1. Civil engineering precipitated from the need for A. Boundaries
B. Surveys
C. A&B
D. Neither A nor B
2. Egyptians used surveying to
3. Romans designed
and
based on what they had learned from
Egyptians and Greeks surveying methods.
4. True or False. The astrolabe is a fixed surveying method linked to the stars.
5. Why was the name "Civil Engineering given to the profession?
6. True or False. In 1782, John Smeaton founded the Society of Civil Engineers?

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?

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?