🧱 KPSC JE Civil – Solved Questions (Part 6: Q101–Q120)

Below are questions 101 to 120 with correct answer and explanation for all options.

📘 Q101. The compressive strength of bricks is expressed in?

• (1) N/mm² – Correct.
• (2) kg/m – Not used.
• (3) N/m² – Very small.
• (4) kN – Incorrect unit.

📘 Q102. A structure designed to retain earth pressure?

• (1) Retaining wall – Correct.
• (2) Wing wall – Used for bridge approaches.
• (3) Breast wall – Uphill slopes.
• (4) Parapet wall – Safety barrier.

📘 Q103. Fineness modulus of coarse aggregate usually ranges from?

• (1) 2.0–3.0 – Fine aggregate.
• (2) 3.5–6.0 – Correct.
• (3) 1.0–1.5 – Very fine sand.
• (4) 6.5–9.0 – Not used.

📘 Q104. Ideal fluid has?

• (1) Zero viscosity – Correct.
• (2) High viscosity – No.
• (3) Variable viscosity – No.
• (4) Negative viscosity – Impossible.

📘 Q105. Unit of modulus of elasticity?

• (1) N/mm² – Correct.
• (2) m³ – No.
• (3) kg – No.
• (4) m/sec – No.

📘 Q106. Soil with plasticity index > 35% is?

• (1) Low plastic – P.I < 7.
• (2) Medium plastic – P.I 7–17.
• (3) Highly plastic – Correct.
• (4) Non-plastic – No.

📘 Q107. Device used to measure discharge in open channels?

• (1) Weir – Correct.
• (2) Venturimeter – Used in pipes.
• (3) Pitot tube – Measures velocity.
• (4) Anemometer – Measures wind speed.

📘 Q108. Angle of internal friction of coarse sand?

• (1) 10° – Too low.
• (2) 20° – Medium sand.
• (3) 35° – Correct.
• (4) 50° – Very high, unrealistic.

📘 Q109. In highway, super elevation is provided to?

• (1) Counteract centrifugal force – Correct.
• (2) Increase friction – No.
• (3) Reduce camber – No.
• (4) Improve drainage – Secondary benefit only.

📘 Q110. Soundness of cement is tested using?

• (1) Vicat apparatus – Setting time.
• (2) Le Chatelier apparatus – Correct.
• (3) Blaine apparatus – Fineness.
• (4) Compression machine – Strength.

📘 Q111. The ratio of inertia force to viscous force is?

• (1) Froude number – Gravity related.
• (2) Euler number – Pressure related.
• (3) Weber number – Surface tension.
• (4) Reynolds number – Correct.

📘 Q112. A clay soil with low permeability?

• (1) Allows high seepage – No.
• (2) Has low consolidation time – Opposite.
• (3) Drains very slowly – Correct.
• (4) Behaves like sand – No.

📘 Q113. Maximum height of embankment constructed with ordinary soil?

• (1) 2–3 m – Correct (stable height).
• (2) 5–7 m – Requires compaction & control.
• (3) 15 m – Requires engineering design.
• (4) 30 m – Not possible.

📘 Q114. Minimum % of water for hydration of cement?

• (1) 10% – Too low.
• (2) 15% – Still low.
• (3) 23% – Correct.
• (4) 40% – Excess.

📘 Q115. A siphon works on the principle of?

• (1) Centrifugal action – No.
• (2) Atmospheric pressure – Correct.
• (3) Viscosity – No.
• (4) Jet action – No.

📘 Q116. The slope of road surface for drainage?

• (1) Camber – Correct.
• (2) Gradient – Longitudinal slope.
• (3) Super elevation – Curves.
• (4) Shoulder – Side strip.

📘 Q117. The permeability of coarse sand is?

• (1) Very high – Correct.
• (2) Very low – Clay.
• (3) Medium – Sandy clay.
• (4) Zero – No soil has zero permeability.

📘 Q118. Unit weight of water?

• (1) 9.81 kN/m³ – Correct.
• (2) 7 kN/m³ – No.
• (3) 15 kN/m³ – Too high.
• (4) 3 kN/m³ – No.

📘 Q119. For good quality timber, the annual rings should be?

• (1) Wide – Weak wood.
• (2) Close & uniform – Correct.
• (3) Irregular – Poor quality.
• (4) Random – No.

📘 Q120. Workability of concrete increases with?

• (1) More water – Increases but reduces strength.
• (2) Use of admixtures – Correct.
• (3) Rounded aggregates – Correct.
• (4) All of the above – Correct Answer.

✔ Part 7 (Q121–Q140) available on request.