1. When used in connection with the progress of a work, the term amount indicates the ?

total expenditure on a particular item

supplies made and services performed

value of the finished product in a manufacturing operation

none of the above

Answer: total expenditure on a particular item

Explanation:


2. When the steel bars are embedded in concrete, the concrete after setting, adheres to the surface of the bars and thus resist any force that tends to pull or push this rod. The intensity of this adhesive force is called ?

bond stress

shear stress

compressive stress

none of these

Answer: bond stress

Explanation:


3. Which of the following statement is correct ?

Diagonal tension is caused by the combined action of longitudinal tension and the transverse shearing stresses

Shear reinforcement in the form of vertical bars is known as stirrups

According to IS: 456-1978, if the shear stress is less than one-tenth of compressive stress in concrete at extreme fibre, no shear reinforcement is necessary

all of the above

Answer: all of the above

Explanation:


4. The precast concrete piles are generally used for a maximum design load of about ....... concept for large prestressed piles ?

40 tonnes

60 tonnes

80 tonnes

100 tonnes

Answer: 80 tonnes

Explanation:


5. A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is ?

6 mm dia.

8 mm dia.

10 mm dia.

12 mm dia,

Answer: 8 mm dia.

Explanation:


6. In post-tensioned pre-stressed concrete beam, the end block zone is the zone between the end of the beam and the section where ?

no lateral stresses exist

only longitudinal stresses exist

only shear stresses exist

shear stresses are maximum

Answer: only longitudinal stresses exist

Explanation:


7. For an over reinforced (singly reinforced) rectangular reinforced concrete section ?

the lever arm will be less than that for a balanced section

the maximum stress developed by steel will be equal to the allowable stress in steel

the maximum stress developed by concrete will be equal to allowable stress in concrete

none of the above

Answer: the maximum stress developed by concrete will be equal to allowable stress in concrete

Explanation:


8. The number of stirrups resisting shear force, in a reinforced beam, is given by ?

Shear force / Spacing of stirrups

Lever arm / Spacing of stirrups

Spacing of stirrups / Lever arm

Spacing of stirrups / Shear force

Answer: Lever arm / Spacing of stirrups

Explanation:


9. In a pre-stressed concrete member ?

high strength concrete should be used

low strength concrete should be used

high strength concrete and low tensile steel should be used

high strength concrete and high tensile steel should be used

Answer: high strength concrete and high tensile steel should be used

Explanation:


10. In a singly reinforced concrete beam, as the load increases ?

only concrete will resist tension

only steel bars will resist tension

both concrete and steel will resist tension

both concrete and steel will resist compression

Answer: only steel bars will resist tension

Explanation: