|
1) Which equation is used to calculate thickness of an alloy steel cylinder with open ends? a. Clavarino's equation b. Birnie's equation c. Lame's equation d. None of the above
|
||||
|
2) Why is autofrettage process used in pressure vessels? a. Increase fatigue lifetime b. To enhance carrying capacity c. To introduce compressive residual stress in them d. All of the above
|
||||
|
3) Due to which effect, compressive residual stress of strain-hardening model is smaller than elastic-perfectly plastic model? a. Seeback effect b. Peltier effect c. Bauschinger effect d. None of the above
|
||||
|
4) Claviro's equation is applicable to cylinders with _______ a. close ends b. open ends c. both a. and b. d. none of the above
|
||||
|
5) Which equation is used to determine wall thickness for brittle materials? a. Brinie's equation b. Claviro's equation c. Lame's equation d. All of the above
|
||||
|
6) What is the weld joint efficiency if pressure vessel is fabricated with single full fillet lap joint? a. 1.0 b. 0.55 c. 0.65 d. 0.85
|
||||
|
7) Which of the following is not an unfired pressure vessel? a. Heat exchanger b. Storage vessels c. Steam boilers d. None of the above
|
||||
|
8) In unfired pressure vessels, category A consists of _________ a. joints connecting flanges and flat heads b. welded joints connecting nozzles with main shell c. circumferential welded joints joints d. longitudinal welded joints
|
||||
|
9) Which of the following is not expressed by primary design equation? a. Functional parameters b. Material parameters c. Geometrical parameters d. None of the above
|
||||
|
10) What does Ψ mean in Lagrange's equation (LE = U + λΨ)? a. Lagrange's multipliers b. Functional constraints c. Multiple variable objective d. None of the above
|
||||
