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Write a project specification for project - fire alarm system and the specification must cover the cost, timescales, scale of operation, standard, legislation, ethics , sustainability , quality , fitness for purpose and business data
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a single phase transformer has the following ratings: 10kVA,240/2400V. In the open circuit test with rated primary voltage(240V), the primary current is 0.85A and secondary voltage is2400V. A short circuit test is performed as follows
The practical voltage source is formed by combining an ideal voltage source (Vs) and internal resistance (r). 1) Without computing, determine sign of power Ps delivered by voltage source
A LINEAR ONE-PORT IS MODELLED WITH A: 10V AT LOADRESISTANCE=10kilo ohm AND :0.5mA WITH LOAD RESISTANCE=100kiloohm. Find the equivalent resistance of the given one-port.
a) Find the sample mean. b)If the calculator produces three digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean.
A project manager placed an order for ball bearings for some heavy duty manufacturing machinery. What is the surface area in square millimeters of one of these bearnings if it has a diameter of 0.4 inches
Consider the non-inverting op-amp seen in class, but with a non ideal op-amp that has a finite gain Aod. Determine the expression of the output node potential as a function of the input node potential.
The deflection of a pressure sensing diaphragm under large deflection conditions is non-linear with respect to the pressure difference across the diaphragm. using this feature to advantage, discuss how a linear relationship between air speed
CDMA is a multiple access technique to allow multiple users to share the same bandwidth, based on the orthogonality of their spreading codes. CDMA is a descendent of the direct sequence spread spectrum (DSSS) technology designed for antijam (AJ).
It is desired to place the poles of a second order systemso that the time to the peak of the step response is 0.75 sec andso that the settling time (2% criterion) is 3 sec. Plot therequired pole location in the s plane . What are the required valu..
A 3-phase load on a bus is metered at 3,200 kW with a 0.83 lagging power factor. What is the amount of capacitive reactive power that will correct the system power factor to 0.95 Draw all power triangles and show all variables, Q, P, S, pf.
hree 150 kVA, 480 V/4000, 60 Hz single phase transformers are to be installed on a 4000 V, 3 phase line. The exciting current has a value of 0.02 pu. Calculate the line current when the transformers are operating at no load.
An electric field of 3.10×105 is desired between two parallel plates, each of area 36.0 and separated by 0.620 of air.What charge must be on each plate?
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