Question

Which of the following is not the characteristic of direct reading type pH meters?

(a) Simple operation

(b) Quick to use

(c) Continuous indication output

(d) It requires balancing process

I have been asked this question in an interview for job.

I'm obligated to ask this question of pH Meters in section pH Meters and Ion Analysers of Analytical Instrumentation

Answer 1

Right answer is (d) It requires balancing process

For explanation: Direct reading type pH meters do not require balancing process. Its operation is simple and readings can be read directly.