A reinforced masonry beam is designed to resist a given bending moment, using the allowable stress design method. If the effective depth is halved, while width and reinforcement are kept constant, the effect will be (A) to halve the maximum compressive stress in the masonry (B) insignificant (C) to double the maximum compression stress in the masonry (D) to quadruple the maximum compressive stress in the masonry

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan