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Question 41

SSC JE CE 2026• General Engineering

In a turnout, "Negative Superelevation" is usually required when:

  1. AOption (a)

    The main line is on a curve, and a branch line takes off in the opposite direction.

  2. BOption (b)

    The train speed exceeds 160km/h.

  3. COption (c)

    The radius of the curve is less than 100m.

  4. DOption (d)

    The track is laid on a bridge.

View answer & explanation

Correct answer

Answer: (a)A.

The main line is on a curve, and a branch line takes off in the opposite direction.

Explanation not yet available.

Question 42

SSC JE CE 2026• General Engineering

A locomotive with 3 pairs of driving wheels carries 20 tonnes per axle. If the coefficient of friction is 0.2, what is the haulage capacity?

  1. AOption (a)

    6tonnes

  2. BOption (b)

    12tonnes

  3. COption (c)

    18tonnes

  4. DOption (d)

    40tonnes

View answer & explanation

Correct answer

Answer: (a)A.

6tonnes

Explanation not yet available.

Question 43

SSC JE CE 2026• General Engineering

A mono-symmetric I-beam is subjected to uniform bending. Why does its lateral-torsional buckling (LTB) resistance increase when the larger flange is placed in compression?

  1. AOption (a)

    The Shear Center and Centroid coincide.

  2. BOption (b)

    The Wagner Effect (J-parameter) increases the torsional stiffness.

  3. COption (c)

    The increased moment of inertia about the minor axis \( I_y \) dominates the Euler formula.

  4. DOption (d)

    The warping constant \( C_w \) is minimised.

View answer & explanation

Correct answer

Answer: (a)A.

The Shear Center and Centroid coincide.

Explanation not yet available.

Question 44

SSC JE CE 2026• General Engineering

In a propped cantilever steel beam designed for plastic redistribution, full plastic hinge formation is often not achieved when High-Strength Steel (HSS) is used. What is the primary material-related reason for this limitation?

  1. AOption (a)

    HSS has a higher yield-to-tensile strength \( f_y/f_u \) ratio, reducing the rotation capacity before fracture.

  2. BOption (b)

    HSS is inherently more susceptible to shear lag in the web.

  3. COption (c)

    The Young's Modulus of HSS is significantly lower than mild steel.

  4. DOption (d)

    HSS cannot be welded, preventing continuous moment connections.

View answer & explanation

Correct answer

Answer: (a)A.

HSS has a higher yield-to-tensile strength \( f_y/f_u \) ratio, reducing the rotation capacity before fracture.

Explanation not yet available.

Question 45

SSC JE CE 2026• General Engineering

When calculating the deflection of a deep steel plate girder, why is the standard Euler-Bernoulli beam theory insufficient?

  1. AOption (a)

    It ignores warping's contribution to the bending moment.

  2. BOption (b)

    It neglects the "Shear Deformation" \( \frac{V}{GA_v} \), which becomes significant at low span-to-depth ratios.

  3. COption (c)

    It assumes the steel is an anisotropic material.

  4. DOption (d)

    It cannot account for the weight of the stiffeners.

View answer & explanation

Correct answer

Answer: (a)A.

It ignores warping's contribution to the bending moment.

Explanation not yet available.

Question 46

SSC JE CE 2026• General Engineering

What does the "Staleness" or "Ageing" of steel (Strain Ageing) do to its mechanical properties?

  1. AOption (a)

    Increases ductility and decreases yield strength.

  2. BOption (b)

    Increases yield strength but significantly decreases notch toughness (increasing brittleness).

  3. COption (c)

    Makes the steel immune to corrosion.

  4. DOption (d)

    Changes the steel's colour to blue.

View answer & explanation

Correct answer

Answer: (a)A.

Increases ductility and decreases yield strength.

Explanation not yet available.

Question 47

SSC JE CE 2026• General Engineering

In a flow field, the streamlines and equipotential lines are:

  1. AOption (a)

    Parallel to each other

  2. BOption (b)

    Orthogonal everywhere except at stagnation points

  3. COption (c)

    Orthogonal only in laminar flow

  4. DOption (d)

    Only orthogonal in 3D flow

View answer & explanation

Correct answer

Answer: (a)A.

Parallel to each other

Explanation not yet available.

Question 48

SSC JE CE 2026• General Engineering

The condition for the most economical trapezoidal channel section is that the hydraulic radius R is equal to:

  1. AOption (a)

    Half the depth \( (\frac{y}{2}) \)

  2. BOption (b)

    The depth (y)

  3. COption (c)

    Twice the depth (2y)

  4. DOption (d)

    \( \frac{y}{\sqrt{3}} \)

View answer & explanation

Correct answer

Answer: (a)A.

Half the depth \( (\frac{y}{2}) \)

Explanation not yet available.

Question 49

SSC JE CE 2026• General Engineering

Which of the following turbines has the highest specific speed \( (N_s) \)?

  1. AOption (a)

    Pelton Wheel (Single Jet)

  2. BOption (b)

    Francis Turbine

  3. COption (c)

    Pelton Wheel (Multi Jet)

  4. DOption (d)

    Propeller Turbine

View answer & explanation

Correct answer

Answer: (a)A.

Pelton Wheel (Single Jet)

Explanation not yet available.

Question 50

SSC JE CE 2026• General Engineering

A vacuum gauge connected to a chamber reads 40 cm of Hg. If the local barometer reads 750 mm of Hg, the absolute pressure in the chamber is:

  1. AOption (a)

    46.66 kPa

  2. BOption (b)

    53.33 kPa

  3. COption (c)

    115  kPa 

  4. DOption (d)

    35 ​ kPa 

View answer & explanation

Correct answer

Answer: (a)A.

46.66 kPa

Explanation not yet available.
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