Engineering Answers

How is AM signal generated? Explain. 

Model distillation column with hold up taking necessary valid assumptions?

Model stripping section of an ideal binary distillation column taking valid assumptions

Compute the angles COD, EOF, GOH, ZOY and XOW from the following set of lines whose magnetic bearings are:

1. OC, N34° 14'E and OD, N53°22'W

2. OE, S15°04'E and OF, S36°00'W

3. OG, N70°15'W and OH, S52°05'W

4. OZ, SO° 59'W and OY, S7°55'E

5. OX, S45°10'W and OW, DUE WEST

6. OR, N54 14'W and OS, N13°22'E

7. OT, N15°04'E and OU, N36°59′W

8. OV, N50°15'W and OW, S53°05'W

9. OX, S80°59'W and OY, S17°55'E

10 OJ, N45 10'E and OK, DUE NORTH

Convert the following azimuths to equivalent bearings.

1. Azim of Line CD = 270'00"

2. Azim, of Line DE = 228 15'

3. Azim, of Line EF = 135'00'

4. Azim, of Line DE=0⁰

5 Azim, of Line EF = 357'59"

6. Azim, of Line CD=70"30"

7. Azim, of Line DE-90°

8. Azim, of Line EF = 135°00'

9. Azim, of Line DE = 200'09'

10.Azim, of Line EF = 37'19'

Convert the following azimuths to equivalent bearings.

Azim of Line CD = 270'00"

in a reversible cycle 100 KJ of heat is recieved at 500K then a adiabatic expansion occurs to 400K at which temperature of 50 KJ of heat is recieved , then a further adibatic expansion at 300 K at which temperature of 100 KJ is rejected : (1)find the change in entropy which occurs as the system is restored to its initial state in the remainder of the cycle

The vendor provided 95% pure antimony trioxide [Sb2O3] powder chemical. Molar mass of elements (Sb: 121.8 g/mol; O: 16 g/mol). Solve the following problems to get accurate initial Sb(III) concentration for lab-scale experiments. Hint: The Sb(III) solution needs to be prepared in 1 M HCl solution.

i.How much chemical in mg/L will be required for preparation of 1 g/L Sb(III) stock solution?

ii.What will be the dilution factor to prepare 10 mg/L Sb(III) solution?

A piston–cylinder device contains 1.2 kg of nitrogen gas at 120 kPa and 27°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process.

The radiator of a steam heating system has a volume of 20 L and is filled with superheated vapor at 200 kPa and 150°C. At this moment both the inlet and exit valves to the radiator are closed. After a while the temperature of the steam drops 40C as a result of heat transfer to the room air. Determine the entropy change of the steam during this process.