54. Engineering Viva

 This one is for those who had nightmares during their Engineering Viva's. 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!"

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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, it was DC.

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Interviewer: H ow 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!"

************************************************************************************* 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% o f the paper was out of the syllabus' 'This was the worst paper set in the entire engineering history' 'I am failing'