Engineering, 22.10.2020 16:01 jasmine8142002
Select the correct answer.
A civil engineer is performing a tensile test on a brick. Immediately after he adds the first weight, the brick splits into two parts. Why did this happen?
OA.
brick has high elastic moduli
O
B.
brick has low tensile strength
OC.
compressive stress on the brick
OD.
shear stress on the brick
O E
torsion stress on the brick
Answers: 3
Engineering, 04.07.2019 18:10
The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false
Answers: 2
Engineering, 04.07.2019 18:10
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10
Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.
Answers: 3
Engineering, 04.07.2019 18:20
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?
Answers: 3
Select the correct answer.
A civil engineer is performing a tensile test on a brick. Immediately af...
Mathematics, 28.09.2021 14:00
Mathematics, 28.09.2021 14:00
English, 28.09.2021 14:00
Mathematics, 28.09.2021 14:00
English, 28.09.2021 14:00
Mathematics, 28.09.2021 14:00
Mathematics, 28.09.2021 14:00
Mathematics, 28.09.2021 14:00