Design Questions Set 4:
For butt joints, the number of cover plates can be:
Solution:
The viscometer used to measure the viscosity of the fluid directly
Solution:
Consider the following data for a ball bearing:
Bearing dynamic loading = 120 kN
Dynamic equivalent loading = 60 kN
Calculate the basic life rating of the bearing.
Solution:
For a cotter joint, find the diameter of the rod and thickness of the cotter which can transmit a load of 90 kN. (σt = 100 N/mm²)
Solution:
Calculate the bearing life if the expected life for 90% of bearings is 8500 hours and the shaft is rotating at 1700 rpm.
Solution:
A mild steel rod supports a tensile load of 50 kN. If the stress in the rod is limited to 100 MPa, find the diameter of the rod when the cross-section is circular.
Solution:
What does a 'spongy' feeling of the hydraulic brake pedal when pressed by the driver indicate?
Solution:
For a plate of thickness t, which is in tension and has a permissible stress of σt, with pitch p, and rivet hole diameter d, find the tensile strength of the riveted joint.
Solution:
An inclined belt conveyor is used for loading goods. If the speed of the belt having 1500 mm width is 3 m/s, what is the volumetric capacity of the conveyor?
Solution:
Given a pair of bevel gears having the number of teeth on the pinion as 25 and the number of teeth on the gear as 40, calculate the pitch angle for the pinion. (Use a calculator to find the inverse tangent)
Solution:
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