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.

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!"

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, it was DC.

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.

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

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!"

TOP FACTS ABOUT ENGINEERS

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

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

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

Common Engineering Dialogues after a paper:

'What is this man, 60% o f the paper was out of the syllabus'
'This was the worst paper set in the entire engineering history' 'I am failing'

How was ur paper???

Ans : “BACK”.