is BE
That is Brain Empty (B.E)