Ағылшын 151-202

What is denoted by the product ЕА:

• tensile-compressive stiffness;

• modulus of longitudinal elasticity (1);

• shear stiffness;

• bending stiffness;

• torsional stiffness;

Unit of measurement of contraction ratio:

• Pа

•  М

• N

• %

• kg

Unit of measurement of specific elongation when the sample breaks:

• Pa

• %

•  М

• N

• kg

The Poisson ratio is determined by the formula:

• 
• 
• 
• 
• 

The Poisson ratio takes values:

• 2

• 1

•  0; 0.5

•  0; 0.1

•  0; 1

The longitudinal force , according to the rule of signs, initially considered positive and is directed…

• arbitrary;

• along the bricking up;

• parallel to the cross-section;

• from the cross-section;

•  to the cross-section;

The basic unit of measurement of normal stress

•  m

• Pa

• N/m

• N

•  nM

Specify the first step of the section method:

• join;

• discard;

• cut;

•  equilibriate;

• replace;

Specify the second step of the section method:

• equilibriate;

• discard;

• join;

• replace;

• cut;

∆ι l when tension – compression is…

• absolute elongation of beam;

• torsion angle;

• ultimate elongation;

• transverse deformation;

• length of beam;