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How many push buttons are needed for convenient and easy operations?

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in Engineering Metrology by (829k points)
How many push buttons are needed for convenient and easy operations?

(a) 5

(b) 6

(c) 7

(d) 8

The question was posed to me during an interview.

Enquiry is from Universal Measuring Instrument in section Linear Measurements of Engineering Metrology

1 Answer

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Best answer
The correct option is (a) 5

Easiest explanation: There are 5 push button keys are present near readout for easy measurement. Functions of these 5 buttons are: selection of measuring program, input of probe constant, changing reference datum, addition and subtraction and zero setting.

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