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

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
by

1 Answer

Answer :

(c) Less than 80
by

Related questions

Rankine’s formula is generally used when slenderness ratio lies in between (a) 0-60 (b) 0-80 (c) 0-100 (d) Any value

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

A steel column is a medium column when the slenderness ratio is (a) >120 (b) <30 (c) >30 (d) None

Description : A steel column is a medium column when the slenderness ratio is (a) >120 (b) 30 (d) None

Last Answer : (c) >30

A steel column is a long column when the slenderness ratio is (a) >120 (b) <30 (c) >30 (d) None

Description : A steel column is a long column when the slenderness ratio is (a) >120 (b) 30 (d) None

Last Answer : (a) >120

A steel column is a short column when the slenderness ratio is (a) >120 (b) <30 (c) >30 (d) None

Description : A steel column is a short column when the slenderness ratio is (a) >120 (b) 30 (d) None

Last Answer : (b)

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

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

A column whose slenderness ratio is greater than 120 is known as (a) Short column (b) Long column (c) Medium column (d) Composite column

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 strength and axial yield strength of material (c) Buckling strength based on the net area of the section and percentage elongation at ultimate load (d) Compressive strength based on slenderness ratio and gross cross-sectional area.

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.

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

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

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

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

The shaft are made of (a) Mild steel (b) alloy steel (c) Cooper alloys (d) Any of these

Description : The shaft are made of (a) Mild steel (b) alloy steel (c) Cooper alloys (d) Any of these

Last Answer : (d) Any of these

The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.

Description : The shafts are made of a. mild steel b. alloy steel c. copper alloys d. cast iron.

Last Answer : d. cast iron.

When mild steel is subjected to a tensile load, its fracture will conform to (a) Star shape (b) Granular shape (c) Cup and cone shape (d) Fibrous shape

Description : When mild steel is subjected to a tensile load, its fracture will conform to (a) Star shape (b) Granular shape (c) Cup and cone shape (d) Fibrous shape

Last Answer : (c) Cup and cone shape

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 : 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

Last Answer : Answer: Option D

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

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

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

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

Euler's formula states that the buckling load for a column of length , both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are and respectively, is given by the relation (A) P = ²EI/l² (B) P = /EI (C) P = /l² (D) P = ²EI/l

Description : Euler's formula states that the buckling load for a column of length , both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are and respectively, is given by the relation (A) P = ²EI/l² (B) P = /EI (C) P = /l² (D) P = ²EI/l

Last Answer : (A) P = ²EI/l²

The Rankine formula holds good for (a) Short column (b) Long column (c) Medium column (d) Both short and 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

An R.C.C. column is treated as long if its slenderness ratio is greater than (A) 30 (B) 35 (C) 40 (D) 50

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

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

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 

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

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

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

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

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

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

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

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

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 : 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

Last Answer : Answer: Option D

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

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

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

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

The direct stress included in a long column is………….. as compared to bending stress. (a) More (b) Less (c) Same (d) Negligible

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

Two concentric springs with stiffness equal to 100 N/mm and 80 N/mm respectively, when subjected to load of 900N will deflect by a. 9mm b. 11.25 mm c. 5mm d. 31.5 mm

Description : Two concentric springs with stiffness equal to 100 N/mm and 80 N/mm respectively, when subjected to load of 900N will deflect by a. 9mm b. 11.25 mm c. 5mm d. 31.5 mm

Last Answer : c. 5mm

Compute the maximum shearing stress developed in a phosphor bronze spring having mean diameter of 200 mm and consisting of 24 turns of 20-mm diameter wire when the spring is stretched 100 mm. and G = 42 GPa. a. 51 MPa b. 31.89 MPa c. 80 MPa d. 70 MPa

Description : Compute the maximum shearing stress developed in a phosphor bronze spring having mean diameter of 200 mm and consisting of 24 turns of 20-mm diameter wire when the spring is stretched 100 mm. and G = 42 GPa. a. 51 MPa b. 31.89 MPa c. 80 MPa d. 70 MPa

Last Answer : b. 31.89 MPa

A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1o. The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of rigidity is 80 GPa. The outside diameter (in mm) of the shaft is _______. (a) 43 to 45 (b) 50to 60 (c) 70 to 80 (d) 85 to 100

Description : A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1o. The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of ... shaft is _______. (a) 43 to 45 (b) 50to 60 (c) 70 to 80 (d) 85 to 100

Last Answer : (a) 43 to 45

For bending equation to be valid, radius of curvature of the beam after bending should be a. Equal to its transverse dimensions b. Infinity c. Very large compared to its transverse dimensions d. Double its transverse dimensions

Description : For bending equation to be valid, radius of curvature of the beam after bending should be a. Equal to its transverse dimensions b. Infinity c. Very large compared to its transverse dimensions d. Double its transverse dimensions

Last Answer : c. Very large compared to its transverse dimensions

Cylinder having inner diameter to wall thickness ratio less than 15 are a) Thin cylinders b) Thick Cylinders c) Moderate cylinders d) none of the above

Description : Cylinder having inner diameter to wall thickness ratio less than 15 are a) Thin cylinders b) Thick Cylinders c) Moderate cylinders d) none of the above

Last Answer : b) Thick Cylinders

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

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

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

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

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

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

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

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

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

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

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

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

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, is (a) One-half of the radius (b) One-third of the radius (c) One-quarter of the radius (d) One-fifth of the radius

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

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) Both ends are hinged or pin jointed (c) One end is fixed and the other end entirely free (d) Both the ends are fixed

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

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

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

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

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

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

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