CIVIL ENGINEERING QUESTION ANSWERS

1. In plate load test, the excavated width of test pit is ______ times the width of test plate.
(1) 5 
(2) 4
(3) 3 
(4) 2

Answer: (1) 5 
2. Suggest a most suitable foundation when the loads are heavy and clay soil is soft with a basement floor
 (1) Combined footing
 (2) Isolated footing
 (3) Raft footing
 (4) Wall footing 

Answer: (3) Raft footing

3. The process of recording the resistance to the driving of bearing tubes as a quick site exploration is
 (1) Trenching
 (2) Jacking
 (3) Sounding

 (4) Dredging
Answer: (3) Sounding

4. The ultimate load cannot be clearly recognized in case of
 (1) Local shear failure
 (2) General shear failure
 (3) Punching shear failure
 (4) None of these 
Answer: (3) Punching shear failure

5. Which of the following aggregate should not be used in the manufacture of concrete as it exhibits alkali-aggregate reaction ?
 (1) Basalt
 (2) Granite
 (3) Limestone
 (4) All of these
Answer: (3) Limestone

6. The process of reducing the moisture content from the timber in order to prevent the timber from
possible fermentation is 
(1) Sorting of timber
 (2) seasoning of timber
 (3) conservation of timber
 (4) None of these
Answer: (2) seasoning of timber

7. The required minimum crushing strength of brick for construction purpose is
(1) 2.5 MPa 
(2) 3.5 MPa
(3) 5.5 MPa 
(4) 10.5 MPa
Answer:(2) 3.5 MPa

8. The preventive ASCU treatment for timber is given against
 (1) Dampness
 (2) Fire attack
 (3) Chemical attack
 (4) Termite attack 
Answer: (4) Termite attack 

9. A load bearing brick with a compressive strength of 10 MPa having the dimensions 19 cm × 9 cm × 9 cm then the maximum loading capacity of this brick is
(1) 850 kg 
(2) 1710 kg
(3) 171 kg 
(4) 17.1 kg
Answer:(2) 1710 kg

10. Gypsum is added at the time of grinding of cement clinker for the purpose of
 (1) quick setting
 (2) delay the setting time
 (3) improve the strength
 (4) improve workability
Answer: (2) delay the setting time

11. The major cementing compound present in OPC is
 (1) Tri-calcium silicate
 (2) Di-calcium silicate
 (3) Tri-calcium aluminate
 (4) Tetra-calcium alumino ferrite
Answer: (1) Tri-calcium silicate

12. The most commonly used admixture to accelerate the setting time of concrete is
 (1) Gypsum
 (2) Calcium Carbonate
 (3) Calcium Chloride
 (4) Calcium Sulphate 
Answer: (3) Calcium Chloride