Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter indicates its(A) Inner diameter(B) Outer diameter(C) Thickness(D) Neither inner nor outer diameter

Nominal Pipe Size (NPS) of a pipe less than 12 inches in diameter
indicates its
(A) Inner diameter
(B) Outer diameter
(C) Thickness
(D) Neither inner nor outer diameter
by

1 Answer

Answer :

(D) Neither inner nor outer diameter
by

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Last Answer : (a) 43 to 45

What is the shear stress acting on the outer surface of a hollow shaft subjected to a torque of 100 Nm?(The inner and outer diameter of the shaft is 15 mm and 30 mm respectively.) a. 50.26 N/mm2 b. 40.24 N/mm2 c. 20.120 N/mm2 d. 8.74 N/mm2

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The torque transmitted by a hollow shaft of outer diameter (D) and inner diameter (d) (a)π/4fs(D2-d2)/D (b) π/4fs(D3-d3)/D (c) π/4fs(D4-d4)/D (d) π/4fs(D4-d4)/D

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The ratio of strength of a hollow shaft to that of a solid shaft subjected to torsion if both are of the same material and of the same outer diameters, the inner diameter of hollow shaft being half of the outer diameter is a. 15/16 b. 16/15 c. 7/8 d. 8/7

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What size piping flanges and flanged fittings are addressed by ASME B16.5? a) 1/2" to 24" NPS. b) 1" to 36" NPS. c) 1/4" to 36" NPS. d) 1/4 to 48" NPS.

Description : What size piping flanges and flanged fittings are addressed by ASME B16.5? a) 1/2" to 24" NPS. b) 1" to 36" NPS. c) 1/4" to 36" NPS. d) 1/4 to 48" NPS.

Last Answer : a) 1/2" to 24" NPS.

Velocity head on sudden enlargement in a horizontal pipe is converted into __________ head. (A) Elevation (B) Pressure (C) Both (A) & (B) (D) Neither (A) nor (B)

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Fanning friction factor for laminar flow of fluid in a circular pipe is (A) Not a function of the roughness of pipe wall (B) Inversely proportional to Reynolds number (C) Both (A) & (B) (D) Neither (A) nor (B)

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For lapped joints, which of the following is the minimum finished height of face? a) Not less than the nominal pipe wall. b) Not less than .25". c) At least .060". d) 3/8".

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If h1 = inner film co-efficient and /h2 = outer film co-efficient, then the overall heat transfer co-efficient is (A) Always less than h1 (B) Always between h1 and h2 (C) Always higher than h2 (D) Dependent on metal resistance

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If d is the diameter of the pipe, p is the total internal pressure, f is the permissible tensile stress and n is the effective of the joint, the thickness t of metal pipe, is (A) n (pd/2f) (B) (1/n) (pd/2f) (C) (1/n) (pd/3f) (D) (1/n) (pf/d

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