Engineering, 04.03.2021 22:50 rudondo4747
A rigid pavement is being designed with the same
parameters as used in Problem 4.5. The modulus of
subgrade reaction is 300 lb/in3 and the slab thickness is
determined to be 8.5 inches. The load transfer
coefficient is 3.0, the drainage coefficient is 1.0, and
the modulus of elasticity is 4 million lb/in2. What is the
design modulus of rupture? (Assume that any
parameters not given in this problem are the same as
those given in Problem 4.5
Answers: 3
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:20
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Engineering, 04.07.2019 18:20
Air flows over a heated plate à t a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
Engineering, 04.07.2019 18:20
Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.
Answers: 3
A rigid pavement is being designed with the same
parameters as used in Problem 4.5. The modulus of<...
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