Тест по тексту. Выберите правильный ответ и переведите предложения на русский язык

Выберите правильный ответ и переведите предложения на русский язык:

3.1. All materials respond to external forces ….

a) by resistance

B) by elastic deformation

c) by fracture

3.2. Compression is a pressure ….

a) causing a decrease in vol­ume

b) causing an increase in volume

c) causing small cracks

3.3. Under tension, a material usu­ally … if the force does not exceed

the material's elastic limit.

a) stretches, losing its original length

b) stretches, increasing its original length

c) stretches, returning to its original length

3.4. Fatigue oc­curs when a mechanical part is subjected to ….

a) a steady stress

b) high temperature

c) a repeated or cyclic stress

3.5. Creep occurs when material ….

a) is subjected to twisting

b) suffers from steady force acting on it

c) is subjected to cyclic stress