Home ยป What is the approximate time required for a heart-beat ? Circulatory System MCQs What is the approximate time required for a heart-beat ? April 22, 2022 3 Views Q. What is the approximate time required for a heart-beat ? A. 0.5 second B. 0.8 second C. 0.5 minute D. 1.0 minute Answer: 0.8 second