🧱 KPSC JE Civil – Solved Questions (Part 9: Q161–Q180)

This part contains questions 161 to 180 with complete option-wise explanations.

📘 Q161. The main function of admixtures in concrete?

• (1) Improve workability – Correct.
• (2) Reduce strength – No, strength is usually improved.
• (3) Increase bleeding – Incorrect.
• (4) Increase curing time – Not a purpose.

📘 Q162. Slump test measures?

• (1) Workability of concrete – Correct.
• (2) Strength – No.
• (3) Durability – No.
• (4) Shrinkage – No.

📘 Q163. The common brick size in India (modular)?

• (1) 190 × 90 × 90 mm – Correct.
• (2) 200 × 100 × 100 mm – Not modular.
• (3) 230 × 110 × 70 mm – Nominal including mortar.
• (4) 250 × 125 × 75 mm – No.

📘 Q164. Which IS code is for plain & reinforced concrete?

• (1) IS 456 – Correct.
• (2) IS 383 – Aggregates.
• (3) IS 10262 – Mix design.
• (4) IS 516 – Tests.

📘 Q165. The structure used to store water for 1–2 days?

• (1) Balancing reservoir – Correct.
• (2) Forebay – Hydropower.
• (3) Impounding reservoir – Large storage.
• (4) Flood reservoir – No.

📘 Q166. Maximum super-elevation in India for highways?

• (1) 1 in 6 – Very steep.
• (2) 1 in 12 – No.
• (3) 1 in 16 – No.
• (4) 1 in 15 (7%) – Correct.

📘 Q167. Degree of curve is defined as?

• (1) Angle subtended by 30 m arc – Correct (India).
• (2) Angle at center by chord – No.
• (3) Radius/2 – Incorrect.
• (4) Slope of tangent – No.

📘 Q168. Curing is done to?

• (1) Maintain moisture – Correct.
• (2) Reduce density – No.
• (3) Increase shrinkage – No.
• (4) Increase permeability – No.

📘 Q169. A UTM (Universal Testing Machine) is used for?

• (1) Tension & compression test – Correct.
• (2) Slump test – No.
• (3) Workability – No.
• (4) Soundness – No.

📘 Q170. The main purpose of a cofferdam?

• (1) Exclude water from construction area – Correct.
• (2) Store water – No.
• (3) Divert water – No.
• (4) Regulate canal flow – No.

📘 Q171. A benchmark is used in surveying for?

• (1) Known elevation reference – Correct.
• (2) Measuring distance – No.
• (3) Chaining – No.
• (4) Fixing alignment – No.

📘 Q172. An ogee spillway is used in?

• (1) Gravity dams – Correct.
• (2) Earthen dams – No.
• (3) Canals – No.
• (4) Barrages – No.

📘 Q173. The component preventing uplift pressure under dams?

• (1) Drainage galleries – Correct.
• (2) Apron – No.
• (3) Heel – No.
• (4) Toe – No.

📘 Q174. A cantilever beam carries maximum tension at?

• (1) Fixed end – Correct.
• (2) Mid span – No.
• (3) Free end – Zero bending.
• (4) Neutral axis – Always zero.

📘 Q175. Which soil has the highest compressibility?

• (1) Clay – Correct.
• (2) Sand – Low compressibility.
• (3) Gravel – Very low.
• (4) Rock – Negligible.

📘 Q176. The BOD of water is measured for?

• (1) 5 days at 20°C – Correct.
• (2) 2 days – No.
• (3) 7 days – No.
• (4) 10 days – No.

📘 Q177. A triangulation station is used for?

• (1) Measurement of angles – Correct.
• (2) Leveling – No.
• (3) Chaining – No.
• (4) Profile survey – No.

📘 Q178. The main purpose of weep holes in retaining walls?

• (1) Release water pressure – Correct.
• (2) Reduce weight – No.
• (3) Increase strength – No.
• (4) Improve aesthetics – No.

📘 Q179. The most suitable soil for earth dams?

• (1) Impervious clay – Correct.
• (2) Sand – Too permeable.
• (3) Gravel – Too permeable.
• (4) Silt – Not stable.

📘 Q180. A transition curve is provided between?

• (1) Straight & circular curves – Correct.
• (2) Two straights – No.
• (3) Two circular curves – No.
• (4) Spiral to spiral – No.

✔ Part 10 (Q181–Q200) ready on request.