Civil Engineering MCQ Part 4

 

CIVIL ENGINEERING MCQ – PART:04

1.      A reinforced concrete, four-side-supported slab panel  is
a. a one-way slab. b. a two-way slab.
c. a four-way slab. d. (a) or (b).
e. (b) or (c).

2.      A reinforced-concrete, four-side-supported slab panel measuring 15 ft * 22 ft is
a. a one-way slab. b. a two-way slab.
c. a four-way slab. d. (a) or (b).
e. none of the above.

3.      A reinforced-concrete, four-side-supported slab panel measuring
15 ft * 32 ft is
a. a one-way slab. b. a two-way slab.
c. a four-way slab. d. (a) or (b).
e. none of the above.

4.       In a band beam reinforced-concrete floor, the beams are a. narrow and deep.

b. wide and shallow.
c. located at a spacing of 8 to 10 ft on center.
d. unnecessary.

5.      A band beam floor is generally more economical than a beam-and girder floor because
a. it requires a smaller quantity of concrete.
b. it requires a smaller quantity of reinforcement.
c. its formwork is more economical.
d. none of the above.

6.      A standard-module one-way joist floor is constructed using pans that are
a. 20 in. wide. b. 30 in. wide.
c. 40 in. wide. d. (a) or (b).
e. (b) or (c).

7.      Based on structural considerations only, the thickness of the slab in a standard-module one-way joist floor need not exceed
a. 2 in. to 21
2 in. b. 3 in. to 31 2 in.
c. 4 in. to 5 in. d. 5 in. to 6 in.

8.      Pans used as formwork for one-way joist floors have a
a. U-shaped profile. b. Z-shaped profile.
c. dome profile. d. any one of the above.
e. none of the above.

9.     A wide-module one-way joist floor is constructed using pans that are
a. 66 in. wide. b. 60 in. wide.
c. 53 in. wide. d. (a) or (b).
e. (a) or (c).

10.  In a one-way joist floor, the supporting beams run in one direction and the joists run in the other direction. If the spans in the two directions are unequal, the beams should preferably span along the
a. shorter direction. b. longer direction.

11.  The formwork used for a waffle slab has a
a. U-shaped profile. b. Z-shaped profile.
c. dome profile. d. any one of the above.
e. none of the above.

12.  Using standard formwork components for a waffle slab, the center to-center distance between waffles (voids) is
a. 3 ft, 4 ft, or 5 ft. b. 2 ft, 4 ft, or 6 ft.
c. 4 ft, 5 ft, or 6 ft. d. 5 ft, 6 ft, and 7 ft.
e. none of the above.

13.  A flat slab floor consists of
a. a slab of constant thickness.
b. a slab with beams on all four sides of the slab panel.
c. a slab with drop panels at each column.
d. none of the above.

14.  A flat plate floor consists of
a. a slab of constant thickness.
b. a slab with beams on all four sides of the slab panel.
c. a slab with drop panels at each column.
d. none of the above.

15.  Commonly used beamless concrete floors are

a. one-way and two-way joist floors.
b. flat-plate and flat-slab floors.
c. beam-and-girder floors.
d. all of the above.

16.  In a posttensioned elevated concrete floor, prestressing tendons are combined with conventional steel reinforcement.

a. True b. False

17.  The primary reason for using posttensioned concrete floors is to
a. reduce or prevent the cracking of concrete.
b. improve safety against failure.
c. reduce floor depth.
d. reduce or prevent corrosion of reinforcement.
e. reduce formwork cost.

18.  The strength of concrete used in precast concrete members is
generally
a. 1 to 2 ksi. b. 2 to 3 ksi.
c. 3 to 4 ksi. d. 4 to 5 ksi.
e. 5 to 6 ksi.

19.  Portland cement used in precast concrete members is generally
a. Type V. b. Type IV.
c. Type III. d. Type II.
e. Type I.

20.  Architectural precast concrete refers to concrete members used in
building interiors.
a. True b. False