Page 85 - CITS - WCS - Mechanical

WORKSHOP SCIENCE - CITS

Assignment

1 A steel rod used for brake operation is 1.50 m long. When it is subjected to a tensile force the extension
produced is 0.5 mm. Find the strain in the rod.

0.5  mm  

= 1.5 x 1000  mm 
Strain in the brake rod = 0.0003

2 A helical spring is loaded with a force of 600 Newton and is compressed by 30mm. What would be the
load required to compress it to 10 mm.

Solution

600 N N
= = 20
= 30 mm mm

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CITS : WCS - Mechanical - Exercise 7