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For how long is the mechanical vibrator shaked?

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+1 vote
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in Basic Civil Engineering by (111k points)
For how long is the mechanical vibrator shaked?

(a) 15-20 minutes

(b) 5 minutes

(c) 10-15 minutes

(d) 30 minutes

This question was posed to me in an internship interview.

I'd like to ask this question from Sieve Analysis topic in division Materials for Construction of Basic Civil Engineering

1 Answer

+1 vote
by (679k points)
The correct option is (a) 15-20 minutes

Easiest explanation: As per IS code 2720 Part 4.  Mechanical vibrator is switched on and allowed to vibrate for 15-20 minutes.  It ensures proper grading of particles.

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