MADHYA PRADESH PUBLIC SERVICE (MPPSC) COMMISSION - ASSISTANT ENGINEER EXAM - MPPSC AE 2021 CIVIL ENGINEERING - SOLVED PAPER WITH EXPLANATIONS

MADHYA PRADESH PUBLIC SERVICE COMMISSION
ASSISTANT ENGINEER (AE) EXAM – 2021
CIVIL ENGINEERING
SOLVED PAPER WITH EXPLANATIONS
FREE DOWNLOAD PDF

Madhya Pradesh state Public Service Commission conducted Assistant Engineer Exam in year 2021 for Civil Engineering stream to fulfil the open roles of Assistant Engineer for the state of Madhya Pradesh. Download the Question paper along with Solutions and their detailed explanations only on StudyCivilEngg.com. Download link is provided at the end of this post. Below are the sample questions and their solutions with explanations from the MPPSC AE Civil Engineering Exam 2021 – Download for free in PDF Format.

QUESTIONS AND SOLUTIONS WITH EXPLANATIONS

QUESTIONS 17: Morgan keys are suitable for CI chairs, plate sleepers and metal sleepers. There specifications are

(a) 12 cm long with a taper of 1 in 48
(b) 12 cm long with a taper of 1 in 30
(c) 18 cm long with a taper of 1 in 48
(d) 12 cm long with a taper of 1 in 32

Answer – (d) : Morgan key

Key- They are small tapered pieces of timber coated of steel.

These are used to fix rails to chairs on metal sleepers.
Morgan key (18 cm long and taper 1 in 32) is most commonly used in CI chairs & steel sleepers.

QUESTION 19: Worm up rail should not be used if the wear exceeds the limit between

(a) 7% to 10%
(b) 3% to 4.5%
(c) 10% to 12.5%
(d) 5% to 8.0%

Answer – (d)

As IRPWM manual, limit of loss of section due to wear is given as

Rail section : Loss of section in percentage
52 kg/m : 6%
60 kg/m : 7%

QUESTION 20: If drainage is permitted throughout the test, during the application of both normal and shear stresses, so that full consolidation occurs and no excess pore pressure is set-up at any stage of the test, is known as

(a) Drained test
(b) Quick test
(c) C-U test
(d) Compression test

Answer – (a) : CD (Drained)

Test-Drainage permitted during consolidation stage as well as deviator stage.
CU test-Drainage permitted during consolidation test only.
UU test-Drainage is not permitted during any stage.

QUESTION 21: In site exploration, depth upto which the increase in pressure is likely to cause shear failure is known as

(a) Significant depth
(b) Failure depth
(c) Pressure depth
(d) Exploration depth

Answer – (a)

Signification Depth (Soil) – Exploration, in general, should be carried out to depth upto which the increase in pressure due to structure loading is likely to cause perceptible settlement or shear failure of foundations, such, a depth, known as significant depth.

QUESTION 23: Which of the following is a characteristic of general shear failure?

(a) Failure is accompanied by compressibility of soil
(b) Failure is sudden
(c) Bulging of shearing mass of soil
(d) Depression of soil

Answer – (b)

Main characteristic of General shear failure-
(i) A well defined slip surface developed on both or one side of footing.
(ii) A sudden, catastrophic failure accompanied by tilting of foundation.
(iii) Bulging of ground surface adjacent to the foundation before failure.

QUESTION 24: The piles that are used for protecting structures from ships and floating objects are

(a) Anchor piles
(b) Compaction piles
(c) Batter piles
(d) Fender piles

Answer – (d)

Anchor piles-Used to resist uplift
Compaction piles-to compact loose sand deposited
Batter piles-Installed at an inclination & resist transverse forces.
Fender piles-Used as water front structures against impact from ship and other floating object, from the abrasion or impact.

QUESTION 25: The stress in cement concrete pavement changes

(a) Seasonally
(b) Annually
(c) Daily
(d) None of the above

Answer – (c)

The daily variation in atmospheric temperature causes difference in temperature between the top and bottom of the CC pavement slab. This result in warping of the CC pavement slab and consequent development of flexural stresses and therefore this is an important factor affecting its design and performance.

ALL THE OTHER QUESTIONS AND THEIR SOLUTIONS WITH EXPLANATIONS ARE PRESENT IN MPPSC AE 2021 CIVIL ENGINEERING SOLVED PAPER PDF