NCIDQ IDFX 2025 – 400 Free Practice Questions to Pass the Exam

The tearing strength test using the tongue method specifically evaluates the tearing resistance of fabrics after an initial cut. This test involves making a cut in the fabric and then applying force to determine how well the fabric withstands tearing under those conditions. This method helps to assess how much strain a fabric can endure before it tears further, providing valuable information about its performance in real-world applications where tears may occur, such as in clothing, upholstery, and other textile uses. Assessing tearing resistance is crucial for selecting materials that need to maintain their integrity and functionality during use.

The other options focus on different aspects of fabric performance. The overall strength of fabric fibers pertains more to tensile strength, while durability of sewing techniques relates to stitch strength and seam integrity. Resistance to environmental conditions would involve testing for factors like UV resistance or water repellence, none of which are specifically addressed by the tearing strength test conducted with the tongue method.