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.

**131. The thickness of slab is usually taken as:**
A. 100 mm
B. 125 mm
C. 150 mm
D. 200 mm

**132. The minimum width of landing should be:**
A. 600 mm
B. 900 mm
C. 1200 mm
D. 1500 mm

**133. The minimum diameter of bars in a column should not be less than:**
A. 8 mm
B. 10 mm
C. 12 mm
D. 16 mm

**134. The minimum grade of concrete used in RCC work is:**
A. M15
B. M20
C. M25
D. M30

**135. The minimum cover for reinforcement in a RCC slab not exposed to weather should be:**
A. 10 mm
B. 15 mm
C. 20 mm
D. 25 mm

**136. The total depth of stair is divided into number of equal parts of riser and tread. The number of parts for a comfortable stair is:**
A. 15
B. 18
C. 20
D. 25

**137. In a cantilever beam of uniform strength carrying uniformly distributed load, the maximum bending moment occurs at:**
A. free end
B. fixed end
C. mid-span
D. support

**138. The formwork for column is generally removed after:**
A. 24 hours
B. 48 hours
C. 7 days
D. 14 days

**139. In the design of reinforced concrete beams, the shear stress is:**
A. directly proportional to bending moment
B. inversely proportional to bending moment
C. independent of bending moment
D. none of the above

**140. The minimum thickness of the slab covering the reinforcement in a RCC slab should not be less than:**
A. 15 mm
B. 20 mm
C. 25 mm
D. 30 mm