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in a steam power plant, 2.5 kg of coal is consumed per second and air required for combustion is 16 kg per kg coal fired. Air enters at 27°C and the barometric pressure is 98.5 kPa. The flue gases enter the chimney at a temperature of 300°C and leave at a temperature of 220°C. The ash loss is expected to be 12 % of the consumed fuel. A theoretical dra
The owner of a video store has contacted you to develop a system to keep track of videos and rentals. He feels that with the growing number of customers, such a system will greatly help in managing accounts and providing better customer service.
Derive the process model that you think will be most appropriate for the above situations. Also list your reasons for choosing the process model.
a research and development department is developing a new power supply for a console television set. it has broken the job down into the following
a) Determine the network diagram of activities involved in the project and indicate the
critical path
b) What is the minimum completion time for the project?
in a crank and slotted lever quick return mechanism the distance between fixed center is 15cm and the driver crank is 10 cm long.find the ratio of time taken to the the cutting and return strokes?
The bar shown in the figure is fixed at A and an axial force of 150 kN is acting at C. The
cross-sectional areas of each segment are given in the figure. The design requires that there
should not be a support reaction at B after displacement along the z axis occurs. To provide this
a linearly distributed axial load q(z) is applied between C and D . If the value of this distribution
is supposed to be zero at D , then obtain the expression of the function of this distribution. The
Elasticity modulus of the material is 3500 MPa. (40 Points)
train the Gradient Descent algorithm for finding the predicted outcome. The predicted outcome is Record Sales. Advertising Budget is the independent variable. Answer the following questions.
a. What is the slope obtained from Gradient Descent?
b. What is the constant obtained from Gradient Descent?
c. At what learning rate convergence was obtained?
d. In how many iterations were the values of slope and constant were obtained with an error of less than 5%?
e. Write your mathematical model with error.
in a certain town, families who have pets have either cats or dogs (or both). on selecting a family at random, the probability that it has a cat is 0.5, the probability it has a dog is 0.4, and the probability that it has both a cat and a dog is 0.25. compute the following probabilities,
A JN flip-flop has two inputs J and N. Input J behaves like the J input of a JK flip-flop, and input N behaves like the complement of the K input of a JK flip-flop (that is N=K’).
(a) Obtain the characteristic table of the flip-flop.
(b) Show that, by connecting the two inputs J and N together, one obtains a D-type flip-flop.
In a mechanism as shown in Fig. 8.39, the link AB rotates with a uniform angular velocity of 30 rad/s. The lengths of various links are : A B = 100 mm ; BC = 300 mm ; BD = 150 mm ; DE = 250 mm ; EF = 200 mm ; DG = 165 mm.
Determine the velocity and acceleration of G for the given configuration.
In a four bar chain ABCD , link AD is fixed and the crank A B rotates at 10 radians per second clockwise. Lengths of the links are A B = 60 mm ; BC = CD = 70 mm ; DA = 120 mm. When angle DAB = 60° and both B and C lie on the same side of AD, find 1. angular velocities (magnitude and direction) of BC and CD ; and 2. angular acceleration of BC and CD.
