GURU MCQs provides Civil Engineering MCQs for Job Test and Interview Preparation, suitable for fresh graduates, students, and competitive exams. Most repeated civil engineering MCQs section is frequently encountered in CSS, PMS, Inspector, ASI, Sub-Inspector, Constable, FPSC, PPSC, ETEA, FIA, Police, Army, Navy, Airforce, IB, MOFA, ASF, LHC, Educators, and various other competitive exams, as well as government and private job assessments. The most common updated MCQs include Basic Civil Engineering, Building Materials, Surveying, Soil Mechanics and Foundation Engineering, Applied Mechanics, Hydraulics, Waste Water Engineering, RCC Structures Design, Irrigation, Railways, Construction Management, Theory of Structures, Estimating and Costing, Docks and Harbours, Elements of Remote Sensing, Building Construction, Concrete Technology, Advanced Surveying, Strength of Materials, Water Resources Engineering, Water Supply Engineering, Steel Structure Design, Highway Engineering, Airport Engineering, Structural Design Specifications, Tunnelling, and much more.

**181. Which of the following is NOT a type of concrete formwork?**
A. Timber formwork
B. Steel formwork
C. Plastic formwork
D. Glass formwork

**182. What is the purpose of adding air-entraining agents to concrete?**
A. To increase workability
B. To increase compressive strength
C. To improve resistance to freeze-thaw cycles
D. To reduce the setting time

**183. What is the function of superplasticizers in concrete?**
A. To increase the water-cement ratio
B. To decrease the workability
C. To decrease the setting time
D. To increase the slump without adding water

**184. Which type of concrete is used in underwater construction?**
A. Ordinary concrete
B. Lightweight concrete
C. Underwater concrete
D. Pre-stressed concrete

**185. What is the purpose of curing concrete?**
A. To increase the strength
B. To reduce the workability
C. To decrease the setting time
D. To prevent moisture loss and maintain hydration

**186. Which of the following is NOT a method of concrete curing?**
A. Ponding
B. Steam curing
C. Air drying
D. Membrane curing

**187. What is the primary purpose of steel reinforcement in concrete?**
A. To increase the tensile strength
B. To increase the compressive strength
C. To decrease the workability
D. To decrease the setting time

**188. What is the purpose of providing expansion joints in concrete structures?**
A. To prevent cracks due to shrinkage
B. To increase the compressive strength
C. To decrease the workability
D. To decrease the setting time

**189. What is the typical water-cement ratio for normal concrete?**
A. 0.1 to 0.2
B. 0.3 to 0.4
C. 0.5 to 0.6
D. 0.7 to 0.8

**190. What is the primary purpose of adding fibers to concrete?**
A. To increase the water-cement ratio
B. To decrease the workability
C. To increase the tensile strength
D. To decrease the setting time