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100+ Free DDA JE Civil Practice Questions

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2026 Statistics

Key Facts: DDA JE Civil Exam

150 MCQs

Total questions in the official CBT paper (100 technical + 50 aptitude)

DDA DR-2025 Notification

120 Minutes

Total duration allowed for the examination

DDA Exam Scheme

₹1000 / ₹0

Application fees for General and Reserved/Women categories

DDA Fee Structure

0.33 Marks

Negative marking points deducted for each incorrect answer

DDA Exam Scheme

The DDA JE Civil exam features 150 questions to be completed in 120 minutes with a negative marking of 0.33 marks. The application fee is ₹1000 for General/OBC/EWS and ₹0 for SC/ST/Women/PwBD.

Sample DDA JE Civil Practice Questions

Try these sample questions to test your DDA JE Civil exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which of the following chemical compounds is responsible for the early strength development (within the first 7 days) of Ordinary Portland Cement?
A.Tricalcium silicate (C3S)
B.Dicalcium silicate (C2S)
C.Tricalcium aluminate (C3A)
D.Tetracalcium aluminoferrite (C4AF)
Explanation: Tricalcium silicate (C3S) hydrates rapidly and is chiefly responsible for the early strength of cement, particularly during the first week. Dicalcium silicate (C2S) hydrates much slower and contributes to the long-term strength. Tricalcium aluminate (C3A) hydrates almost immediately but does not contribute significantly to strength.
2What is the name of the defect in timber caused by the separation of wood fibers along the annual growth rings, forming a curved split?
A.Heart shake
B.Ring shake
C.Star shake
D.Cup shake
Explanation: Cup shake is a defect characterized by the separation of wood fibers along the annual growth rings, forming a curved split. It typically occurs due to high winds during growth or uneven shrinkage. Ring shake is similar but forms a complete circular separation.
3For a first-class brick, the water absorption after 24 hours of immersion in cold water should not exceed what percentage of its dry weight?
A.15%
B.25%
C.30%
D.20%
Explanation: According to Indian Standards (IS 3495), a first-class brick must not absorb water more than 20% of its dry weight when immersed in cold water for 24 hours. For second-class bricks, the limit is 22%, and for third-class bricks, it is 25%. Lower water absorption indicates a denser, higher-quality brick.
4A dry sand sample has a volume of 500 cm³. After the addition of water, it undergoes bulking and its volume increases to 600 cm³. What is the percentage of bulking of this sand sample?
A.15%
B.25%
C.20%
D.30%
Explanation: Bulking of sand is the increase in its volume due to moisture film around the grains. It is calculated as: Bulking % = [(Bulked Volume - Dry Volume) / Dry Volume] * 100 = [(600 - 500) / 500] * 100 = (100 / 500) * 100 = 20%.
5On the Mohs hardness scale for minerals, what is the hardness value of Gypsum?
A.1
B.3
C.4
D.2
Explanation: Gypsum has a Mohs hardness value of 2. Talc is the softest mineral with a hardness of 1, and diamond is the hardest with a value of 10. Knowing these values is critical for selecting stones for construction.
6Which constituent of hydraulic lime is responsible for its hydraulic properties, allowing it to set and harden under water?
A.Silica
B.Alumina
C.Clay
D.Iron Oxide
Explanation: Clay is the constituent in hydraulic lime that gives it the property of hydraulicity, allowing it to set and harden under water or in damp conditions. The percentage of clay ranges between 5% to 30%. In contrast, fat lime lacks clay and cannot set under water.
7The soundness test of cement using the Le-Chatelier apparatus measures the soundness of cement due to which component?
A.Free Lime only
B.Free Magnesia only
C.Both Free Lime and Magnesia
D.Alumina
Explanation: The Le-Chatelier apparatus is used to measure soundness of cement due to free lime (Uncombined Lime) only. Soundness due to both lime and magnesia is measured using the Autoclave test. Unsoundness causes cracking and disintegration of the concrete structure over time.
8The peeling off of plaster from the masonry wall in small patches is known as which of the following plastering defects?
A.Blistering
B.Cracking
C.Flaking
D.Efflorescence
Explanation: Flaking is the peeling of plaster layers from the wall surface due to weak bond between the wall and the plaster coat or due to improper curing. It can be prevented by preparing the wall surface properly and curing it sufficiently.
9Which of the following compounds in cement are minimized to produce Low Heat Portland Cement?
A.C3S and C2S
B.C2S and C3A
C.C4AF and C2S
D.C3S and C3A
Explanation: Low Heat Portland Cement is produced by reducing the percentages of Tricalcium Silicate (C3S) and Tricalcium Aluminate (C3A), which hydrate very quickly and produce high heat. The proportion of Dicalcium Silicate (C2S) is increased. This is done to prevent cracking in mass concrete works like dams.
10Which of the following is commonly used as a volatile solvent (thinner) in oil-based paints?
A.Linseed oil
B.Zinc Oxide
C.Red Lead
D.Turpentine oil
Explanation: Turpentine oil is the most widely used thinner in oil paints. It reduces the viscosity of the paint, making it easier to apply, and evaporates during drying. Linseed oil is a vehicle/binder, and zinc oxide is a pigment.

About the DDA JE Civil Exam

The DDA JE Civil exam is conducted for recruiting Junior Engineers in the Civil engineering department of the Delhi Development Authority. This practice test contains exactly 100 questions representing the official syllabus: 80 questions covering core Civil Engineering topics (Building Materials, Surveying, Soil Mechanics, RCC & Concrete, Structures, Hydraulics, Environmental) and 20 questions covering Non-Technical topics (General Awareness, Reasoning, Quantitative Aptitude, English). Each question includes detailed explanations and incorrect option rationales.

Questions

150 scored questions

Time Limit

120 minutes

Passing Score

40% for UR

Exam Fee

₹1000 for General/OBC/EWS, ₹0 for SC/ST/Women/PwBD. (Delhi Development Authority (DDA))

DDA JE Civil Exam Content Outline

80%

Civil Engineering (Technical)

Building Materials, Surveying, Soil Mechanics & Foundation Engineering, Concrete Technology, RCC Design, Steel Design, Structural Analysis, Fluid Mechanics & Hydraulics, and Environmental Engineering.

20%

Non-Technical Aptitude

General Awareness (History, Geography, Polity, Science), General Intelligence & Reasoning, Quantitative Aptitude, and English Language.

How to Pass the DDA JE Civil Exam

What You Need to Know

  • Passing score: 40% for UR
  • Exam length: 150 questions
  • Time limit: 120 minutes
  • Exam fee: ₹1000 for General/OBC/EWS, ₹0 for SC/ST/Women/PwBD.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

DDA JE Civil Study Tips from Top Performers

1Dedicate maximum time (~80%) to core Civil Engineering subjects, focusing on codes like IS 456, IS 800, and standard soil mechanics formulas.
2Practice structural analysis and design computations daily, as step-by-step design steps and properties are highly tested.
3Do not ignore the 20% non-technical section; practice reasoning puzzles and quantitative shortcuts to score quick marks.
4Familiarize yourself with the 0.33 negative marking by taking mock tests under real time constraints to avoid wild guessing.
5Review previous years' papers of both DDA JE and SSC JE to understand the repetitive questions from surveying and building materials.

Frequently Asked Questions

Is there any negative marking in the DDA JE Civil Exam?

Yes, there is a negative marking of 0.33 marks (1/3rd of the marks assigned to that question) for each incorrect answer.

What is the educational qualification required to apply?

Candidates must have a Diploma or Degree in Civil Engineering from a recognized board or university.

What is the application fee for the DDA JE Civil exam?

The application fee is ₹1000 for General, OBC, and EWS candidates. SC, ST, Women, and PwBD candidates are fully exempted from paying the fee.

What is the duration of the exam?

Candidates are given exactly 120 minutes (2 hours) to complete the computer-based test of 150 questions.

What is the age limit for the DDA JE Civil post?

The general age limit is 18 to 27 years. Age relaxations are applicable for SC, ST, OBC, and other reserved categories as per government norms.