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Question 211

DSSSB JE 2022• Discipline 3

The following beam sections are subjected to bending with load acting from the top. (i) Rectangular beam (width b = 300 mm and depth d = 500 mm) with load acting on top face of width b (ii) a T section (flange 100 mm × 20 mm, and web 130 mm × 20 mm) with flange on top and load acting on the flange face. The intensity of shear stress due to bending will be maximum for the sections as :

  1. AOption (a)

    At the top face (d = 0) for the rectangular beam ; at top face of flange for the T section

  2. BOption (b)

    At a distance of 0.25 d from the top face for the rectangular beam ; at a point on the web (within a distance of 65 cm from the bottom end of web) for the T section

  3. COption (c)

    At a distance of 0.5 d from the top face for the rectangular beam ; at a point on the flange (within a distance of 20 mm from the flange top) for the T section

  4. DOption (d)

    At a distance of 0.5 d from the top face for the rectangular beam ; at a point on the web (within a distance of 85 cm from the flange top) for the T section

View answer & explanation

Correct answer

Answer: (a)A.

At the top face (d = 0) for the rectangular beam ; at top face of flange for the T section

Explanation not yet available.

Question 212

DSSSB JE 2022• Discipline 3

Consider an Arithmetic and Logic Unit (ALU) of a computer is having four arithmetic operations: Addition, subtraction, multiplication and division. Also consider that the ALU is having four logical operations: OR, AND, NOT & EX-OR. How many control lines are necessary to identify any one of the above eight operations?

  1. AOption (a)

    2

  2. BOption (b)

    8

  3. COption (c)

    4

  4. DOption (d)

    3

View answer & explanation

Correct answer

Answer: (a)A.

2

Explanation not yet available.

Question 213

DSSSB JE 2022• Discipline 3

The extract of the sample of sieve analysis conducted on fine aggregate soil is given below. Weight of the sample of Fine aggregate taken is 1 kg. Estimate the fineness modulus of fine aggregate.

IS sieveWeight retained (kg)Cumulative % retained
2.36 mm0.1515
1.18 mm0.1530
600 micron0.250
300 micron0.2575
150 micron0.295
  1. AOption (a)

    2.5

  2. BOption (b)

    1.7

  3. COption (c)

    0.95

  4. DOption (d)

    2.65

View answer & explanation

Correct answer

Answer: (a)A.

2.5

Explanation not yet available.

Question 214

DSSSB JE 2022• Discipline 3

The following statements (S1 and S2) pertain to the Filtration process for water treatment.

S1: In most types of filtration, particles are removed mainly by straining.

S2: Slow sand filters have more operating problems and require frequent back washing when compared to rapid sand filters.

Check the validity of the statements as True or False and choose the best answer.

  1. AOption (a)

    Both S1 and S2 are False

  2. BOption (b)

    Both S1 and S2 are True

  3. COption (c)

    S1 is True and S2 is False

  4. DOption (d)

    S1 is False and S2 is True.

View answer & explanation

Correct answer

Answer: (a)A.

Both S1 and S2 are False

Explanation not yet available.

Question 215

DSSSB JE 2022• Discipline 3

The following statements (S1 and S2) pertain to the compiler in a computer.

S1 : It is a system software to convert source language program into target language program.

S2 : It validates the input program to the source language specification – produces error messages /warnings.

Choose the correct option

  1. AOption (a)

    S1 is False and S2 is True

  2. BOption (b)

    S1 is True and S2 is False

  3. COption (c)

    Both S1 and S2 are True

  4. DOption (d)

    Both S1 and S2 are False

View answer & explanation

Correct answer

Answer: (a)A.

S1 is False and S2 is True

Explanation not yet available.

Question 216

DSSSB JE 2022• Discipline 3

An example of an application specific operating system, that does not belong to the Real Time Operating System (RTOS) type is :

  1. AOption (a)

    QNX

  2. BOption (b)

    RT Linux

  3. COption (c)

    Ubuntu

  4. DOption (d)

    Vx Works

View answer & explanation

Correct answer

Answer: (a)A.

QNX

Explanation not yet available.

Question 217

DSSSB JE 2022• Discipline 3

Euler’s Crippling load for a column of length L with one end fixed and the other end hinged is given by : (Assume uniform flexural rigidity EI for the column Section)

  1. AOption (a)

    \({\pi^2\ EI\over {L^2}}\)

  2. BOption (b)

    \({\pi^2\ EI\over {4L^2}}\)

  3. COption (c)

    \({2\pi^2\ EI\over {L^2}}\)

  4. DOption (d)

    \({4\pi^2\ EI\over {L^2}}\)

View answer & explanation

Correct answer

Answer: (a)A.

\({\pi^2\ EI\over {L^2}}\)

Explanation not yet available.

Question 218

DSSSB JE 2022• Discipline 3

Arrange the cement compounds in Portland cements, in the increasing order (minimum to maximum value) of heat of hydration (and its rate ) of cement. Use Symbols as : C3S : Tricalcium silicate, C2S : Dicalcium silicate, C3A : Tricalcium Aluminate, C4AF : TetracalciumAlumino ferrite, for answering.

  1. AOption (a)

    C2S, C4A F, C3S, C3A

  2. BOption (b)

    C4A F, C3S, C3A, C2S

  3. COption (c)

    C3A F, C3S, C2S, C4A F

  4. DOption (d)

    C3A F, C3S, C4A F, C2S

View answer & explanation

Correct answer

Answer: (a)A.

C2S, C4A F, C3S, C3A

Explanation not yet available.

Question 219

DSSSB JE 2022• Discipline 3

According to IS 1172 : 1993, for the computation of water requirement for factories where bathrooms are required to be provided, the percapita water requirement is to be take as :

  1. AOption (a)

    45 litre per head/day

  2. BOption (b)

    135 litre per head/day

  3. COption (c)

    70 litre per head/day

  4. DOption (d)

    30 litre per head/day

View answer & explanation

Correct answer

Answer: (a)A.

45 litre per head/day

Explanation not yet available.

Question 220

DSSSB JE 2022• Discipline 3

The adding of fibres to concrete thereby making fibre reinforced concrete and the associated effects are given. Choose the incorrect answer.

  1. AOption (a)

    Improves the Impact strength of concrete

  2. BOption (b)

    Improves Fatigue strength of concrete

  3. COption (c)

    Workability of mix decreases as fibre content increases.

  4. DOption (d)

    Increases the workability

View answer & explanation

Correct answer

Answer: (a)A.

Improves the Impact strength of concrete

Explanation not yet available.
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