Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2 , is (A) 70 kg/sq cm (B) 80 kg/sq cm (C) 90 kg/sq cm (D) 100 kg/sq cm

Area of steel required per metre width of pavement for a length of 20 m for design wheel load
6300 kg and permissible stress in steel 1400 kg/cm2
, is
(A) 70 kg/sq cm
(B) 80 kg/sq cm
(C) 90 kg/sq cm
(D) 100 kg/sq cm
by

1 Answer

Answer :

Answer: Option C
by

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Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

Description : Interior thickness of concrete road slab for design wheel load 6300 kg and permissible flexural stress 21 kg/cm2 , is (A) 17.0 cm (B) 25.5 cm (C) 34.0 cm (D) 42.5 cm

Last Answer : Answer: Option B

A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm2 , the area of steel required, is (A) 14 cm(B) 15 cm2(C) 16 cm2(D) 17 cm

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Last Answer : Answer: Option C

If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2 , spacing of 10 mm tie bars for the longitudinal joint, is (A) 10 cm (B) 20 cm (C) 30 cm (D) 40 cm

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Last Answer : Answer: Option C

If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

Description : If permissible working stresses in steel and concrete are respectively 1400 kg/cm2 and 80 kg/cm2 and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is (A) 37 cm (B) 38 cm (C) 39 cm (D) 40 cm

Last Answer : Answer: Option D

A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2 , the Safe load on the column, should not exceed (A) 4120 kg (B) 41,200 kg (C) 412,000 kg (D) None of these

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Last Answer : Answer: Option B

If a rectangular beam measuring 10 × 18 × 400 cm carries a uniformly distributed load such that the bending stress developed is 100 kg/cm2 . The intensity of the load per metre length, is (A) 240 kg (B) 250 kg (C) 260 kg (D) 270 kg

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Last Answer : (B) 250 kg

If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is (A) 0.496 % (B) 0.596 % (C) 0.696 % (D) 0.796 %

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Last Answer : Answer: Option C

The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm2 respectively. If m = 15, the depth of its neutral axis is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm

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Last Answer : Answer: Option C

If tensile stress of a steel rod of diameter is 1400 kg/cm2 and bond stress is 6 kg/cm2 , the required bond length of the rod is (A) 30 D (B) 39 D (C) 50 D (D) 59 D

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Last Answer : (D) 59 D

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

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Last Answer : (A) 10 cm

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

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Last Answer : Answer: Option A

A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is (A) 20 cm (B) 25 cm (C) 30 cm (D) 35 cm

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A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Esteel = 2 × 106 kg/cm2 , the side of the rod, is (A) 1 cm (B) 1.5 cm (C) 2 cm (D) 2.5 cm

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Last Answer : (C) 2 cm 

While testing a cast iron beam (2.5 cm × 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is: (A) 960 kg/cm2 (B) 980 kg/cm2 (C) 1000 kg/cm2 (D) 1200 kg/cm2 Answer: Option

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Last Answer : (A) 960 kg/cm

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

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 

If At is the area of steel cross-section, t is working stress, L is width of road and W is weight of slab per square metre, the spacing of the tie bars for a longitudinal joint, is (A) (100 At × t)/WL (B) 100 At/tWL (C) (100 WAt × t)/tL (D) 100 WL/At t

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The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2 , safe shear stress 5 kg/cm2 and B.M. 24 mt, (A) Is safe in shear (B) Is unsafe in shear (C) Is over safe in shear(D) Needs redesigning

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An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is (A) 8.3 kg/cm2 (B) 7.6 kg/cm2 (C) 21.5 kg/cm2 (D) 11.4 kg/cm2

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Last Answer : Answer: Option A

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

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Last Answer : (B) 12.88

An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is (A) 49.9 kg/cm2 (B) 100 kg/cm2 (C) 250 kg/cm2 (D) 175 kg/cm

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Last Answer : Answer: Option A

If a steel rod of 20 mm diameter and 5 metres long elongates by 2.275 mm when subjected to an axial pull of 3000 kg, the stress developed, is (A) 9.5541 kg/cm2 (B) 95.541 kg/cm2 (C) 955.41 kg/cm2 (D) 9554.1 kg/cm

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Last Answer : (C) 955.41 kg/cm2

If a steel rod of 20 mm diameter and 5 metres long elongates by 2.275 mm when subjected to an axial pull of 3000 kg, the stress developed, is (A) 9.5541 kg/cm2 (B) 95.541 kg/cm2 (C) 955.41 kg/cm2 (D) 9554.1 kg/cm

Description : If a steel rod of 20 mm diameter and 5 metres long elongates by 2.275 mm when subjected to an  axial pull of 3000 kg, the stress developed, is  (A) 9.5541 kg/cm2 (B) 95.541 kg/cm2 (C) 955.41 kg/cm2 (D) 9554.1 kg/cm

Last Answer : (C) 955.41 kg/cm2

If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm2 , the length of the beam having nominal reinforcement, is (A) 8 cm (B) 6 m (C) 8 m (D) 10 m

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Last Answer : Answer: Option C

For 100 sq. m cement concrete (1 : 2: 4) 4 cm thick floor, the quantity of cement required, is (A) 0.90 m3 (B) 0.94 m3 (C) 0.98 m3 (D) 1.00 m3

Description : For 100 sq. m cement concrete (1 : 2: 4) 4 cm thick floor, the quantity of cement required, is (A) 0.90 m3 (B) 0.94 m3 (C) 0.98 m3 (D) 1.00 m3

Last Answer : (B) 0.94 m3

If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2 , the share stirrups are provided for a distance from either end where, is (A) 50 cm (B) 100 cm(C) 150 cm (D) 200 cm

Description : If the maximum shear stress at the end of a simply supported R.C.C. beam of 6 m effective span is 10 kg/cm2 , the share stirrups are provided for a distance from either end where, is (A) 50 cm (B) 100 cm (C) 150 cm (D) 200 cm

Last Answer : Answer: Option C

The minimum width of a septic tank is taken (A) 70 cm (B) 75 cm (C) 80 cm (D) 90 c

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Last Answer : (B) 75 cm

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

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Last Answer : (b) 12.88

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

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Last Answer : Answer: Option D

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Description : For M 150 mix concrete, according to I.S. specifications, local bond stress, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Last Answer : Answer: Option B

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Description : According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm

Last Answer : Answer: Option A

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Description : Permissible compressive strength of M 200 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 250 kg/cm2

Last Answer : (C) 200 kg/cm2

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Description : Permissible compressive strength of M 300 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 300 kg/cm2

Last Answer : (D) 300 kg/cm2

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Description : Permissible compressive strength of M 200 concrete grade is (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm2 (D) 250 kg/cm2

Last Answer : Answer: Option C

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Last Answer : Answer: Option C

If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is (A) 65 m (B) 70 m (C) 75 m (D) 80 m

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Last Answer : Answer: Option B

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Last Answer : (C) 120 N/mm

The minimum compressive strength of 2nd class bricks should be (A) 75 kg/cm2 (B) 90 kg/cm2 (C) 100 kg/cm2 (D) 120 kg/cm

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Last Answer : Answer: Option A

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Description : Standerd disc plough consist of steel dics of… to……. CM diameter. a. 60,90 c) 60,80 b. 70,100. d) 70,90

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The stem of a cantilever retaining wall which retains earth level with top is 6 m. If the angle of repose and weight of the soil per cubic metre are 30° and 2000 kg respectively, the effective width of the stem at the bottom, is (A) 51.5 (B) 52.5 (C) 53.5 (D) 54.5

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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

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A jet of water of cross-sectional area 20 sq. cm impinges on a plate at an angle of 60? with a velocity of 10 m/sec. Neglecting the friction between the jet and plate (density of water 1000/9.81 kgm-1 sec2 per cubic meter), the force exerted by the jet on the plate would be in the range a.15 - 20 kg b.20 - 25 kg c.5 - 10 kg d.25 - 30 kg e.10 - 15 kg

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In a concrete pavement, during summer, at and soon after mid-day, the combined stress at the interior of the slab is equal to : (a) Wheel load stress + Temperature warping stress + Sub grade resistance stress (b) Wheel load stress + Temperature warping stress – Sub grade resistant stress (c) Wheel load stress – Temperature warping stress + Sub grade resistant stress (d) Wheel load stress – Temperature warping stress − Sub grade resistant stress

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Description : In a tension test, the yield stress is 300 kg/cm2 , in the octahedral shear stress at the point is: (A) 100 kg/cm2 (B) 150 kg/cm2 (C) 200 kg/cm (D) 250 kg/cm2

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Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5(C) 7.0 (D) 7.5

Description : Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5 (C) 7.0 (D) 7.5

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A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90

Description : A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90

Last Answer : Answer: Option D

Stress may be expressed in Newtons (A) Per millimetre square (N/mm2 ) (B) Per centimetre square (N/cm2 ) (C) Per metre square (N/m2 ) (D) None of these

Description : Stress may be expressed in Newtons  (A) Per millimetre square (N/mm2 )  (B) Per centimetre square (N/cm2 )  (C) Per metre square (N/m2 )  (D) None of these 

Last Answer : (A) Per millimetre square (N/mm2 )

A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10,000 kg, the corresponding maximum shearing stress being 30 kg/cm2 . The depth of the beam is (A) 15 cm (B) 20 cm (C) 25 cm (D) 30 cm

Description : A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10,000 kg, the corresponding maximum shearing stress being 30 kg/cm2 . The depth of the beam is (A) 15 cm (B) 20 cm (C) 25 cm (D) 30 cm

Last Answer : (C) 25 cm

Dimensions of a beam need be changed if the shear stress is more than (A) 10 kg/cm2 (B) 15 kg/cm2 (C) 20 kg/cm2 (D) 25 kg/cm

Description : Dimensions of a beam need be changed if the shear stress is more than (A) 10 kg/cm2 (B) 15 kg/cm2 (C) 20 kg/cm2 (D) 25 kg/cm

Last Answer : Answer: Option C