A quarry sand conveyor is driven by a 20 kW motor, 3 phase soft start, via a V- belt drive system. The conveyor operates 24 hours per day. It is stopped intermittently by a band brake system. If the head drum speed is 430 rpm and the motor speed is 960 rpm, recommend the size and the number of belts required. The distance between the centers is 612mm. Use a V- belt selection chart and briefly explain the procedure you have used or the steps you have gone through in selecting the belt/belts. () For the given arrangement, what is the lap angle that the belt subtend, on the smaller pully? (ii) What is the maximum belt tension when transmitting 20kW at the running speed given? (ii) What is the initial belt tension required? Note: You may have to do research to find a value for the friction coefficient between the belt material and the pully.

The value for work is not correct

Solve erf only

A of the velocity in m/s of point B. - OB

How many rotations of a 1 m diameter wheel would it take to traverse 50 m of distance.

Find the measurement that is a) most accurate and b) the most precise. 459 ft; 600 ft; 190 ft.

Problem-AA: Consider the following system of equations: -123 = 1.5a + 25n 5 = -21a +n Calculate the two unknows.

Can someone please help to solve this question following the directions and showing neat work and formulas and drawing all needed diagrams. PLEASE AND THANK YOU!!!