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Question 281

RRB JE 2026• Technical Abilities

In the chemical method for underpinning foundations, which of the following solution is injected in water after pipes are driven? 

  1. AOption (a)

    Sodium Silicate 

  2. BOption (b)

    Calcium Silicate 

  3. COption (c)

    Sulphate 

  4. DOption (d)

    Magnesium Silicate 

View answer & explanation

Correct answer

Answer: (a)A.

Sodium Silicate 

Explanation not yet available.

Question 282

RRB JE 2026• Technical Abilities

Which among the following is/are major requirement/s of a good foundation?

  1. AOption (a)

    Location

  2. BOption (b)

    Stability

  3. COption (c)

    Settlement

  4. DOption (d)

    all of the above

View answer & explanation

Correct answer

Answer: (a)A.

Location

Explanation not yet available.

Question 283

RRB JE 2026• Technical Abilities

What is the primary function of a compound wall in building construction?

  1. AOption (a)

    To demarcate the boundary of the property and provide security

  2. BOption (b)

    To facilitate drainage and prevent waterlogging around the property

  3. COption (c)

    To enhance the aesthetic appeal of the property

  4. DOption (d)

    To provide structural support to the building.

View answer & explanation

Correct answer

Answer: (a)A.

To demarcate the boundary of the property and provide security

Explanation not yet available.

Question 284

RRB JE 2026• Technical Abilities

The principle of 'incoming sewage is not allowed to get mixed up with the sludge produced, and the outgoing effluent is not allowed to carry with it large amounts organic load' is found in:

  1. AOption (a)

    sludge digestion tank

  2. BOption (b)

    Imhoff tank

  3. COption (c)

    detention tank

  4. DOption (d)

    septic tank

View answer & explanation

Correct answer

Answer: (a)A.

sludge digestion tank

Explanation not yet available.

Question 285

RRB JE 2026• Technical Abilities

Bernoulli’s equation is based on which of the following assumptions?

  1. AOption (a)

    The fluid is ideal, compressible and viscous.

  2. BOption (b)

    The flow is ideal, unsteady and turbulent, with no energy loss.

  3. COption (c)

    The fluid is ideal, incompressible and non-viscous, and the flow is steady and along a streamline, with no energy loss.

  4. DOption (d)

    The pressure is uniform in all directions in a moving fluid, with no energy loss.

View answer & explanation

Correct answer

Answer: (a)A.

The fluid is ideal, compressible and viscous.

Explanation not yet available.

Question 286

RRB JE 2026• Technical Abilities

Which of following statements is NOT true for moment distribution method?

  1. AOption (a)

    The moment distribution method was first introduced by Hardy Cross in 1930.

  2. BOption (b)

    Moment distribution is suitable for the analysis of specific types of indeterminate beams only and not for rigid frames.

  3. COption (c)

    It is also called a 'relaxation method' and it consists of successive approximations using a series of cycles, each converging towards the final result.

  4. DOption (d)

    Moment distribution is an iterative method of solving an indeterminate Structure.

View answer & explanation

Correct answer

Answer: (a)A.

The moment distribution method was first introduced by Hardy Cross in 1930.

Explanation not yet available.

Question 287

RRB JE 2026• Technical Abilities

Which of the following doors provides entrance to one and exit to another simultaneously, and closes automatically when not in use?

  1. AOption (a)

    Sliding door

  2. BOption (b)

    Collapsible door

  3. COption (c)

    Revolving door

  4. DOption (d)

    Flush door

View answer & explanation

Correct answer

Answer: (a)A.

Sliding door

Explanation not yet available.

Question 288

RRB JE 2026• Technical Abilities

The projection lines in orthographic projection are:

  1. AOption (a)

    inclined

  2. BOption (b)

    converging

  3. COption (c)

    perpendicular to the projection plane

  4. DOption (d)

    diverging

View answer & explanation

Correct answer

Answer: (a)A.

inclined

Explanation not yet available.

Question 289

RRB JE 2026• Technical Abilities

The wall that are supported and restrained against lateral deflection along one to four sides is called

  1. AOption (a)

    Stocky wall

  2. BOption (b)

    Un-braced wall

  3. COption (c)

    Slender wall

  4. DOption (d)

    Braced wall

View answer & explanation

Correct answer

Answer: (a)A.

Stocky wall

Explanation not yet available.

Question 290

RRB JE 2026• Technical Abilities

The rate of an item at the store godowns from public market at a given time is called the _________.

  1. AOption (a)

    market rate

  2. BOption (b)

    item rate

  3. COption (c)

    storage rate

  4. DOption (d)

    current rate

View answer & explanation

Correct answer

Answer: (a)A.

market rate

Explanation not yet available.