The Maximum Tensile Force a Rectangular Steel Bar of Cross-Section

question 6

Multiple Choice

The maximum tensile force a rectangular steel bar of cross-section 20 mm % 10 mm can withstand, if it has a tensile strength of 800 MPa, is:

• A) 16 kN
• B) 25 kN
• C) 160 kN
• D) 2500 GN

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Definitions:

Vascular Tissue

The specialized tissue in plants that conducts water and nutrients through the plant body, comprising mainly of xylem and phloem.

Lignin

A substance found in many plant cell walls that confers rigidity and strength, particularly in woody tissues.

Polymer

A large molecule composed of repeating structural units, typically connected by covalent chemical bonds, found in many materials and biological systems.

Vascular Plants

Plants that have specialized tissues (xylem and phloem) for transporting water, nutrients, and sugars throughout the organism.