What is the military symbol for a mass-detonation hazard?

Which of these statements is false?

A) Increasing the target-image receptor distance reduces penumbra. B) Radiation intensity is directly proportional to the square of the distance from the source. C) A long PID increases image sharpness. D) A recessed tube increases the target-image receptor distance.

Choose the best match for each item. Use an answer only once.

A. hemophilia A B. severe vitamin K deficiency C. hemophilia B D. ITP E. one X chromosome F. Bernard-Soulier syndrome G. two X chromosomes H. widespread thrombotic and secondary fibrinolytic reaction I. small, purplish hemorrhagic spots on the skin