For calculating the allowable stress of long columns. The empirical formula 0 y/n) (1 - a l/r), is
known as
(A) Straight line formula
(B) Parabolic formula
(C) Perry's formula
(D) Rankine's formula
Description : For calculating the allowable stress of long columns 0 y/n [1 - a (1/r)²]is the empirical formula, known as (A) Straight line formula (B) Parabolic formula (C) Perry's formula (D) Rankine's formula
Last Answer : (B) Parabolic formula
Description : For calculating the permissible stress 0 y /[(1 + a(l/r)²]is the empirical formula, known as (A) Straight line formula (B) Parabolic formula (C) Perry's formula (D) Rankine's formula
Last Answer : (D) Rankine's formula
Description : An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2 , the beam (A) Is safe in shear (B) Is safe with stirrups (C) Is safe with stirrups and inclined bars (D) Needs revision of section
Last Answer : Answer: Option D
Description : The shear stress-strain graph for a Newtonian fluid is a (A) Straight line (B) Parabolic curve (C) Hyperbolic curve (D) Elliptical
Last Answer : Answer: Option A
Description : In a reinforced concrete beam , the shear stress distribution above the neutral axis following a (a) A straight line (b) Circular curve (c) Parabolic curve (d) All the above
Last Answer : (c) Parabolic curve
Description : The stress-strain curve concrete in compression follows [ A ] a straight line [ B ] a rectangular parabolic curve [ C ] a semi circular arc [ D ] a cubic parabola
Last Answer : [ B ] a rectangular parabolic curve
Description : Maximum shear stress theory for the failure of a material at the elastic limit, is known (A) Guest's or Trecas' theory (B) St. Venant's theory (C) Rankine's theory (D) Haig's theory
Last Answer : (A) Guest's or Trecas' theory
Description : Maximum principal stress theory for the failure of a material at elastic point, is known (A) Guest's or Trecas' theory (B) St. Venant's theory (C) Rankine's theory (D) Von Mises' theory
Last Answer : (C) Rankine's theory
Description : Increase-strain curve of concrete is (a) A perfect straight line upto failure (b) Straight line up to 0.002% strain value and then parabolic upto failure (c) Nearly parabolic up to 0.002% strain ... line upto failure (d) Hyperbolic up to 0.002% strain value and then a straight line upto failure
Last Answer : (c) Nearly parabolic up to 0.002% strain value and the a straight line upto failure
Description : Maximum allowable shear stress for M25 grade concrete is [ A ] 2.5 N/mm2 [ B ] 2.8 N/mm2 [ C ] 3.1 N/mm2 [ D ] 3.5 N/mm2
Last Answer : [ C ] 3.1 N/mm2
Description : Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to (A) Very long columns (B) Long columns (C) Short columns (D) Intermediate columns
Last Answer : (D) Intermediate columns
Description : According to Rankine's formula, the minimum depth of foundation (A) h = (P/W) [(1 - sin )/(1 + sin )]² (B) h = (w/P) [(1 - sin )/(1 + sin )]² (C) h = (P/w) [(1 - sin )/(1 + tan )]² (D) h = (P/w) [(1 - tan )/(1 + tan )]²
Description : According to Rankine's formula, minimum depth of foundations, is (A) (P/w) × [(1 + sin )/(1 - )]² (B) (P/w) × [(1 - sin )/(1 + )]² (C) (P/2w) × [(1 - sin )/(1 + )]² (D) (P/w) × [(1 + sin )/(1 - )]
Last Answer : Answer: Option B
Description : If N is deviation angle the length L of a parabolic vertical curve for overtaking sight distance S, is (A) NS²/9.6 if L > S (B) NS²/9.6 if L < S (C) 2S - 9.6/N if L < S (D) Both (A) and (C)
Description : If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is (A) NS²/4.4 if L > S (B) 2S - 4.4/N if L < S (C) 2S - 4.4/N if L > S (D) Both (a) and (b)
Description : The population growth curve is (A) S-shaped curve (B) Parabolic curve (C) Circular curve (D) Straight line
Last Answer : (A) S-shaped curve
Description : For slopes of limited extent the surface of slippage, is usually along (A) A parabolic arc (B) An elliptical arc (C) A straight line (D) A circular arc
Last Answer : (D) A circular arc
Description : The phreatic line in an earth dam may be (A) Circular (B) Elliptical (C) Parabolic (D) A straight line
Last Answer : Option C
Description : Distribution of shear intensity over a rectangular section of a beam, follows: (A) A circular curve (B) A straight line (C) A parabolic curve (D) An elliptical curve
Last Answer : Answer: Option C
Description : The camber on pavements, is provided by (A) Straight line method (B) Parabolic method (C) Straight line and parabolic at crown (D) Elliptical method
Description : Camber in pavements is provided by (A) Straight line method (B) Parabola method (C) Straight at the edges and parabolic at the crown (D) All the above
Description : The correct formula for calculating super-elevation for the hill roads, is (A) e = V²/254 R (B) e = V²/225 R (C) e = V²/278 R (D) e = V²/114 R
Description : For a reinforced concrete beam section, the shape of shear stress diagram is (a) Parabolic over the whole section with maximum value at the neutral axis. (b) Parabolic above the neutral axis and rectangular below the neutral axis. (c) Linearly varying as the distance form the N.A. (d) All the above.
Last Answer : (b) Parabolic above the neutral axis and rectangular below the neutral axis.
Description : The fire demand for ascertaining the empirical formula 1136.5 [(P/10) + 10] known as (A) Kuichling's formula (B) Buston's formula (C) Freeman formula (D) Under Writers formula
Last Answer : (C) Freeman formula
Description : What is the formula for expansion stress allowable?
Last Answer : Sa = f(1.25Sc+.25Sh)
Description : An upgrade g1% is followed by a downgrade g2%. The equation of the parabolic curve of length L to be introduced, is given by (A) y = g [(g - g L] x² (B) y = [(g g L] x² (C) y = [(g - g L] x² (D) y = [(g g L] x²
Description : For calculation of economical diameter D of a pipe in metres for a discharge Q to be pumped in cumecs, Lea suggested the empirical formula (A) D = 0.22 Q (B) D = 1.22 Q (C) D = 2.22 Q (D) D = 3.22 Q
Last Answer : (B) D = 1.22 Q
Description : As per Stevenson's empirical formula, the approximate value of the height of the wave in metres is given by (A) 0.34 VF (B) 0.5 VF (C) 1.5 VF (D) 3.4 VF
Last Answer : (A) 0.34 VF
Description : Rankine’s formula is generally used when slenderness ratio lies in between (a) 0-60 (b) 0-80 (c) 0-100 (d) Any value
Last Answer : (d) Any value
Description : An organic compound (A) has a molecular weight 78 and an empirical formula CH. (A) is resistant to attack by oxidizing agents but undergoes substitution and addition reactions. X-ray analysis shows that the ... suggests that compound (A) is (a) Benzene (b) Cyclohexane (c) Toluene (d) n-Hexane
Last Answer : Benzene
Description : A square object of 4 mm is subjected to a force of 3000 N. What is the maximum allowable shear stress acting on it? a. 250.14 mm2 b. 281.25 mm2 c. 400.32 mm2 d. 500 mm2
Last Answer : b. 281.25 mm2
Description : In distillation columns, the number of bubble caps per tray primarily depends upon the (A) Allowable liquid velocity (B) Allowable gas velocity (C) Allowable gas and liquid velocities
Last Answer : (C) Allowable gas and liquid velocities
Description : If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed ... l - ) (C) y = L/2 - (l + ) (D) y = L/2 - (l - )
Description : Which of the following is the EMPIRICAL formula of dodecane? w) C5H11 x) C6H13 y) C10H22 z) C12H26
Last Answer : ANSWER: X -- C6H13
Description : If P is population of a city in thousands and Q is fire demand in litres per minute, for proper estimate of water, the Empirical formula Q = 1135 [(P/5) + 10] is suggested by (A) National Board of fire under-writers (B) Freeman (C) Kuichling (D) None of these
Last Answer : (B) Freeman
Description : Design of flexible pavements is based on (A) Mathematical analysis (B) Empirical formulae (C) A compromise of pure theory and pure empirical formula (D) None of these
Description : According to the ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30
Last Answer : a) X=30 Y=18
Description : According to ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. a) X=30 Y=18 b) X=30 Y=30 c) X=18 Y=18 d) X=18 Y=30
Description : Steel beam theory is used for (A) Design of simple steel beams (B) Steel beams encased in concrete (C) Doubly reinforced beams ignoring compressive stress in concrete (D) Beams if shear exceeds 4 times allowable shear stress
Description : If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by (A) ft .d/4fb (B) ( /4). (ft .d/fb) (C) ft .d²/fb (D) ( /4). (ft .d 3 /fb)
Description : The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is (A) 1400 kg/cm2 (B) 190 kg/cm2 (C) 260 kg/cm2 (D) 230 kg/cm
Description : The allowable shear stress in stiffened webs of mild steel beams decreases with (a) Decrease in the spacing of the stiffeners (b) Increase in the spacing of the stiffeners (c) Decrease in the effective depth (d) Increase in the effective depth
Last Answer : (b) Increase in the spacing of the stiffeners
Description : For an I beam, the shape factor is 1.12. If the allowable stress (with factor of safety in bending as 1.5) is increased by 20% for wind and earthquake loads, the modified load factor is (a) 1.10 (b) 1.25 (c) 1.35 (d) 1.40
Last Answer : (d) 1.40
Description : The allowable shear stress in the web of mild steel beams decreases with (a) Decrease in h/t ratio (b) Increase in h/t ratio (c ) Decrease in thickness (d) Increase in height Where h is the height and t is the thickness
Last Answer : (b) Increase in h/t ratio
Description : For an over -reinforced (singly reinforced )rectangular reinforced concrete section (a) The lever arm will be less than that for a balanced section (b) The maximum stress developed by concrete will be equal ... c) The maximum stress developed by steel will be equal to the allowable (d) All the above
Last Answer : (b) The maximum stress developed by concrete will be equal to allowable stress in concrete
Description : In a singly reinforced beam, if the stress in concrete reaches its allowable limit later than the steel reaches, its permissible value, the beam section is said to be (a) Under-reinforced section (b) Over-reinforced section (c) Critical section (d) Balanced section
Last Answer : (b) Over-reinforced section
Description : For a balanced section, the tensile stress in the reinforcement [ A ] reaches its allowable stress [ B ] is always less than its allowable stress [ C ] may be greater than its allowable stress [ D ] none of the above
Last Answer : [ A ] reaches its allowable stress