Description : A steel column is a medium column when the slenderness ratio is (a) >120 (b) 30 (d) None
Last Answer : (c) >30
Description : A steel column is a short column when the slenderness ratio is (a) >120 (b) 30 (d) None
Last Answer : (b)
Description : A column whose slenderness ratio is greater than 120 is known as (a) Short column (b) Long column (c) Medium column (d) Composite column
Last Answer : (b) Long column
Description : A column is said to be of medium size if its slenderness ratio is between (a) 20 and 32 (b) 32 and 120 (c) 120 and 160 (d) 160 and 180
Last Answer : (b) 32 and 120
Description : Euler’s formula is not valid for mild steel column when slenderness ratio is (a) More than 100 (b) Less than 100 (c) Less than 80 (d)More than 80
Last Answer : (c) Less than 80
Description : If the slenderness ratio for a column is 100, then it is said to be a __________ column. (a) Long (b) medium (c)short (d) big
Last Answer : (a) Long
Description : The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is (a) 240 (b) 416 (c) 360 (d) 400
Last Answer : (b) 416
Description : The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is (a) 200 (b) 240 (c) 360 (d) 416
Last Answer : (d) 416
Description : The ratio of the effective length of a column and minimum radius of gyration of its cross sectionalarea, is known (a) Buckling factor (b) Slenderness ratio (c) Crippling factor (d) None of these
Last Answer : (b) Slenderness ratio
Description : The slenderness ratio is the ratio of (a) Length of column to least radius of gyration (b) Moment of inertia to area of cross-section (c) Area of cross-section to moment of inertia (d) Least radius of gyration to length of the column
Last Answer : (a) Length of column to least radius of gyration
Description : A column is said to be of medium size if its slenderness ratio is between (A) 20 and 32 (B) 32 and 120 (C) 120 and 160 (D) 160 and 180
Last Answer : (B) 32 and 120
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 R.C.C. column is treated as long if its slenderness ratio is greater than (A) 30 (B) 35 (C) 40 (D) 50
Last Answer : Answer: Option D
Description : The most critical consideration in the design of a rolled steel column carrying axial loads is the (a) Percentage elongation at yield and the net cross-sectional area (b) Critical bending ... at ultimate load (d) Compressive strength based on slenderness ratio and gross cross-sectional area.
Last Answer : (d) Compressive strength based on slenderness ratio and gross cross-sectional area.
Description : An R.C.C. column is treated as short column if its slenderness ratio is less than (A) 30 (B) 35 (C) 40 (D) 50
Description : Slenderness ratio of a long column, is (A) Area of cross-section divided by radius of gyration (B) Area of cross-section divided by least radius of gyration (C) Radius of gyration divided by area of cross-section (D) Length of column divided by least radius of gyration
Last Answer : (D) Length of column divided by least radius of gyration
Description : The slenderness ratio of a vertical column of square cross- section of 10 cm side and 500 cm long, is (A) 117.2 (B) 17.3 (C) 173.2 (D) 137.2
Last Answer : (C) 173.2
Description : 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
Last Answer : c. 20.120 N/mm2
Description : The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known (A) Buckling factor (B) Slenderness ratio (C) Crippling factor (D) None of these
Last Answer : (B) Slenderness ratio
Description : The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is (A) 200 (B) 240 (C) 360 (D) 416
Last Answer : (D) 416
Description : If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is (A) 40 (B) 45 (C) 50 (D) 55
Description : According to IS: 4561978, minimum slenderness ratio for a short column is (A) Less than 12 (B) Less than 18 (C) Between 18 and 24 (D) More than 24
Last Answer : Answer: Option A
Description : According to IS 456, minimum slenderness ratio for a short concrete column is (a) Less than 12 (b) Between 12 and 18 (c) Between 18 and 24 (d) More than 24
Last Answer : (a) Less than 12
Description : When a column is supported throughout its length either by masonry walls or by construction on all the sides, then its slenderness ratio is (a) Infinite (b) Zero (c ) Reasonably high (d) Low
Last Answer : (b) Zero
Description : According to IS:456-2000, the minimum slenderness ratio for a short column is [ A ] Less than 12 [ B ] Between 12 and 18 [ C ] Less than 18 [ D ] Must be greater than 18
Last Answer : [ A ] Less than 12
Description : A Column is said to be short, when the slenderness ratio is [ A ] Less than 6 [ B ] Less than 12 [ C ] Less than 18 [ D ] None of the above
Last Answer : [ B ] Less than 12
Description : Slenderness ratio of the column is the ratio of [ A ] the effective length to width of column [ B ] the effective length to depth of column [ C ] the effective length to least lateral design [ D ] none of the above
Last Answer : [ C ] the effective length to least lateral design
Description : A column is said to be a short column, when (a) its length is very small (b) its cross-sectional area is small (c) the ratio of its length to the least radhis of gyration is less than 80 (d) the ratio of its length to the least radius of gyration is more than 80
Last Answer : (c) the ratio of its length to the least radhis of gyration is less than 80
Description : A long column with fixed ends can carry load as compared to cantilever column (a) 4 times (b) 8 times (c) 16 times (d) None
Last Answer : (c) 16 times
Description : A long column with fixed ends can carry load as compared to both ends hinged (a) 4 times (b) 8 times (c) 16 times (d) None
Last Answer : (a) 4 times
Description : Keeping loading same but increasing the length, normal stresses in a long column will (a) Increase (b) Decrease (c) No change (d) None
Last Answer : (b) Decrease
Description : Pure Buckling occurs in a (a) Short column (b) Medium Column (c) Long column (d) None
Last Answer : (c) Long column
Description : The Rankine formula holds good for (a) Short column (b) Long column (c) Medium column (d) Both short and long column
Last Answer : (d) Both short and long column
Description : The direct stress included in a long column is………….. as compared to bending stress. (a) More (b) Less (c) Same (d) Negligible
Last Answer : d) Negligible
Description : A column that fails due to direct stress is called (a) Short column (b) Long column (c) Medium column (d) Slender column
Last Answer : (a) Short column
Description : The slenderness ratio for masonry walls should not be more than (A) 10 (B) 20 (C) 30 (D) 40
Last Answer : Answer: Option B
Description : Maximum slenderness ratio for load-bearing masonry wall in cement mortar, as per IS code, shall not exceed. (a) 13 (b) 20 (c) 27 (d) 30
Last Answer : (c) 27
Description : In a four stroke I.C engine completing 3000rpm the natural frequency of vibration of the exhaust valve should be a. 1200 Hz b. 1000 Hz c. 600 Hz d. 120 Hz
Last Answer : b. 1000 Hz
Description : A circular shaft subjected to torsion undergoes a twist of 10in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2and if modulus of rigidity G = 0.8 x 106then the radius of the shaft should be (a) p/8 (b) p/27 (c) 18/p (d) 27/p
Last Answer : (d) 27/p
Description : A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the (a) axis of load (b) perpendicular to the axis of load (c) maximum moment of inertia (d) minimum moment of inertia
Last Answer : (d) minimum moment of inertia
Description : According to Euler’s column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends. (a) equal to (b) two times (c) four times (d) eight times
Last Answer : (c) four times
Description : When a column is subjected to an eccentric load, the stress induced in the column will be (a) direct stress only (b) bending stress only (c) shear stress only (d) direct and bending stress both
Last Answer : (d) direct and bending stress both
Description : A column of length (l) with both ends fixed may be considered as equivalent to a column of length __________ with both ends hinged. (a) l/8 (b) l/4 (c) l/2 (d) l
Last Answer : c) l/2
Description : A column with maximum equivalent length has (a) both ends hinged (b) both ends fixed (c) one end fixed and the other end hinged (d) one end fixed and the other end free
Last Answer : (d) one end fixed and the other end free
Description : The range within which a load can be applied on a rectangular column, to avoid any tensile stress,is (a) One-half of the base (b) One-fifth of the base (c) One-fourth of the base (d) One-fifth of the base
Last Answer : (b) One-fifth of the base
Description : For keeping the stress wholly compressive the load may be applied on a circular column anywherewithin a concentric circle of diameter (a) d/2 (b) d/3 (c) d/4 (d) d/8
Last Answer : (c) d/4
Description : The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, ... One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius
Last Answer : (c) One-quarter of the radius
Description : Columns of given length, cross-section and material have different values of buckling loads for different end conditions. The strongest column is one whose (a) One end is fixed and other end is hinged (b) ... (c) One end is fixed and the other end entirely free (d) Both the ends are fixed
Last Answer : (d) Both the ends are fixed
Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose endsare hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximumcrippling load will be (a) 1.288 tonnes (b) 12.88 (c) 128.8 tonnes (d) 288.0
Last Answer : (b) 12.88
Description : The equivalent length of a column fixed at both ends, is (a) 0.5 l (b) 0.7 l (c) l (d) 1.5 l
Last Answer : (a) 0.5 l