Cylinders & Pressure Vessels MCQ Exam Questions - Set 02 - ObjectiveBooks
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Cylinders & Pressure Vessels MCQ Exam Questions - Set 02

Practice Test: Question Set - 02


1. In thin cylinders, the longitudinal stress is,
    (A) 2 (circumferential stress)
    (B) 1/2 (circumferential stress)
    (C) 1/4 (circumferential stress)
    (D) 4 (circumferential stress)

2. While designing pressure vessels according to ‘Code for unfired vessel IS-2825’, the design pressure is taken as
    (A) 1.05 (maximum operating pressure) 
    (B) 1.5 (maximum operating pressure) 
    (C) 2 (maximum operating pressure) 
    (D) 1.3 (maximum operating pressure) 

3. The thickness of thin cylinder is determined on the basis of,
    (A) Radial stress 
    (B) Longitudinal stress
    (C) Circumferential stress 
    (D) Principal shear stress

4. In thick cylinders, the tangential stress across the thickness of cylinder
    (A) Remains uniform throughout
    (B) Varies from internal pressure at the inner surface to zero at the outer surface
    (C) Varies from maximum value at the inner surface to minimum value at the outer surface 
    (D) Varies from maximum value at the outer surface to minimum value at the inner surface

5. The thickness of thick cylindrical shell with closed ends and made of brittle material is determined by,
    (A) Lame’s equation 
    (B) Clavarino’s equation
    (C) Birnie’s equation 
    (D) Barlow’s equation

6. A gasket is made of,
    (A) Asbestos or cork 
    (B) Lead, copper or aluminum
    (C) Vulcanized rubber 
    (D) Any one of the above 

7. Class 1 pressure vessels are to be designed according to ‘Code for unfired vessel IS-2825’ when,
    (A) Hydrocyanic acid, carbonyl chloride or mustard gas is stored 
    (B) Operating temperature is more than -20°C
    (C) Liquefied petroleum gas is stored 
    (D) Thickness of shell is less than 38 mm 

8. Weld joint efficiency is maximum when the pressure vessel is welded by
    (A) Single-welded butt joint with backing strip 
    (B) Single-welded butt joint without backing strip 
    (C) Double-welded butt joint with full penetration 
    (D) None of the above 

9. Autofrettage is achieved by,
    (A) Compound cylinder
    (B) Overloading the cylinder before putting it in service
    (C) Winding a wire under tension around the cylinder
    (D) Any one of the above methods 

10. In thick cylinders, the radial stress across the thickness of cylinder
    (A) Remains uniform throughout
    (B) Varies from internal pressure at the inner surface to zero at the outer surface
    (C) Varies from maximum value at the inner surface to minimum value at the outer surface
    (D) Varies from maximum value at the outer surface to minimum value at the inner surface

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