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

1 Answer

Answer :

(C) 1 : 1 : 2 

Related questions

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

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 

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 

Description : 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

Last Answer : (B) Is decreased

Description : 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

Last Answer : (C) Remains unchanged

Description : A simply supported beam of span L carries a concentrated load W at its mid-span. The maximum  bending moment M is  (A) WL/2  (B) WL/4  (C) WL/8  (D) WL/12

Last Answer : (B) WL/4

Description : The triangular portion between any two adjacent arches and the tangent to their crowns, is (A) Haunch (B) Spandril (C) Soffit (D) Rise

Last Answer : Answer: Option B

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

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

Description : Match List-I (Type of Anti-friction bearing) with List-II (Specific Use) and select the using the code given below the Lists: [IES-2006] List-I List -II A. Self-aligning ball bearing 1. For pure axial load B. Taper roller bearing 2. For ... C D (a) 2 1 3 4 (b) 3 4 2 1 (c) 2 4 3 1 (d) 3 1 2 4

Last Answer : (c) 2 4 3 1

Description : The lintels are preferred to arches because (A) Arches require more headroom to span the openings like doors, windows etc. (B) Arches require strong abutments to withstand arch thrust (C) Arches are difficult in construction (D) All of the above

Last Answer : Answer: Option D

Description : For stairs spanning l metres longitudinally between supports at the bottom and top of a flight carrying a load w per unit horizontal area, the maximum bending moment per metre width, is (A) wl²/4 (B) wl²/8 (C) wl²/12 (D) wl²/16

Last Answer : Answer: Option D

Description : The ratio of various ingredients (cement, sand, aggregates) in concrete of grade M 200, is (A) 1 : 2 : 4 (B) 1 : 3 : 6 (C) 1 : 1½ : 3 (D) 1 : 1 : 2

Last Answer : (C) 1 : 1½ : 3

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

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

Description : A simply supported wooden beam 150 cm long and having a cross section 16 cm × 24 cm carries a  concentrated load, at the centre. If the permissible stress ft = 75 kg/cm2  and fs= 10 kg/cm2  the safe  load is  (A) 3025 kg  (B) 3050 kg  (C) 3075 kg  (D) 3100 kg 

Last Answer : (C) 3075 kg 

Description : If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is (A) w (R + T)/T (B) w (R² + T²)/T (C) w (R + T)/T (D) w (R/T)

Last Answer : Answer: Option B

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

Description : 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 

Last Answer : (C) Anywhere in the rib 

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 

Description : Keeping the instrument height as 1½ m, length of staff 4 m, the up gradient of the ground 1 in 10,  the sight on the up slope must be less than  (A) 25 cm  (B) 20 m  (C) 45 m  (D) 10 m

Last Answer : (C) 45 m 

Description : Pick up the correct statement from the following: (A) In stone arches, the stones are placed with their natural beds radial (B) In cornices, the stones are placed with their natural beds as vertical (C) In stone walls, the stones are placed with their natural beds as horizontal (D) All the above

Last Answer : Answer: Option D

Description : A_______ bearing supports the load acting along the axis of the shaft. a) Thrust b) Radial c) Longitudinal d) Transversal

Last Answer : a) Thrust

Description : A simply supported beam carries two equal concentrated loads W at distances L/3 from either support. The maximum bending moment (A) WL/3 (B) WL/4 (C) 5WL/4 (D) 3WL/12

Last Answer : (A) WL/3

Description : A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is (A) WL/P (B) WL/2P (C) WL/3P (D) WL/4P

Last Answer : Answer: Option C

Description : The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due  to flowing liquid, is  (A) ½  (B) 1  (C) 1½  (D) 2 

Last Answer : (D) 2 

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 : A simply supported uniform rectangular bar breadth b, depth d and length L carries an isolated  load W at its mid-span. The same bar experiences an extension e under same tensile load. The  ratio of the maximum deflection to the ... (A) L/d (B) L/2d (C) (L/2d)² (D) (L/3d)²

Last Answer : (C) (L/2d)

Description : The general expression for the B.M. of a beam of length l is the beam carries M = (wl/2) x - (wx²/2)  (A) A uniformly distributed load w/unit length  (B) A load varying linearly from zero at one end to w at the other end  (C) An isolated load at mid span  (D) None of these 

Last Answer : (A) A uniformly distributed load w/unit length 

Description : A simply supported beam which carries a uniformly distributed load has two equal overhangs. To  have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang  to the total length of the beam, is  (A) 0.207  (B) 0.307  (C) 0.407  (D) 0.508 

Last Answer : (A) 0.207 

Description : A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant ... inclined to the horizontal at an angle of (A) 7° (B) 10° (C) 12° (D) 17

Last Answer : (C) 12°

Description : 7-For any part of the beam, between two concentrated load Shear force diagram is a (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : Na

Description : A beam of length L supported on two intermediate rollers carries a uniformly distributed load on its entire length. If sagging B.M. and hogging B.M. of the beam are equal, the length of each overhang, is (A) 0.107 L (B) 0.207 L (C) 0.307 L(D) 0.407 L

Last Answer : (B) 0.207 L

Description : A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which  causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the  joist will be,  (A) 10 m  (B) 12 m  (C) 14 m  (D) 16 m 

Last Answer : (D) 16 m 

Description : A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm2 . If the moment of inertia of the beam is 640 cm4 , the overall depth of the beam is (A) 10 cm (B) 12 cm (C) 15 cm (D) 18 cm

Last Answer : (A) 10 cm

Description : Two concentric circular coils of ten turns each are situated in the same plane. Their radii are `20` and `40 cm` and they carry respectively `0.2` and

Last Answer : Two concentric circular coils of ten turns each are situated in the same plane. Their radii are `20` and `40 cm` ... /80)mu_(0)` D. `(25//2)mu_(0)`

Description : A horizontal load of 120 kg/mt is to be carried by a cable suspended between supports at same level and 60 mts apart. If the maximum permissible tension is 36,000 kg the required length of cable is a.63.3 mets b.62.5 mts c.60.8 mts d.107 dynes e.60.1 mts

Last Answer : e. 60.1 mts

Description : If the radii of a compound curve and a reverse curve are respectively the same, the length of common tangent (A) Of compound curve will be more (B) Of reverse curve will be more (C) Of both curves will be equal (D) None of these

Last Answer : Answer: Option C

Description : A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment?

Last Answer : A steel wire of length l has a magnetic moment M. It is bent into a semicircular arc. What is the new magnetic moment? ... `M/l` C. `(2M)/(pi)` D. `M`

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

Description : For the construction of R.C.C. slabs, columns, beams, walls, etc. the grade of concrete mix used, is (A) 1 : 3 : 6 (B) 1 : 1½ : 3 (C) 1 : 2 : 4 (D) 1 : 1 : 2

Last Answer : (C) 1 : 2 : 4

Description : For the construction of the retaining structures, the type of concrete mix to be used, is (A) 1 : 3 : 6 (B) 1 : 2 : 4 (C) 1 : 1½ : 3 (D) 1 : 4 : 8

Last Answer : Answer: Option C

Description : The item of the brick structure measured in sq.m, is (A) Reinforced brick work (B) Broken glass coping (C) Brick edging (D) Brick work in arches

Last Answer : (B) Broken glass coping

Description : The brick work is not measured in cu m in case of (A) One or more than one brick wall (B) Brick work in arches (C) Reinforced brick work (D) Half brick wall

Last Answer : (D) Half brick wall

Description : A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its  free end upward. The net deflection of the free end will be  (A) Zero  (B) (5/24) (WL3 /EI) upward  (C) (5/24) (WL3 /EI) downward  (D) None of these 

Last Answer : (B) (5/24) (WL3 /EI) upward

Description : Taper rolling supports a) Axial loads b) Thrust loads c) Both axial and thrust loads d) None of the mentioned

Last Answer : c) Both axial and thrust loads

Description : A short column (30 cm 20 cm) carries a load P1 at 4 cm on one side and another load P2at 8 cm on  the other side along a principal section parallel to longer dimension. If the extreme intensity on  either side is same, the ... to P2 will be  (A) 2/3  (B) 3/2  (C) 8/5  (D) 5/8 

Last Answer : (C) 8/5 

Description : A simply supported beam A carries a point load at its mid span. Another identical beam B carries  the same load but uniformly distributed over the entire span. The ratio of the maximum  deflections of the beams A and B, will be  (A) 2/3  (B) 3/2  (C) 5/8  (D) 8/5 

Last Answer : (D) 8/5 

Description : A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial  load W, the energy stored in the spring, is  (A) 4WD²n/d 4N (B) 4W²Dn/d 4N (C) 4W²D3n/d 4N (D) 4W²D3n²/d 4N

Last Answer : (C) 4W²D3n/d 4N

Description : For any part of a beam between two concentrated load, Bending moment diagram is a (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : (c) Line inclined to x-axis