DSSSB AE Civil Tier 1 Mock Test - 10 - Civil Engineering (CE) MCQ

Sundays → 2nd, 9th, 16th, 23rd and 30th (5 Sundays)

Hence, Option C is correct.

When the denominator of an expression contains a term with a square root, the process of converting it to an equivalent expression whose denominator is a rational number is called rationalising the denominator.
By multiplying we will get same expression since 
Therefore, 

The side of the square must be the same as the breadth of the rectangle.
Side of the square = 4 meters
So the answer = 4 × 4 = 16 m²
Hence, Option D is correct.

Height of an equilateral triangle

Hence, Option A is correct.

Diameter of the circle = breadth of the rectangle = 42 meters
Radius of the circle

So the answer 

Hence, Option D is correct.

The logic follows here is:

Given code = (Positional value ÷ 2)3

Positional value of "V" = 22

22 ÷ 2 = 11

(11)3 = 1331

Positional value of "P" = 16 

16 ÷ 2 = 8

(8)3 = 512

Similarly,

Positional value of "J" = 10

10 ÷ 2 = 5

(5)3 = 125

Hence, the correct answer is "125".

दिए गए विकल्पों में सही उत्तर विकल्प 4 है। अन्य विकल्प इसके सही उत्तर नहीं हैं।

Key Points

• 'लजाना' अकर्मक क्रिया है।
• जब कर्म का अभाव होता है तो क्रिया का फल कर्ता पर पड़ता है। जब वाक्य में कोई कर्म नहीं होता तो क्रिया अकर्मक होती है।
• जैसे- पक्षी उड़ता है।

अन्य विकल्प:

Mistake Points

• जो क्रिया संज्ञा, सर्वनाम व विशेषण से बनती है उसे नामधातु क्रिया कहते है।
• यौगिक क्रियाएं वे होती हैं जिनमे दो क्रियाओं का योग होता है। जैसे: खाना-पीना, उठना-बैठना, हंसना-गाना, आदि।
• यहाँ लजाना क्रिया अकर्मक क्रिया होगी क्योकि इसके साथ कर्म की आवश्यकता नहीं है।

Additional Information

क्रिया- जहां किसी कार्य के करने या होने का बोध हो, क्रिया कहलाता है। जैसे- मोहन जाता है।, वह खाना खाता है। आदि।

रचना की दृष्टि से क्रिया के दो भेद होते हैं-

सही उत्तर "सामने" है।

• दिए गए विकल्पों में, 'सामने' शब्द 'समुच्चयबोधक अव्यय' नहीं है।
• 'सामने' शब्द 'सम्बन्धबोधक अव्यय' है।
• अन्य उदाहरण:

Key Points

• वे शब्द जिनमे लिंग, कारक, वचन, पुरुष आदि के कारण कोई विकार/ परिवर्तन उत्पन्न नहीं होता है, अव्यय शब्द कहलाते है।
• जैसे – आज, कब, इधर, किन्तु आदि।
• अव्यय के पांच भेद हैं –

The given sentence is in the active voice. The correct conversion to passive voice is given in option 2. Options 1 and 4 change the meaning of the given sentence and option 3 gives an incomplete conversion. 

The correct option is Option 3, i.e., ‘equanimity’.
The sentence talks about how the wife of President Madison could remain calm during an invasion as well. This ability of ‘remaining calm and composed in a difficult situation’ is what is meant by ‘equanimity’. Therefore, the correct answer is Option 3.

• Identify the context: The sentence mentions "the motivation to..." which indicates that we are looking for a verb that describes what motivates an employee.


• Eliminate irrelevant options: Options A, C, D, and E do not directly relate to motivation in the context provided, so we can eliminate them.


• Understand the meaning: The word "work" is the most appropriate choice here as it directly correlates with motivation in the workplace.


• Choose the correct answer: Therefore, the correct answer is B: work.

The Drag Coefficient has been empirically connected with Reynold's number by Thomas Camp curve as

• The process of giving a proper size, shape, and finish to the roughly broken stones as obtained from the quarry is known as “Dressing of stone.”

• The extraction of suitable stones from their natural rock beds or layers is commonly called Quarrying of Stones.

• Stones obtained from the quarries are very rough and irregular in shape and quite bulky in size and weight.

• The dressing of stone is done immediately after quarrying

In this method of irrigation, water is delivered through a network of pipes and pumps.

Water is available in form of the spray.

It also reduces seepage losses and other losses.

Hence, the Sprinkler method of irrigation has a higher water application efficiency.

Drip Irrigation:

This method is also called Trickling irrigation.

In this method of irrigation water is directly applied to the root zone of the plant using the drip nozzle.

Evaporation and percolation losses are considerably reduced in this method.

Hence, the duty of drip irrigation is very high.

Specific Energy,

Where y = depth of the flow

v = velocity of the flow

g = acceleration due to gravity

Porosity is defined as the ratio of the volume of voids to the volume of soil in a given soil mass.

pH of a water sample is given by

H⁺ = concentration of H⁺ ions (mg/l)

If, pH < 7,="" it="" is="" reported="" as="" />

pH > 7, it is reported as basic

pH = 7, it is reported as neutral

This implies, the lesser the pH value, the stronger the acid is.

So, among 2 and 5,

pH = 2 represents stronger acid.

Bow: Curvature of wood in the direction of its length is known as Bow.

Cup: Curvature in the transverse direction of timber is known as a cup.

Twist: It is the spiral distortion in the direction of timber.

Spring: Curvature of the timber in its plane

Note: While Upsets and Rind galls are the defects that arise due to natural forces.

• Workability of concrete is the property of freshly mixed concrete which determines the ease and homogeneity with which it can be mixed, placed, consolidated, and finished

• Water cement ratio has many effects on workability. Workability is directly proportional to the water-cement ratio. An increase in the water-cement ratio increases the workability of concrete

• If the Surface area for the given cement and aggregates is more, we require more amount of water for the required workability and vice versa

• Bigger size aggregates require less amount of water for wetting surface, requires less amount of paste for lubricating the surface

• Grading of aggregate has the maximum influence on workability. The better the grading, the less is the amount of void in it

• When the total void is less, an excess paste is available to give a better lubricating effect

• With an excess amount of paste, the mixture becomes cohesive and fatty which prevents segregation of particles & least amount of compacting efforts is required to compact the concrete

Radial moment at the centre of the Circular slab is

Where M_R = Radial moment

R = radius of slab

μ = Poisson’s ratio

r = any section at a distance r from centre of the slab

W = load on circular slab

For the maximum radial moment at centre

r = 0 and μ = 0

Therefore,

Moment of resistance factor is given by

Where,

c = permissible compressive bending stress in concrete (depends upon grade of concrete)

c = 5 N/mm² for M150 grade of concrete

j = liver arm depth factor =  1 - k/3

k = Neutral axis depth factor =  mc/(mc + t)

m = modular ratio =

σ_cbc = 5 N/mm²

Note:

i) The minimum vertical distance between two main bars shall be

• 15 mm,

• Two-third of the nominal size of coarse aggregate, or

• Maximum size of the bar or whichever is greater.

ii) Maximum Spacing between Bars in Tension:

1. For beams, these distances are 300 mm, 180 mm and 150 mm for grades of main reinforcement of Fe 250, Fe 415 and Fe 500, respectively.

2. For slabs

(i) The maximum spacing between two parallel main reinforcing bars shall be 3d or 300 mm or whichever is less, and

(ii) The maximum spacing between two secondary parallel bars shall be 5d or 450 mm or whichever is less.

• It shall consist of top and bottom reinforcement, each with a layer of bars placed parallel to the sides of the slab and extending from the edges a minimum distance of one-fifth of the shorter span.

• The area of reinforcement per unit width in each of these four layers shall be three-quarters of the area required for the maximum mid-span moment per unit width in the slab.

• Torsion reinforcement equal to half that described above shall be provided at a corner contained by edges over only one of which the slab is continuous.

Degree of static indeterminacy,

D_s = D_se - R

R = Release due to internal hinge

= m’ – 1

= 2 – 1 = 1

∴ D_se = r – 3

= 8 – 3 (where r = no of reactions)

= 5

∴ D_s = 5 – 1

= 4