If a beam fails in bond, then its bond strength can be increased most economically by (A) Increasing the depth of beam (B) Using thinner bars but more in number (C) Using thicker bars but less in number (D) Providing vertical stirrups

If a beam fails in bond, then its bond strength can be increased most economically by
(A) Increasing the depth of beam
(B) Using thinner bars but more in number
(C) Using thicker bars but less in number
(D) Providing vertical stirrups
by

1 Answer

Answer :

Answer: Option B
by

Related questions

When shear stress exceeds the permissible limit in a slab, then it is reduced by (A) Increasing the depth (B) Providing shear reinforcement (C) Using high strength steel (D) Using thinner bars but more in number

Description : When shear stress exceeds the permissible limit in a slab, then it is reduced by (A) Increasing the depth (B) Providing shear reinforcement (C) Using high strength steel (D) Using thinner bars but more in number

Last Answer : Answer: Option A

If the bond stress developed in a reinforced concrete beam is more than permissible value, it can be brought down by. (a) Increasing the depth of beam (b) Increasing the number of bars. (c) Decreasing the diameter of the bars (d) All of these

Description : If the bond stress developed in a reinforced concrete beam is more than permissible value, it can be brought down by. (a) Increasing the depth of beam (b) Increasing the number of bars. (c) Decreasing the diameter of the bars (d) All of these

Last Answer : (d) All of these

The centre to centre spacing of vertical stirrups, in a rectangular beam, is (a) Increased towards the centre of the span of the beam (b) Decreased towards the centre of the span of the beam. (c) Increased at the ends. (d) None of these

Description : The centre to centre spacing of vertical stirrups, in a rectangular beam, is (a) Increased towards the centre of the span of the beam (b) Decreased towards the centre of the span of the beam. (c) Increased at the ends. (d) None of these

Last Answer : (a) Increased towards the centre of the span of the beam

The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone (A) Compressive stress (B) Shear stress (C) Bond stress (D) Tensile stress

Description : The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone (A) Compressive stress (B) Shear stress (C) Bond stress (D) Tensile stress

Last Answer : Answer: Option C

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

Description : 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

Last Answer : Answer: Option D

A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is (A) 30 (B) 35 (C) 40 (D) 45

Description : A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one- ... beam, the number of shear stirrups required, is (A) 30 (B) 35 (C) 40 (D) 45

Last Answer : Answer: Option C

Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than (A) One diameter of thinner bar (B) One diameter of thicker bar (C) Twice the diameter of thinner bar (D) None of these

Description : Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than (A) One diameter of thinner bar (B) One diameter of thicker bar (C) Twice the diameter of thinner bar (D) None of these

Last Answer : Answer: Option B

Spacing of stirrups in a rectangular beam, is (A) Kept constant throughout the length (B) Decreased towards the centre of the beam (C) Increased at the ends (D) Increased at the centre of the beam

Description : Spacing of stirrups in a rectangular beam, is (A) Kept constant throughout the length (B) Decreased towards the centre of the beam (C) Increased at the ends (D) Increased at the centre of the beam

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is called a concrete pile (C) In pile which transfers the load to the soil by the friction between the pile and the surrounding soil is called friction pile (D) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

Description : Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is ... ) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

Last Answer : Answer: Option D

longitudinal bars and lateral stirrups, is (A) Stress in concrete × area of concrete (B) Stress in steel × area of steel (C) Stress in concrete × area of concrete + Stress in steel × area of steel (D) None of these

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Last Answer : Answer: Option C

The torsion resisting capacity of a given reinforced concrete section. (a) Decreases with decrease in stirrups spacing. (b) Decreases with increase in longitudinal bars. (c) Does not depend upon stirrups and longitudinal steels. (d) Increases with increase in stirrups and longitudinal steels.

Description : The torsion resisting capacity of a given reinforced concrete section. (a) Decreases with decrease in stirrups spacing. (b) Decreases with increase in longitudinal bars. (c) Does not depend upon stirrups and longitudinal steels. (d) Increases with increase in stirrups and longitudinal steels.

Last Answer : (d) Increases with increase in stirrups and longitudinal steels.

A stirrups consists of ____________diameter mildsteel bars bent round the tensile reinforcement (a) 1 to 5mm (b) 5 to 12mm (c) 12 to 18mm (d) All the above

Description : A stirrups consists of ____________diameter mildsteel bars bent round the tensile reinforcement (a) 1 to 5mm (b) 5 to 12mm (c) 12 to 18mm (d) All the above

Last Answer : (b) 5 to 12mm

Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam (A) Are curtailed if not required to resist the bending moment (B) Are bent up at suitable places to serve as shear reinforcement (C) Are bent down at suitable places to serve as shear reinforcement (D) Are maintained at bottom to provide at least local bond stress

Description : Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam (A) Are curtailed if not required to resist the bending moment (B) Are bent up at suitable ... to serve as shear reinforcement (D) Are maintained at bottom to provide at least local bond stress

Last Answer : Answer: Option C

The thermal boundary layer at NPr > 1 (A) Is thicker than hydrodynamic boundary layer (B) Is thinner than hydrodynamic boundary layer (C) And the hydrodynamic boundary layers are identical (D) Disappears

Description : The thermal boundary layer at NPr > 1 (A) Is thicker than hydrodynamic boundary layer (B) Is thinner than hydrodynamic boundary layer (C) And the hydrodynamic boundary layers are identical (D) Disappears

Last Answer : (B) Is thinner than hydrodynamic boundary layer

An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is (A) Safe in shear (B) Is safe with stirrups (C) Is safe with stirrups and inclined members (D) Needs revision of the section

Description : An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is ( ... shear (B) Is safe with stirrups (C) Is safe with stirrups and inclined members (D) Needs revision of the section

Last Answer : Answer: Option A

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

If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is (A) (L/2) (1 - 3/qmax) (B) (L/3) (1 - 5/qmax) (C) (L/2) (1 - 5/qmax) (D) (L/2) (1 - 2/qmax)

Description : If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is (A) (L/2) (1 - 3/qmax) (B) (L/3) (1 - 5/qmax) (C) (L/2) (1 - 5/qmax) (D) (L/2) (1 - 2/qmax)

Last Answer : Answer: Option C

Maximum allowable spacing of shear reinforcement for vertical stirrups is restricted to [ A ] d [ B ] 0.45 d [ C ] 0.75 d [ D ] 0.90 d

Description : Maximum allowable spacing of shear reinforcement for vertical stirrups is restricted to [ A ] d [ B ] 0.45 d [ C ] 0.75 d [ D ] 0.90 d

Last Answer : [ C ] 0.75 d

According to IS: 456-2000 spacing of vertical stirrups for shear reinforcement has been limited to [ A ] 0.75 d [ B ] 450 mm [ C ] lesser of 0.75 d or 300 mm [ D ] lesser of 0.75d or 450 mm

Description : According to IS: 456-2000 spacing of vertical stirrups for shear reinforcement has been limited to [ A ] 0.75 d [ B ] 450 mm [ C ] lesser of 0.75 d or 300 mm [ D ] lesser of 0.75d or 450 mm

Last Answer : [ C ] lesser of 0.75 d or 300 mm

The average permissible stress in bond for plain bars in tension is (A) Increased by 10% for bars in compression (B) Increased by 25% for bars in compression (C) Decreased by 10% for bars in compression (D) Decreased by 25% for bars in compression

Description : The average permissible stress in bond for plain bars in tension is (A) Increased by 10% for bars in compression (B) Increased by 25% for bars in compression (C) Decreased by 10% for bars in compression (D) Decreased by 25% for bars in compression

Last Answer : Answer: Option B

For a simply supported beam of span 15 m, the minimum effective depth to satisfy the vertical deflection limits should be (A) 600 mm (B) 750 mm (C) 900 mm (D) More than 1 m

Description : For a simply supported beam of span 15 m, the minimum effective depth to satisfy the vertical deflection limits should be (A) 600 mm (B) 750 mm (C) 900 mm (D) More than 1 m

Last Answer : Answer: Option B

When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as (A) Beam (B) Depth (C) Freeboard (D) Draft

Description : When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as (A) Beam (B) Depth (C) Freeboard (D) Draft

Last Answer : (D) Draft

In a T-beam, the vertical distance between the bottom of the flange and the centre of the tensile reinforcement is (a) Breadth of flange (b) Thickness of flange (c) Breadth of slab (d) Depth of rib

Description : In a T-beam, the vertical distance between the bottom of the flange and the centre of the tensile reinforcement is (a) Breadth of flange (b) Thickness of flange (c) Breadth of slab (d) Depth of rib

Last Answer : (d) Depth of rib

In order to achieve economy, the spacing of stirrups at mid span section---------- compared to that of support section [ A ] May be decreased [ B ] May be increased [ C ] Must be kept equal [ D ] None of the above.

Description : In order to achieve economy, the spacing of stirrups at mid span section---------- compared to that of support section [ A ] May be decreased [ B ] May be increased [ C ] Must be kept equal [ D ] None of the above.

Last Answer : [ B ] May be increased

The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is (A) 2WL/3fd² (B) 3WL/2fd² (C) 2fL/3Wd 4 (D) 3fL²/2Wd

Description : The width of a beam of uniform strength having a constant depth d length L, simply supported at the ends with a central load W is (A) 2WL/3fd² (B) 3WL/2fd² (C) 2fL/3Wd 4 (D) 3fL²/2Wd

Last Answer : (B) 3WL/2fd²

The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for maximum strength are: (A) b = 57.73 cm d = 81.65 cm (B) b = 81.65 cm d = 57.73 cm (C) b = 50.00 cm d = 50.00 cm (D) b = 40.00 cm d = 80.00 cm

Description : The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for  maximum strength are:  (A) b = 57.73 cm d = 81.65 cm  (B) b = 81.65 cm d = 57.73 cm  (C) b = 50.00 cm d = 50.00 cm  (D) b = 40.00 cm d = 80.00 cm 

Last Answer : (A) b = 57.73 cm d = 81.65 cm 

Steel bars are generally connected together to get greater length than the standard length by providing (A) Straight bar splice (B) Hooked splice (C) Dowel splice (D) All the above

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Last Answer : Answer: Option D

The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than (A) 0.15 (B) 0.12 (C) 0.30 (D) 1.00

Description : The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than (A) 0.15 (B) 0.12 (C) 0.30 (D) 1.00

Last Answer : Answer: Option B

If high yield strength deformed bars are used, the are of distribution reinforcement in slabs, should not less than. (a) 0.12% of the gross area of concrete (b) 0.15% of the gross area of concrete (c) 0.18% of the gross area of concrete (d) 0.20% of the gross area of concrete

Description : If high yield strength deformed bars are used, the are of distribution reinforcement in slabs, should not less than. (a) 0.12% of the gross area of concrete (b) 0.15% of the gross area of concrete (c) 0.18% of the gross area of concrete (d) 0.20% of the gross area of concrete

Last Answer : (a) 0.12% of the gross area of concrete

In a combined footing, in the zones where the shear stresses are less than 5 kg/cm2 , stirrups to be provided are generally (a) 2 – legged (b) 4-legged (c) 8 – legged (d) 12 legged

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Last Answer : (b) 4-legged

The diameter of the stirrups according to IS : 456-2000 should not be less than [ A ] 5 mm [ B ] 6 mm [ C ] 8 mm [ D ] 10 mm

Description : The diameter of the stirrups according to IS : 456-2000 should not be less than [ A ] 5 mm [ B ] 6 mm [ C ] 8 mm [ D ] 10 mm

Last Answer : [ B ] 6 mm

If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier (C) Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above

Description : If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less ... critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above

Last Answer : Answer: Option D

A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is (A) 2.5 (B) 2.0 (C) Less than 2 (D) Less than 2.5

Description : A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth, is (A) 2.5 (B) 2.0 (C) Less than 2 (D) Less than 2.5

Last Answer : Answer: Option A

A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than (A) 1.5 (B) 2.0 (C) 2.5 (D) 3.0

Description : A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than (A) 1.5 (B) 2.0 (C) 2.5 (D) 3.0

Last Answer : Answer: Option C

The adjustment in MB plough for increasing the depth of operation a) Vertical suction b) Horizontal suction c) Gang angle d) Disc angle Ans. a

Description : The adjustment in MB plough for increasing the depth of operation a) Vertical suction b) Horizontal suction c) Gang angle d) Disc angle Ans. a

Last Answer : ans a

t higher elevation airports the pilot should know that indicated airspeed: a. will be unchanged but ground speed will be faster b. will be higher but ground speed will be unchanged c. should be increased to compensate for the thinner air d. should be higher to obtain a higher landing speed

Description : t higher elevation airports the pilot should know that indicated airspeed: a. will be unchanged but ground speed will be faster b. will be higher but ground speed will be unchanged c. should be increased to compensate for the thinner air d. should be higher to obtain a higher landing speed

Last Answer : a. will be unchanged but ground speed will be faster

The load stress of a section can be reduced by (A) Decreasing the lever arm (B) Increasing the total perimeter of bars (C) Replacing larger bars by greater number of small bars (D) Replacing smaller bars by greater number of greater bars

Description : The load stress of a section can be reduced by (A) Decreasing the lever arm (B) Increasing the total perimeter of bars (C) Replacing larger bars by greater number of small bars (D) Replacing smaller bars by greater number of greater bars

Last Answer : Answer: Option C

If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called (A) Balanced beam (B) Under-reinforced beam (C) Over-reinforced beam (D) None of the above

Description : If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called (A) Balanced beam (B) Under-reinforced beam (C) Over-reinforced beam (D) None of the above

Last Answer : Option C

If the depth of actual axis in a beam is more than the depth of critical axis, then the beam is called (a) Over reinforced beam (b) Under-reinforced beam (c) Balanced beam (d) Deep beam

Description : If the depth of actual axis in a beam is more than the depth of critical axis, then the beam is called (a) Over reinforced beam (b) Under-reinforced beam (c) Balanced beam (d) Deep beam

Last Answer : (a) Over reinforced beam

The pitch of the main bars in a simply supported slab, should not exceed its effective depth by (A) Three times (B) Four times (C) Five times (D) Six times

Description : The pitch of the main bars in a simply supported slab, should not exceed its effective depth by (A) Three times (B) Four times (C) Five times (D) Six times

Last Answer : Answer: Option D

With reference to agriculture, what are “Smother Crops”? a Crops that are grown for grazing of harvesting for immediate or future feeding of livestock. b Crops grown to conserve the soil moisture through their ground covering foliage. c Crops grown to suppress weeds by providing dense foliage and quick growing ability. d Crops cultivated to catch the forthcoming season when main crop fails. e Crops whose culture practices allow the infestation of weeds intensively.

Description : With reference to agriculture, what are Smother Crops ? a Crops that are grown for grazing of harvesting for immediate or future feeding of livestock. b Crops grown to conserve the soil ... season when main crop fails. e Crops whose culture practices allow the infestation of weeds intensively.

Last Answer : e Crops whose culture practices allow the infestation of weeds intensively.

In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by (A) 10 % (B) 20 % (C) 30 % (D) 40 %

Description : In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by (A) 10 % (B) 20 % (C) 30 % (D) 40 %

Last Answer : (D) 40 %

The bond stress for deformed bars is more than that in plain bars by [ A ] 25% [ B ] 40% [ C ] 60% [ D ] 50%

Description : The bond stress for deformed bars is more than that in plain bars by [ A ] 25% [ B ] 40% [ C ] 60% [ D ] 50%

Last Answer : [ B ] 40%

The bond stress for plain bars in compression is more than that for bars in tension by [ A ] 25% [ B ] 40% [ C ] 60% [ D ] 50%

Description : The bond stress for plain bars in compression is more than that for bars in tension by [ A ] 25% [ B ] 40% [ C ] 60% [ D ] 50%

Last Answer : [ A ] 25%

Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively, are (a) 10, 15, 20 and 25 (b) 15, 25, 40 and 75 (c ) 20, 25, 30 and 40 (d) 20, 35, 40 and 75

Description : Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively, are (a) 10, 15, 20 and 25 (b) 15, 25, 40 and 75 (c ) 20, 25, 30 and 40 (d) 20, 35, 40 and 75

Last Answer : (b) 15, 25, 40 and 75

In a singly reinforced concrete beam, as the load increases. (a) Only concrete will resist tension (b) Only steel bars will resist tension. (c) Both concrete and steel will resist tension. (d) Both concrete and steel will resist compression.

Description : In a singly reinforced concrete beam, as the load increases. (a) Only concrete will resist tension (b) Only steel bars will resist tension. (c) Both concrete and steel will resist tension. (d) Both concrete and steel will resist compression.

Last Answer : (b) Only steel bars will resist tension.

In a singly reinforced concrete beam, if the load is vey small. (a) Only concrete will resist tension (b) Only steel bars will resist tension. (c) Both concrete & steel will resist tension. (d) Both concrete & steel will resist compression.

Description : In a singly reinforced concrete beam, if the load is vey small. (a) Only concrete will resist tension (b) Only steel bars will resist tension. (c) Both concrete & steel will resist tension. (d) Both concrete & steel will resist compression.

Last Answer : (c) Both concrete & steel will resist tension.

The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall (1) depends on the thickness of the wall (2) increases with height of the wall (3) increases with depth of the wall (4) depends on the area of the wall

Description : The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall (1) depends on the thickness of the wall (2) increases with height of the wall (3) increases with depth of the wall (4) depends on the area of the wall

Last Answer :  increases with depth of the wall

The pitch of bars of main reinforcement in slab should not exceed ________the effective depth of slab. (a) Double (b) Three times (c) Five times (d) Six times

Description : The pitch of bars of main reinforcement in slab should not exceed ________the effective depth of slab. (a) Double (b) Three times (c) Five times (d) Six times

Last Answer : (b) Three times

End anchorage of bars is taken as the greater of [ A ] Effective depth or 12 times the diameter of bar [ B ] Effective depth or 16 times the diameter of bar [ C ] Effective depth of 24 times the diameter of bar [ D ] Effective depth of 48 times the diameter of bar

Description : End anchorage of bars is taken as the greater of [ A ] Effective depth or 12 times the diameter of bar [ B ] Effective depth or 16 times the diameter of bar [ C ] Effective depth of 24 times the diameter of bar [ D ] Effective depth of 48 times the diameter of bar

Last Answer : [ A ] Effective depth or 12 times the diameter of bar