A steel cylinder of 1 metre diameter is carrying a fluid under a necessary wall thickness, if the tensile stress is not to exceed 1 A steam boiler, 1.2 metre in diameter, generates steam at a gau the efficiency of the riveted joints as 75%, find the thickness o stress = 385 MPa and factor of safety = 5. Find the thickness of a cast iron cylinder 250 mm in diameter t maximum tensile stress for cast iron as 14 MPa. A pressure vessel has an internal diameter of 1 m and is to be su
A steel cylinder of 1 metre diameter is carrying a fluid under a necessary wall thickness, if the tensile stress is not to exceed 1 A steam boiler, 1.2 metre in diameter, generates steam at a gau the efficiency of the riveted joints as 75%, find the thickness o stress = 385 MPa and factor of safety = 5. Find the thickness of a cast iron cylinder 250 mm in diameter t maximum tensile stress for cast iron as 14 MPa. A pressure vessel has an internal diameter of 1 m and is to be su
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
![1. A steel cylinder of 1 metre diameter is carrying a fluid under a pressure of 10 N/mm². Calculate the
necessary wall thickness, if the tensile stress is not to exceed 100 MPa.
[Ans. 50 mm]
2. A steam boiler, 1.2 metre in diameter, generates steam at a gauge pressure of 0.7 N/mm². Assuming
the efficiency of the riveted joints as 75%, find the thickness of the shell. Given that ultimate tensile
stress = 385 MPa and factor of safety = 5.
[Ans. 7.3 mm]
3. Find the thickness of a cast iron cylinder 250 mm in diameter to carry a pressure of 0.7 N/mm². Take
maximum tensile stress for cast iron as 14 MPa.
[Ans. 6.25 mm]
4.
A pressure vessel has an internal diameter of 1 m and is to be subjected to an internal pressure of 2.75
N/mm² above the atmospheric pressure. Considering it as a thin cylinder and assuming the efficiency
of its riveted joint to be 79%, calculate the plate thickness if the tensile stress in the material is not to
exceed 88 MPa.
[Ans. 20 mm]
5.
A spherical shell of 800 mm diameter is subjected to an internal pressure of 2 N/mm². Find the
thickness required for the shell if the safe stress is not to exceed 100 MPa.
[Ans. 4 mm]
6.
A bronze spherical shell of thickness 15 mm is installed in a chemical plant. The shell is subjected to
an internal pressure of 1 N/mm². Find the diameter of the shell, if the permissible stress for the bronze
is 55 MPa. The efficiency may be taken as 80%.
[Ans. 2.64 m]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa003d6d9-f4f5-4821-8dee-d6b7e34e9e85%2F80283930-bd13-48c5-ba93-1c908145ebd1%2F2ddgjnj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A steel cylinder of 1 metre diameter is carrying a fluid under a pressure of 10 N/mm². Calculate the
necessary wall thickness, if the tensile stress is not to exceed 100 MPa.
[Ans. 50 mm]
2. A steam boiler, 1.2 metre in diameter, generates steam at a gauge pressure of 0.7 N/mm². Assuming
the efficiency of the riveted joints as 75%, find the thickness of the shell. Given that ultimate tensile
stress = 385 MPa and factor of safety = 5.
[Ans. 7.3 mm]
3. Find the thickness of a cast iron cylinder 250 mm in diameter to carry a pressure of 0.7 N/mm². Take
maximum tensile stress for cast iron as 14 MPa.
[Ans. 6.25 mm]
4.
A pressure vessel has an internal diameter of 1 m and is to be subjected to an internal pressure of 2.75
N/mm² above the atmospheric pressure. Considering it as a thin cylinder and assuming the efficiency
of its riveted joint to be 79%, calculate the plate thickness if the tensile stress in the material is not to
exceed 88 MPa.
[Ans. 20 mm]
5.
A spherical shell of 800 mm diameter is subjected to an internal pressure of 2 N/mm². Find the
thickness required for the shell if the safe stress is not to exceed 100 MPa.
[Ans. 4 mm]
6.
A bronze spherical shell of thickness 15 mm is installed in a chemical plant. The shell is subjected to
an internal pressure of 1 N/mm². Find the diameter of the shell, if the permissible stress for the bronze
is 55 MPa. The efficiency may be taken as 80%.
[Ans. 2.64 m]
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