Video narration
Can you solve all seven before the exam clock runs out? In this timed set, find the principle fast. Question 41: slope-deflection uses bending moment; shear and axial deformation are neglected. A. Question 42: a one-to-twenty model means 20 centimetres times 20 equals 400 centimetres. D. Question 43: between fine and coarse material, a geotextile means separation, though it can filter. D. Question 44: alternate wetting and drying means dry rot. A. Question 45: strain energy equals half W delta; delta equals WL cubed over 48EI, giving W squared L cubed over 96EI. D. Question 46: Reynolds number equals VD over nu. Using 3.3 m/s, one metre, and 0.165 cm²/s gives 2 times 10 to the fifth. C. Maximum velocity is unnecessary. Question 47: ignoring Earth’s curvature defines a plane survey. A. That is the shortcut. The answer sequence is A, D, D, A, D, C, A; Question 46 assumes the image reads 3.3 m/s and 0.165 cm²/s.