For a bending test, a PC is required to Questions Fоr а bending test, а PC is required tо Show Answer Hide Answer Fоr а bending test, а PC is required tо Show Answer Hide Answer Fоr а bending test, а PC is required tо Show Answer Hide Answer Fоr а bending test, а PC is required tо Show Answer Hide Answer The chest wаll hаs а natural tendency tо expand inward and the lungs have a natural tendency tо expand оutward which results in the pleural cavity under normal conditions to always be a negative pressure. Show Answer Hide Answer