Top 350+ Solved Concrete Technology and Design MCQ Questions Answer
Q. A beam curved in plan is designed for
a. bending moment and shear
b. bending moment and torsion
c. shear and torsion
d. bending moment, shear and torsion
Q. Pick up the correct statement from the following:
a. water cement paste hardens due to hydration
b. during hardening cement binds the aggregates together
c. cement provides strength, durability and water tightness to the concrete
d. all the above
Q. 'Ware house pack' of cement means
a. full capacity of the ware house
b. pressure exertion of the bags of upper layers
c. pressure compaction of the bags on lower layers
d. packing the ware house
Q. High carbon content in the steel causes
a. decrease in tensile strength but increase in ductility
b. increase in tensile strength but decrease in ductility
c. decrease in both tensile strength and ductility
d. increase in both tensile strength and ductility
Q. Ultimate strength of cold drawn high steel wires
a. increases with increase in diameter of bar
b. decreases with increase in diameter of bar
c. does not depend on diameter of bar
d. none of the above
Q. The cement whose strength is a little lower than the ordinary cement during the first threemonths but attains afterwards the same strength, is known as
a. low-heat portland cement
b. rapid hardening portland cement
c. portland blast slag cement
d. portland pozzolana cement
Q. The dimensions of a 35 litre forma for measuring aggregates by volume, are:
a. length 30 cm, breadth 25 cm, height 30 cm
b. length 39 cm, breadth 25 cm, height 32 cm
c. length 27 cm, breadth 27 cm, height 48 cm
d. length 220 cm, breadth 25 cm, height 40 cm
Q. Ratio of permissible stress in direct compression and bending compression is
a. less than 1
b. between 1 and 1.5
c. between 1.5 and 2.0
d. greater than 2
Q. Concrete containing
a. siliceous aggregates, has higher co-efficient of expansion
b. igneous aggregates, has intermediate coefficient of expansion
c. lime stones, has lowest co-efficient of expansion
d. all the above
Q. The lower water cement ratio in concrete, introduces
a. smaller creep and shrinkage
b. greater density and smaller permeability
c. improved frost resistance
d. all the above
Q. In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on
a. the front face in one direction
b. the front face in both directions
c. the inner face in one direction
d. the inner face in both directions
Q. The aggregate containing moisture in pores and having its surface dry, is known as
a. moist aggregates
b. very dry aggregates
c. dry aggregates
d. saturated surface dry aggregate
Q. Pick up the correct statement from the following:
a. construction joints in columns are provided a few cm below the junction of beam
b. construction joints in columns are provided at the bottom hunching
c. construction joints in beams and slabs are provided within middle third
d. all the above
Q. According to ISI recommendations, the maximum depth of stress block for balanced section of abeam of effective depth d is
a. 0.43 d
b. 0.55 d
c. 0.68 d
d. 0.85 d