What is a mollusk with 2 shells hinged together?

What is a mollusk with 2 shells hinged together?
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There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be in the ratio of (A) 1 : 1½ : 2 (B) 2 : 1½ : 1 (C) 1 : 1 : 2(D) None of these

Description : There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and  each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be  in the ratio of  (A) 1 ... (B) 2 : 1½ : 1  (C) 1 : 1 : 2 (D) None of these

Last Answer : (C) 1 : 1 : 2 

A three hinged arch is generally hinged at its supports and (A) At one quarter span (B) At the crown (C) Anywhere in the rib (D) None of these

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Last Answer : (C) Anywhere in the rib 

The locus of reaction of a two hinged semi-circular arch, is (A) Straight line (B) Parabola (C) Circle (D) Hyperbola

Description : The locus of reaction of a two hinged semi-circular arch, is  (A) Straight line  (B) Parabola  (C) Circle  (D) Hyperbola 

Last Answer : (A) Straight line 

For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D'. Distances AD, DD' and AD' when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is (A) 30° (B) 45° (C) 60° (D) 90

Description : For determining the support reactions at A and B of a three hinged arch, points B and Care joined  and produced to intersect the load line at D and a line parallel to the load line through A at D'.  Distances AD, DD ... reactions at A and B is  (A) 30°  (B) 45°  (C) 60°  (D) 90

Last Answer : (D) 90

An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of span 2l and rise h hinged at the crown, the horizontal reaction at the support, is (A) Wa/h (B) Wa/2h(C) 2W/ha(D) 2h/W

Description : An isolated load W is acting at a distance a from the left hand support, of a three hinged arch of  span 2l and rise h hinged at the crown, the horizontal reaction at the support, is  (A) Wa/h  (B) Wa/2h (C) 2W/ha (D) 2h/W

Last Answer : (B) Wa/2h

The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is (A) 1 (B) 2 (C) 3 (D) 4

Description : The ratio of crippling loads of a column having both the ends fixed to the column having both the  ends hinged, is  (A) 1  (B) 2  (C) 3  (D) 4 

Last Answer : (D) 4 

P = /L² is the equation for Euler's crippling load if (A) Both the ends are fixed (B) Both the ends are hinged (C) One end is fixed and other end is free (D) One end is fixed and other end is hinged

Description : P = /L² is the equation for Euler's crippling load if  (A) Both the ends are fixed  (B) Both the ends are hinged  (C) One end is fixed and other end is free  (D) One end is fixed and other end is hinged

Last Answer : (B) Both the ends are hinged

If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit length over the entire span, (A) Horizontal thrust is wl2 /8h (B) S.F. will be zero throughout (C) B.M. will be zero throughout (D) All the above

Description : If a three hinged parabolic arch, (span l, rise h) is carrying a uniformly distributed load w/unit  length over the entire span,  (A) Horizontal thrust is wl2 /8h (B) S.F. will be zero throughout  (C) B.M. will be zero throughout  (D) All the above 

Last Answer : (D) All the above 

For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust (A) Is increased (B) Is decreased (C) Remains unchanged (D) Becomes zero

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The fixed support in a real beam becomes in the conjugate beam a (A) Roller support (B) Hinged support (C) Fixed support (D) Free end

Description : The fixed support in a real beam becomes in the conjugate beam a (A) Roller support (B) Hinged support (C) Fixed support (D) Free end

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For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust (A) Is increased (B) Is decreased (C) Remains unchanged (D) Becomes zero

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Last Answer : (C) Remains unchanged

In a three hinged arch, the bending moment will be zero (A) At right hinge only (B) At left hinge only (C) At both right and left hinges (D) At all the three hinges

Description : In a three hinged arch, the bending moment will be zero (A) At right hinge only (B) At left hinge only (C) At both right and left hinges (D) At all the three hinges

Last Answer : (D) At all the three hinges

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

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) Both ... (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

A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is (A) 1250 kg (B) 125 kg (C) 750 kg (D) 2500 kg

Description : A three hinged arch is loaded with an isolated load 1000 kg at a horizontal distance of 2.5 m from the crown, 1 m above the level of hinges at the supports 10 metres apart. The horizontal thrust is (A) 1250 kg (B) 125 kg (C) 750 kg (D) 2500 kg

Last Answer : (A) 1250 kg

The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling 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 ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling load will be (A) 1.288 tonnes (B) 12.88 (C) 128.8 tonnes (D) 288.0

Last Answer : (B) 12.88

The reaction at the supports will be vertical to the plane of the support if the frame structure rests on (A) Roller supports (B) Free supports (C) Hinged supports (D) All the above

Description : The reaction at the supports will be vertical to the plane of the support if the frame structure rests  on  (A) Roller supports  (B) Free supports  (C) Hinged supports  (D) All the above 

Last Answer : (D) All the above 

A three hinged parabolic arch hinged at the crown and springing, has a horizontal span of 4.8 m and a central rise of 1 m. It carries a uniformly distributed load of 0.75 tonne per metre over half left hand span. The horizontal thrust at the support will be (A) 10.8 tonnes (B) 1.08 tonnes (C) 1.8 tonnes (D) 0.8 tonnes

Description : A three hinged parabolic arch hinged at the crown and springing, has a horizontal span of 4.8 m  and a central rise of 1 m. It carries a uniformly distributed load of 0.75 tonne per metre over half  left hand span ... A) 10.8 tonnes  (B) 1.08 tonnes  (C) 1.8 tonnes  (D) 0.8 tonnes 

Last Answer : (B) 1.08 tonnes 

A three-hinged arch is said to be: (A) Statically determinate structure (B) Statically indeterminate structure (C) A bent beam (D) None of these

Description : A three-hinged arch is said to be:  (A) Statically determinate structure  (B) Statically indeterminate structure  (C) A bent beam  (D) None of these

Last Answer : (A) Statically determinate structure 

In a three hinged arch, the third hinge is generally kept at (A) Crown of the arch (B) Midpoint of the crown and left support hinge (C) Midpoint of the crown and right support hinge (D) None of these

Description : In a three hinged arch, the third hinge is generally kept at  (A) Crown of the arch  (B) Midpoint of the crown and left support hinge  (C) Midpoint of the crown and right support hinge  (D) None of these 

Last Answer : (A) Crown of the arch

In a three hinged arch, the shear force is usually (A) Maximum at crown(B) Maximum at springing (C) Maximum at quarter points (D) Varies with slope

Description : In a three hinged arch, the shear force is usually (A) Maximum at crown (B) Maximum at springing (C) Maximum at quarter points (D) Varies with slope

Last Answer : (B) Maximum at springing

If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists. (A) Compressive force (B) Tensile force (C) Shear force (D) Bending moment

Description : If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists. (A) Compressive force (B) Tensile force (C) Shear force (D) Bending moment

Last Answer : (A) Compressive force

To prevent compressive stresses in a rigid concrete pavement, the joint provided, is (A) Expansion joint (B) Contraction joint (C) Hinged joint (D) All the above

Description : To prevent compressive stresses in a rigid concrete pavement, the joint provided, is (A) Expansion joint (B) Contraction joint (C) Hinged joint (D) All the above

Last Answer : Answer: Option D

While designing the pile as a column, the end conditions are nearly (A) Both ends hinged (B) Both ends fixed (C) One end fixed and other end hinged (D) One end fixed and other end free

Description : While designing the pile as a column, the end conditions are nearly (A) Both ends hinged (B) Both ends fixed (C) One end fixed and other end hinged (D) One end fixed and other end free

Last Answer : Answer: Option C

A wooden block hinged on post outside a door, is known (A) Cleat (B) Stop (C) Horn (D) None of these

Description : A wooden block hinged on post outside a door, is known (A) Cleat (B) Stop (C) Horn (D) None of these

Last Answer : Option A

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 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

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

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

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

A column of length 4m with both ends fixed may be considered as equivalent to a column of length ………….with both ends hinged. (a) 2 m (b) 1 m (c) 3 m (d) 6 m

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Last Answer : For a long column subjected to 1 point axial compressive load, its buckling strength will be maximum when its

.In a free moment diagram support assumption is a. Simply supported ends b.free free ends c. fixed ends d.hinged ends

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