bhavikatti

MULTIPLE-CHOICE QUESTIONS I. Select correct option/options from the following questions. (1 to 196)

1. Minimum grade of concrete for moderate exposure with normal weight aggregates is (a) M 15 (b) M 25 20 (c) M (d) M 35 2. Concrete surfaces exposed to sea water spra is considered exposure condition (a) extreme (b) !er se!ere (c) se!ere (d) moderate 3. Concrete surface buried under non"aggressi!e soil#groundwater is considered exposed to condition (a) moderate (b) se!ere (c) !er se!ere (d) extreme $. M $5 concrete is regarded as (a) ordinar concrete (b) standard concrete (c) high strength concrete (d) ultra"high strength concrete 5. M %5 concrete is regarded as (a) ordinar concrete (b) standard concrete (c) high strength concrete (d) ultra"high strength concrete

r DOWNLOADED FR OM www. Ci v i l Engg For Al l . c om &. 'or strength calculations and ser!iceabilit calculations oisson*s ratio of concrete is ta+e especti!el as

(a) 0.15 and 0.1 (b) 0.1 and 0.15 (c) 0.2 and 0.15 (d) 0.15 and 0.2

%. ,n the absence of data the approximate !alue of the total shrin+age strain ma be ta+en as (a) 0.0001 (b) 0.0003 (c) 0.001 (d) -. ,f0.003 age of loading on concrete structure is 2- das the creep coefficient ma be ta+en as (a) 2.2 (b) 2.0 (c) 1.(d) 1.& . /ield strength of mild steel is (a) 250 #mm (b) $15 #mm (c) 500 #mm 2 2 2

(c) $-0 #mm 2

10. he /oung*s modulus for all grades of steel is (a) 1-0 +#mm (b) 200 +#mm (c) 210 +#mm (d) 200 +#cm 2 2 2 2

11. hich one of the following is not the diameter of mar+et form of reinforcing bar (a) 1& mm (b) 1- mm (c) 20 mm (d) 22 mm 12. 4ars larger than  diameter should not be bundled. (a) 22 mm (b) 25 mm

(c) 2- mm (d) 32 mm 13. hich one of the following is not the diameter of the mar+et form of reinforcing bars (a) 2- mm (b) 30 mm mm (c) 32

1$. ,f a roof is sloping at 126 imposed load to be considered in the design is (a) 1.5 +#m (b) 1.0 +#m (c) 0.%5 +#m (d) 0.%1 +#m 2 2

n i 2 2

15. ,n design of a flat 7.C.C. roof without access except for maintenance imposed load to be considered is (a) 1.5 +#m (b) 1.25 +#m (c) 1.0 +#m (d) 0.%5 +#m 2 2 2 2

1&. ,n the design of a se!en"store building while designing the columns of 5th store reduction i mposed loads on floor is (a) 08 (b) 108

(c) 208 (d) 308 1%. ,n designing a structure at a height 25 m in a region with wind !elocit 9 the wind pressure to be considered in (a) 0.$5 9 (b) 0.5 9 (c) 0.& 9 (d) 0.%5 9 2 2 2 2

1-. :pto a height of  wind pressure on a structure is considered to be uniform. (a) 20 m

f i (b) 30 m (c) $0 m (d) 50 m 1. ;now load need not be considered in the design of structures in cold regions if slope of the roo s more than (a) 256 (b) 306 (c) $56 (d) &06 20. hich one of the following is not correct load combination in structural design (a) DL < WL (b) DL < WL < IL (c) DL < WL < SL DOWNLOADED FR OM www. Ci v i l Engg For Al l . c om (d) DL < WL < IL < SL where DL = dead load WL = wind load IL = imposed load

SL = wind load 21. > structure design should (a) sustain all loads (b) sustain the deformation (c) should ha!e ade?uate resistance to misuse and fire (d) the wor+ing abo!e stress method of 7.C.C. design which one of the 22. all ,n the following is correct (a) ;hear deformations are neglected. (b) ;tress"strain relation is linear both for steel and concrete. (c) he modular ratio between steel and concrete remains constant. (d) >ll the abo!e. 23. ,n the wor+ing stress method of 7.C.C. design factor of safet used for concrete and steel are respecti!el (a) 3 and 1.-5 (b) $ and 1.-5 (c) $ and 2 (d) 3 and 1.5 2$. ,n the wor+ing stress method of 7.C.C. design modular ratio between steel and concrete used is (a) (b) (c) (d) where s is permissible compressi!e stress in bending for concrete. 25. ,n wor+ing stress method of design factor of safet is bc

>. 4. (a) 4oth > and 4 are true (b) > is true and 4 is false (c) > is false and 4 is true (d) 4oth > and 4 are false 2&. he failure criteria in the ultimate load method of design is (a) stress DOWNLOADED FR OM www. Ci v i l Engg For Al l . c om (b) strain (c) load (d) all the abo!e

2%. @imit state method of 7.C.C. design ta+es care of structure >. ,ts safet 4. ,ts fitness throughout its designed life. ;elect our answer code from the list gi!en belowA (a) 4oth > and 4 are true (b) > is but is not (c) > is true not true but 4 true is true (d) 4oth > and 4 are not true. 2-. @imit state method is based on probable >. @oad 4. ;trength. ;elect our answer code from the list gi!en belowA (a) 4oth > and 4 are true (b) > is true and 4 is false (c) > is false and 4 is true (d) 4oth > and 4 are false 2. Characteristic load means (a) maximum load (b) mean load (c) mean load < 5 8 of standard de!iation (d) mean load < 10 8 of standard de!iation 30. Characteristic strength is (a) minimum assured strength (b) minimum assured strength