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in a particular exchange during busy hour 1200 calls were offered to a group of trunks during this time 6 calls were lost the average call duration
derive lames equation for a thick cylinder subjected to internal pressure with clean diagramsevaluate the maximum and minimum hoop stresses across
a cylindrical shell with flat ends is of 15 m internal diameter and 4 m length it is subjected to an internal pressure of 300 ncm2 the principal
a copper cylinder 40 cm diameter and 10 mm thick is nearly wound with a layer of 4mm diameter steel wire under a tensile stress of 80 mpa if the
a 32m long bar of 16mm in diameter hangs vertically and has a collar attached at the lower end calculate the max stress induced when a weight of 80
what do you understand by solar water heating and discuss different kind of solar water heating based on collector-storage and circulation
define congestion and grade of service congestion this is uneconomic to give sufficient equipment to carry all the traffic which could possibly be
describe flat plate collectors explain liquid flat plate collector with relevant diagramdescribe different types of absorbing surface areas with
a three stage switching structure supports 100 inlets and 400 outlets find the number of cross points and the number of primary and secondary
what is the use of basic earth-sun angles show by mean of diagramillustrate sun as source of energy with relevant dataillustrate flat plate
an amplifier has an input resistance of 600 ohms and a resistive load of 75 ohms when it has an rms input voltage of 100 mv the rms output current is
a group of 20 servers carry traffic of 10 erlangs if the average duration of a call is three minutes calculate the number of calls put through by a
an exchange uses a -40 v battery to drive subscriber lines a resistance of 250 ohms is placed in series with the battery to protect it from short
calculate the number of trunks that can be supported on a time multiplexed space switch given that 32 channels are multiplexed in each stream while
in a 10000 line exchange 0000 to 2999 is allotted to x group of subscribers out of which 40 are active during busy hour the remaining numbers are
explain in detail the various energy resources and their availabilityexplain the followinga types of power plantsb selection of power
with the help of schematic diagram illustrate gas power plant describe the effect of reheating regeneration and inter cooling with the help of
discuss grade of service during busy hour 1500 calls were offered to a group of trunks and 8 calls were lost the average call duration was 120
with the help of neat sketch t-s diagram illustrate the working of simple air evaporative cooling system used in air craftwith the help of neat
an ice plant produces 12tonn of ice per day at 00c using water at 300c the plant operates on reversed carnot cycle between -150c and 280c if the
how are the refrigerants classified describe the desirable property of a good refrigerantexplain in brief the thermodynamics safe and physical
with neat diagram illustrate the cycle of operation of four-stroke spark ignition enginein what respects four-stroke cycle ci engine differ from that