Consider a shaft connected to motor at any location. Take its
appropriate snaps. Assume that the shaft is failed and it has to be
replaced. Measure all the required dimensions and variables
required. Design and analyze a shaft considering
Static and Fatigue failure criteria,
Factor of Safety, Manufacturing processes, Material properties
For each of the following terms, describe if they (1) are in
eukaryotes or prokaryotes, (2) help increase or decrease
transcription, (3) are proteins or DNA elements, (4) are cis- or
trans-acting.
(a) activator
(b) enhancer
(c) repressor
(d) operator
(e) transcription factor
(f) initiator
An electric motor exerts a constant torque of τ=10N⋅m on a
grindstone mounted on its shaft; the moment of inertia of the
grindstone is I=2.0kg⋅m2. If the system starts from rest, find the
work done by the motor in 8.0 s and the kinetic energy at the end
of this time. What was the average power delivered by the motor?
Part A:Suppose we now turn off the motor and apply a brake to bring
the grindstone from its greatest angular...
Question1) A motor shaft is subjected to 4 kN axial load and 2
kN radial load. shaft rotates 800 rpm and its roller bearing has
lh=10000 hours working life.Choose the single row roller bearing
.(define the diameter of shaft)(Can you assign it to the table
pictures.)
A4-pole,250V, 50Hz single phase induction motor has rotor
frequency 2 Hz, in starting has following parameters: main winding
Rm=2 Ω ,Xm=4 Ω and staring winding : Rs =4 Ω , XLS=2 Ω ,Xcs=8 Ω.
Find : speed of motor, Im , IS, θm θs, α and p.f.
a) Give TWO (2) types of rotor in synchronous machine and
describe the differences of these two rotors.
b) A three-phase 11kV, 12 MVA, 50 Hz, 4 poles, Y-connected, 0.9
power factor lagging synchronous generator has a synchronous
reactance and armature resistance of 0.05 Ω and 0.4 Ω per phase
respectively. Under full load condition, the friction and windage
losses are 60 kW and the core losess are 39 kW. Determine:
i) The generator speed at no-load condition in rpm...
Describe the and use of armamentarium whicn needs for the following terms:
a. Scaling and root planing
b. Selective polishing
c. Topical fluoride treatment using tray method for adults and children
2. Describe how to identify dull instruments and when instruments need to be sharpened.
Please Show Work
1. A hydraulic motor provides torque to a load through a shaft
turning at 632 rev/min. The motor has 29 gal/min of fluid going
through it, and the pressure at the motor inlet is 2,191 psi. What
torque (in ft-lb) is the motor providing? (Assume 100 %
efficiency).
2. Fluid is flowing at a velocity of 2 ft/s in a 0.6 in. ID
pipe. The pipe transitions to an ID of 3 in. What is the fluid...
1. Describe the axis of an ECG lead and the vector of electrical
current.
2. Identify the waves, complexes, segments and intervals on an
ECG.
3. Identify the limb, augmented limb, and precordial leads.
4. Identify the negative and positive electrodes for the
different lead configurations.
5. Describe the process of analyzing an ECG strip or
recording.