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How many numbers of vacuum openings are provided in the carburetor in a complete vacuum control type?

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in Automotive Engine Design by (137k points)
How many numbers of vacuum openings are provided in the carburetor in a complete vacuum control type?

(a) 4

(b) 2

(c) 16

(d) 8

I got this question by my school principal while I was bunking the class.

Query is from Ignition Advance in portion Conventional Ignition System of Automotive Engine Design

1 Answer

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Best answer
Right answer is (b) 2

For explanation: In a complete vacuum control type there are two vacuum openings in the carburetor. One is at the venturi and the other one is just on the atmospheric side of the throttle when the same is closed.

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