SOM -SESSION 7

The unaligned forces pushing one part of a body in one direction, and other part of the body in the opposite direction is called __________________

• Tensile Force

• Compressive Force

• Shear Force

• None of the above

Shear strain =

• $\frac{\Delta x}{l}$

• $\Delta x$

• $\Delta x\ X\ l$

• None of the above

Stress which is induced in a body due to change in the temperature is known as __________________

• Tensile stress

• Compressive stress

• Shear stress

• Thermal stress

The ______________________ describes how the size of an object changes with a change in temperature.

• coefficient of thermal expansion

• coefficient of friction

• coefficient of tensile expansion

• None of the above

Temperature strain at free expansion is _________

• $\alpha Tl$

• $\alpha T$

• $\alpha l$

• $\frac{\alpha T}{l}$

Temperature stress When fully prevented is ________

• $E\alpha$
  

• $ET$

• $E\alpha T$

• $\frac{E\alpha}{T}$

Temperature stress When Partially prevented is ________--

• $E\alpha T$

• $\frac{E\alpha}{T}$

• $E\ \frac{\left(\alpha Tl\ -\ \delta\right)}{l}$

• $E\ \left(\alpha Tl-\delta\right)$