Question

Begin the test by separating the grips at a speed of  _______________

(a) 20 mm per minute

(b) 20 inches per sec

(c) 20 inches per minute

(d) 20 cm per minute

The question was asked during a job interview.

My question is taken from Ring Tension Test in portion Testing of Concrete of Concrete Technology

Answer 1

Right option is (c) 20 inches per minute

To elaborate: Begin the test by separating the grips at a speed of 20 inches per minute.