Select whether the following statement's are true or false: Structural safety is solely the responsibility of the aircraft manufacturer and the airworthiness authorities. If a structural component is not inspectable, it can still be certified according to one of the available design philosophies. Decreasing the stress amplitude while maintaining the mean stress means that less work or energy is applied to the structure, and thus less damage is caused resulting in a longer fatigue life.

Name a specific safety standard and explain how it improves safety in Engineering.

Select all true statements. ANFO explosive is often preferred because using bulk explosives is cheaper, less labor intensive during loading and they fill the entire blast hole diameter. Emulsion explosives should not be used in strong and massive rocks where a high detonation pressure and high detonation velocity is required to break the rock. During rock fragmentation by blasting, the reflection of the compression wave at the free face into tension and shear waves contributes to additional cracking between the free face and the blast hole. When metals or other reactive elements are present in the composition of an explosive, less oxygen is required for a an oxygen-balanced reaction.

6. Identify the safety features shown in this automobile from the following list. Place your answers in the blank spaces given. ● bumper • hood 8 hoed • crumple zones • roll cage Assignment Booklet side-impact beams de cons role Scienc