1. Flexural Strenght Determination : Test prism No. 1: Length 159.4 mm Width: 40.0 mm Height: 40.0mm

Mass : 582 g Maximum Load: 3.6 KN

Test Prism No. 2: Length : 159.4 mm Width: 40.0 mm Height: 40.0mm

Mass: 575 g Maximum Load: 3.6 KN

Test Prism No. 3: Length : 159.6 mm Width: 40.0 mm Height: 39.9 mm

Mass: 586 g Maximum Load: 3.6 KN

2. Compressive Strength Determination :

Maximum Load (prism halves) (kN) : 82.0 84.3 75.7 80.4 71.8 74.2

Decide, if the test is valid according EN 197-1!

Decide, if the cement complies with the requirements of EN 197-1

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.