Engineering, 29.10.2019 22:31 JosefineRubino2204
An acb sequence balanced three-phase y-connected source supplies power to a balanced, three-phase δ-connected load with an impedance of 9+15i ω/ϕ . the source voltage in the b-phase is 220 ∠−50∘v. the line impedance is 1 + 1i ω/ϕ. use the single phase equivalent circuit for the a-phase to find the current in the a-phase of the load.
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Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
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Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
An acb sequence balanced three-phase y-connected source supplies power to a balanced, three-phase δ-...
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