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Engineering : Mechanical Engineering

In a fluid scroll diode if the inlet is 20mm diameter, then the scroll will be 40mm radius (80mm diamater) as seen in several SAE papers. Why is that, and where does the 4:1 ratio come from? Thanks.

Engineering : Chemical Engineering

The inside of a baking oven is at a temperature of 177degrees celcius. The wall of an oven is made up of 4mm thick stainless steel of thermal conductivity 15.5W/mk. Determine the heat conduction heat loss per unit area from the oven if outside temperature is at 27degrees celcius above room temperature

Engineering : Mechanical Engineering

A regular pentagon ABCDE is jointed at the angles and stiffened by two jointed bars AC and AD. Two opposite forces P, each 3N, are applied at B and E. Find the force in each bar of the framework, stating whether it is tensile or compressive

Engineering : Electrical Engineering

A 100-kW, 250-V DC shunt generator has an armature resistance of 0.05Ω. With the generator operating at rated voltage, determine the induced voltage at full load.

Engineering : Electrical Engineering

All about Logic Circuits

Engineering : Electrical Engineering

Definition of Logic circuits in less than 10,000 words and maximum of 15,000 words.

Engineering : Other

Consider the system

H(z)=(1-2z^(-1)+2z^(-2)-z^(-3))/((1-z^(-1))(1-0.5z^(-1))(1-0.2z^(-1))) , ROC:0.5|z|>1

Sketch the pole – zero plots. Is the system stable?

Determine the impulse response of the system.

H(z)=(1-2z^(-1)+2z^(-2)-z^(-3))/((1-z^(-1))(1-0.5z^(-1))(1-0.2z^(-1))) , ROC:0.5|z|>1

Sketch the pole – zero plots. Is the system stable?

Determine the impulse response of the system.

A regular pentagon ABCDE is jointed at the angles and stiffened by two jointed bars AC and AD. Two opposite forces P, each 3N, are applied at B and E. Find the force in each bar of the framework, stating whether it is tensile or compressive.

Draw the bending moment and shear force diagram for the cantilever beam shown below. Neglect self eight of the beam.(use scale 1:50)

__2m_________1.5m______1m_____1m__

| | | | |

| 5kN/m run | 5kN | 5kN |

|ccccccccccc =========!=======!====== |

| |

|----------------------5.5m------------------------------| 8kN

__2m_________1.5m______1m_____1m__

| | | | |

| 5kN/m run | 5kN | 5kN |

|ccccccccccc =========!=======!====== |

| |

|----------------------5.5m------------------------------| 8kN

A steel bar, area 625 mm^2, is embedded in a block of concrete 100 mm x 100 mm. The length of both the steel bar and concrete block is 300 mm. Assuming a value of 210 kN/mm^2 for Young's Modulus for the steel, and 14 kN/mm^2 for the concrete, determine the load carried by the steel and the load carried by the concrete if the combined section is subject to a compressive load of 5 kN. Assume that there is no slip between the steel and concrete(the strain in both materials is equal) and that the load is applied over the entire cross section.