GATE CE 2022 Toppers Quiz 24

Find the rotational stiffness factor at joint P for the figure given. Length of each member = L, flexural rigidity = EI.

What is the ratio of fixed end moment of BC to M_BC of the following frame if rotation at joint B is ?

Determine the rotation of the joint Q for the structure shown. The flexural rigidity and length of all the members are EI and L respectively.

Determine the rotation at joint Q.

A coal containing 3 % sulphur is burnt completely to ash in a cement kiln @ 30 kg/min. The sulphur content in the ash is found to be 5% of initial amount of sulphur in the coal fed to the kiln. Calculate the annual rate of SO₂ emission from the kiln in tonnes/year.

A machine in a steel plate fabricating industry is found to be producing a sound level of 50dB. In the expansion plans one more such machine needs to be added. What will be the combined noise level?

If two sounds of 50dB and 60 dB are meeting then what will be the final sound level in dB?