3. The specific gravity (G) of aluminum is 2.7. An aluminum volume (V = 1000 cm³) will have the mass:
a) 0.027 kg b) 0.27 kg c) 2.7 kg d) 27 kg
4. The SI unit of Shear Modulus (S) is:
a) kg/m² b) kg·m² c) N/m² d) N·m³
5. The SI unit of Shear Strain is:
a) m b) kg c) degree d) rad
6. The SI unit of Bulk Modulus (B) is:
a) kg/m² b) kg.m² c) N/m² d) N.m³
7. The compressibility (k) is defined as:
a) 1/B b) 1/B² c) 1/S² d) 1/S²
8. Which of the following is a material constant?
a) stress b) shear modulus c) strain d) length
9. Bulk modulus (B) is a measure for the change in:
a) area b) length c) volume d) mass
10. A certain spring obeys Hooke's Law. A force (F) of 10 N stretches the spring 3 m. A force of 30 N will stretch the spring by:
a) 1 m b) 9 m c) 6 m d) 12 m