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1. Explain the causes of flue gas condensation and how it can be stopped.
2. Explain the cause of soot formation on the heat exchanger and how it can be stopped.
3. Explain how carbon monoxide is formed.
4. Discuss furnace combustion air requirements.
Determine the value of R resulting in maximum power to R and the maximum power to R.- Plot VR and IR versus R, and find the value of each under maximum power conditions.
(a) What is the centerline temperature of the rod when the surface temperature is 550 K? (b) In a heat -treating process, the centerline temperature of the rod must be increased from Tj = 300 K to T = 500 K. Compute and plot the centerline tempera..
What is the trigger voltage required for your selected triac?
What other information would be required to be able to write a more complete Product Design Specification and design a suitable rack that can be made using Fred's materials and equipment.
Rebuilt ignition systems leave an aircraft rework facility at the rate of three per hour on the average. The assembly line needs four ignition systems in the next hour. What is the probability that they will be available?
Taking into account that air becomes conducting when an electric field in it reaches about 3 • 106 volt/m, determine the radius of the smallest sphere that can be charged in air to a potential of 106 volts.
When a 0.900kg mass oscillates on an ideal spring, the frequency is 1.49Hz . A)What will the frequency be if 0.300kg are added to the original mass. Try to solve this problem without finding the force constant of the spring.
Three planks are connected as shown by bolts of 3/8-in. diameter spaced every 6 in. along the longitudinal axis of the beam. For a vertical shear of 2.5 kips, determine the average shearing stress in the bolts.
Given two NPN BJTs having β= 100 and ro = 100 Kohm. Using a single 5V dc power supply, design a differential pair amplifier having 1mA bias current in each transistor. What is its maximum gain for linear operation (balanced input, unbalanced outpu..
A number equal to the sum of its coordinates is assigned to each point in a rectangular room having three of its contiguous edges as the coordinate axes. Draw a sketch of the constant-magnitude surfaces for the number field generated in this manne..
Derive a transcendental equation for the resonant frequency of the dominant mode by writing the fields in the air- and dielectric-filled regions in terms of TE10 waveguide modes, and enforcing boundary conditions at z = 0, d - t, and d.
Determine the FWHM diameter of the beam 50 mm from the second lens (ie. 100 mm from the first lens.) A third lens is placed at the point with a focal length off.
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