Engineering Answers

3. Two pulley 12 in diameter and 20 in diameter is connected by a crossed belt with center distance of 45 in. Find the belt length needed to connect them.

2. Two pulleys 10 in. diameter and 25 in. diameter is connected by an open belt with center distance of 40 in. Find the belt length needed to connect them.

1. A lathe having a 5-step pulley is driven by a belt, assumed to be crossed, from a pulley of the same size on the countershaft. The countershaft is to have a constant speed, and the lathe is to have speeds of 60 rpm and 135 rpm when the belt is on the steps either side of the center step. If the minimum speed is 40 rpm and the smallest diameter is 4 in., find the proper speed of the countershaft, maximum speed of the lathe, and the diameter of all steps on the pulleys.

How much product at 10% wet basis moisture would you obtain from drying 3.5 kg of carot (89% moisture)?

In a piston-cylinder arrangement of an engine there are 0.1 kg of gases at 4 MPa and 1527 °C at the beginning of the expansion stroke. The gases expand in a polytropic process with n =1.5 to a volume 10 times larger. Find the expansion work and the heat transfer. Assume the gas to be perfect gas with R= 0.287 kJ/kg-K, and Cv= 0.717 kJ/kg-K.

find the centroid of the area bounded by the curves y^2=x and x=4