DSSSB AE Practice Questions - DSSSB Assistant Engineer Recruitment Examination Exam - DSSSB AE Practice Questions - DSSSB Assistant Engineer Recruitment Examination Exam

Question 1

Which of the following constituents of cement is responsible for the initial setting time of cement and reacts fastest with water?

Tricalcium aluminate ($C_3A$) Tricalcium silicate ($C_3S$) Dicalcium silicate ($C_2S$) Tetracalcium aluminoferrite ($C_4AF$)

Correct Answer:

Tricalcium aluminate ($C_3A$)

Question 2

According to Abrams' water-cement ratio law, how is the compressive strength of fully compacted concrete related to the water-cement ratio?

Inversely proportional to the water-cement ratio Directly proportional to the water-cement ratio Independent of the water-cement ratio Directly proportional to the square root of the water-cement ratio

Correct Answer:

Inversely proportional to the water-cement ratio

Question 3

As per IS 4031, what is the specified minimum initial setting time and maximum final setting time for Ordinary Portland Cement (OPC)?

30 minutes and 600 minutes 45 minutes and 480 minutes 60 minutes and 120 minutes 30 minutes and 300 minutes

Correct Answer:

30 minutes and 600 minutes

Question 4

Using Bogue's equations, calculate the approximate percentage of Tricalcium Silicate ($C_3S$) in a clinker having the following oxide composition: $SiO_2 = 21.5\%$, $Al_2O_3 = 5.2\%$, $Fe_2O_3 = 3.2\%$, and $CaO = 63.5\%$. (Assume free lime and minor oxides are negligible, and Bogue's multiplier for $C_3S$ is $4.071 \cdot CaO - 7.600 \cdot SiO_2 - 6.718 \cdot Al_2O_3 - 1.430 \cdot Fe_2O_3$).

55.3% 42.5% 68.1% 28.4%

Correct Answer:

55.3%

Question 5

For wearing course aggregates in road pavements, what is the maximum permissible Aggregate Impact Value (AIV) according to Indian Road Congress (IRC) specifications?

30% 45% 20% 35%

Correct Answer:

30%

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Prepare with the DSSSB AE Practice Questions - DSSSB Assistant Engineer Recruitment Examination Exam practice quiz. This question bank includes 100 questions covering text, calculate, concrete, stress, and ratio. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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DSSSB AE Practice Questions - DSSSB Assistant Engineer Recruitment Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on text, calculate, concrete, stress, and ratio. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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DSSSB AE Practice Questions - DSSSB Assistant Engineer Recruitment Examination Exam

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