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We have a 15-V source and a load that absorbs power and requires a current varying between 0 and 100mA. The voltage across the load must remain between 4.7 and 5.0 V for all values of load current
A closed rigid tank contains 2kg of saturated water vapor initially at temperature of 433K. Heat transfer occurs from the system and the pressure drops to 150kPa. Determine the amount of heat loss b
A brass alloy has a yield strength of 280 MPa, a tensile strength of 390 MPa, and an elastic modulus of 105 GPa. A cylindrical specimen of this alloy 12.7 mm in diameter and 250 mm long is stressed
A pipe network in the form of a cube is made with twelve identical pipes. Each pipe forms an edge of the cube. If the entire inflow and outflow occurs at two adjacent corners, determine the percenta
A clean-earth channel, for which n=0.020, is 6m wide and lies on a slope of 0.005236. Water flows at 30m3/s through the channel and enters a reservoir. The water depth in the channel, just before th
Water flows in a circular pipe of diameter D at a depth y (< D). The pipe is laid on a constant slope of So and the Manning coefficient is n. At what depth does the maximum flow rate occur
Find the new optimal solution of the LPP if the availability of the second constraint
Determine the minimum acceptable wall thickness using thin cylinder theory and determine the minimum acceptable wall thickness using thick cylinder simulation software.
Test reveal that a normal driver takes about 0.75s before he can react to a situation to avoid a collision. It takes about 3 seconds for a drunk driver to do the same. If such drivers are traveling
The compound beam is fixed at A and supported by a rocker at B and C. There are hinges (pins) at D and E. Determine the reactions at the supports.
Discuss the method of investigation upgrading of existing gravel road to bituminous paved standard,40km long.
Specify a device describing briefly its principle of operation, that is typically installed downstream of a bursting disc as an indicator of disc rupture,
determine the minimum length of a 5/16 inch, side fillet weld that will be necessary if the plate is subjected to an axial stress of 20 ksi . use an allowable shearing stress through the throat of t
determine the slederness ratio of a 5m column with built in ends if its cross section is circular with a radious of 40mm abd b 50mm square use the concept of effective length
A reinforced concrete beam d = 18 in , and n = 10. find the diamensions b and a , that will resist a bending movement of 60 kip,ft with balanced stress reinforcement if fc =1600 psi and fs = 20 ksi
A short 60mm diameter circle bar is made of material for which the maximum safe compressive strees is 80 MPa and the maximum safe shearing strees is 30 MPa.
An inductive proximity switch is a device used in valve feedback, describe the construction, operating principle and beneficial features of the switch
You prepare a plan to minimise the impact of the buggy code but this would involve a delay in distribution of the software.
A 40 KVA 3300/240V.50Hz .1 phase transformer has 660 turns on the primary . determine 1, the number of turns on the secondary , 2, the maximum value of flux in the core
A 440 -V shunt motor has armature resistance of 0.8 ohm and field resistance of 200 ohm . determine the back emf when giving an output of 7.64 KW at 85% efficiency
Vapour from the second effect is condensed at a pressure corresponding to 325 K. The heat transfer area is 10 m2 and the overall heat transfer coefficients are 3 and 2 kW/m2 in the first and second
The gas flow rate is 1 kg m-2 s-1 of and the water entering is 1.6 kg m-2 s-1. For this system Henry's law holds and ye=1.75x, where ye is the mol fraction of A in the vapour in equilibrium with a m
Sodium hydroxide solution is to be concentrated from 10% to 30% by weight using a single effect evaporator operating at atmospheric pressure, The liquid circulates through a calandria consisting of
Benzene is to be absorbed from coal gas by means of a wash oil. The inlet gas contains 3% by volume of benzene, and the exit gas should not contain more than 0.02% benzene by volume.
A continuous distillation column containing plates is required to distil a 46% w/w ethanol (C2H5OH) in water solution. The overhead product must contain 91 % w/w ethanol and the bottom product 5 % w