Question 2
Marks : +2 | -2
Pass Ratio : 100%
In order to prevent leakage of air in the working chamber ________ is provided.
Explanation: In order to prevent leakage of air, the arrangement of double gates is provided. The person enters the first gate, where pressure is atmospheric.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Disadvantage of using pneumatic caissons are ________
Explanation: In pneumatic caissons, the sinking of pneumatic caissons are tedious, time consuming and expensive.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
In order to assist sinking of well __________ method is used in pneumatic caissons.
Explanation: In order to assist sinking process, air pressure may be reduced for a short while. Sometimes explosive may be employed in this case, it is essential to make arrangements for the immediate removal of fall fumes.