Civil Mini Mock Test 2

2.

The equipment used for checking the levels of the sewer inverts is

Dumpy level
Theodolite
Boning rod
All of these

Correct Answer

A. Boning rod

Explanation

A boning rod is a tool commonly used for checking the levels of sewer inverts. It is a long, straight rod with markings that indicate the desired level. The rod is placed in the sewer and the operator can determine if the invert is at the correct level by comparing it to the markings on the rod. The dumpy level and theodolite are not typically used for this purpose, so the correct answer is boning rod.

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3.

Sewer pipes are made of

Earthen ware
Stone ware
Refractory clay
Terracotta

Correct Answer

A. Stone ware

Explanation

Sewer pipes are typically made of stone ware because it is a durable and strong material that can withstand the harsh conditions of sewage systems. Stone ware pipes have a smooth interior surface that prevents the accumulation of debris and allows for efficient flow of wastewater. Additionally, stone ware pipes are resistant to chemical corrosion and can last for many years without needing replacement.

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4.

The instrument attached to the wheel of a vehicle in order to measure the distance travelled is called

Passometer
Pedometer
Speedometer
Odometer

Correct Answer

A. Odometer

Explanation

An odometer is a device attached to the wheel of a vehicle to measure the distance traveled. It is commonly used to keep track of the total distance covered by a vehicle, such as a car or a bicycle. The odometer works by counting the number of wheel rotations and converting it into distance measurements. This information is useful for various purposes, including maintenance, fuel efficiency calculations, and determining the resale value of the vehicle. A passometer, pedometer, and speedometer are different devices used for measuring steps, walking distance, and vehicle speed, respectively.

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5.

For proper mixing, how much revolutions are required in a well designed mixer???

35-45
25-30
15-20
10-15

Correct Answer

A. 25-30

Explanation

The correct answer is 25-30. In a well-designed mixer, it is generally recommended to have 25-30 revolutions for proper mixing. This range ensures that the ingredients are thoroughly mixed, creating a homogeneous mixture. Having too few revolutions may result in uneven distribution of ingredients, while having too many revolutions may overmix the ingredients, potentially affecting the texture or quality of the final product. Therefore, 25-30 revolutions strike a balance between achieving thorough mixing and avoiding overmixing.

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6.

The diameter of cold driven rivets ranges from

6-12 mm
12-22 mm
22-32 mm
32-42 mm

Correct Answer

A. 12-22 mm

Explanation

The correct answer is 12-22 mm because this range represents the diameter of cold driven rivets. Cold driven rivets are typically used in construction and metalworking industries to join two or more pieces of metal together. The diameter of the rivet is an important factor in determining its strength and suitability for a particular application. The range of 12-22 mm covers a variety of sizes that can accommodate different thicknesses of metal and provide a secure and durable joint.

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7.

When a shaft is subjected to a twisting moment, every cross section of the shaft will be under

Tensile stress
Compressive stress
Shear stress
Bending stress

Correct Answer

A. Shear stress

Explanation

When a shaft is subjected to a twisting moment, the force applied causes the shaft to twist, resulting in a shear stress. Shear stress occurs when adjacent layers of material slide past each other in opposite directions. In this case, the force applied to the shaft causes one side of the shaft to twist in one direction while the other side twists in the opposite direction, creating shear stress within the shaft. Therefore, the correct answer is shear stress.

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8.

According to indian standard specifications, the maximum size of the aggregate should not exceed ________ in the slump test

25 mm
30 mm
38 mm
42 mm

Correct Answer

A. 38 mm

Explanation

According to Indian standard specifications, the maximum size of the aggregate should not exceed 38 mm in the slump test. This means that during the slump test, the aggregate used should not have particles larger than 38 mm in size. This specification is important as it ensures that the aggregate used in construction projects is of a suitable size to achieve the desired workability and strength of the concrete mix. Using larger aggregates can result in issues such as segregation and difficulty in achieving proper compaction.

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9.

The compressive strength of paving bricks should not be less than

20 MN/sqm
30 MN/sqm
40 MN/sqm
50 MN/sqm

Correct Answer

A. 40 MN/sqm

Explanation

The compressive strength of paving bricks should not be less than 40 MN/sqm. This means that the bricks should be able to withstand a minimum compressive force of 40 MN (meganewtons) per square meter of area without breaking or crumbling. This is an important requirement to ensure the durability and longevity of the paving bricks, as they need to be able to withstand the weight and pressure exerted on them by vehicles and foot traffic. A compressive strength of 40 MN/sqm ensures that the paving bricks are strong enough to endure these forces and maintain their structural integrity over time.

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10.

Minimum gradient for flexible pavements to provide longitudinal drainage is

1 in 300
1 in 250
1 in 200
1 in 150

Correct Answer

A. 1 in 250

Explanation

The correct answer is 1 in 250. This means that for flexible pavements, a minimum gradient of 1 unit of vertical rise for every 250 units of horizontal distance is required in order to provide longitudinal drainage. This gradient allows for the proper flow of water along the pavement surface, preventing the accumulation of water and potential damage to the pavement structure. A steeper gradient would result in faster water flow, while a shallower gradient may not provide sufficient drainage.

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11.

Mc Arthur pile is a

Steel pile
Composite pile
Disc pile
Cast in situ concrete pile

Correct Answer

A. Cast in situ concrete pile

Explanation

The correct answer is Cast in situ concrete pile. A cast in situ concrete pile refers to a type of foundation pile that is constructed by pouring concrete directly into a pre-dug hole or shaft on-site. This type of pile is formed by first excavating the hole, then placing reinforcement bars (rebars) inside the hole, and finally pouring concrete into the hole to form the pile. Cast in situ concrete piles are commonly used in construction projects where high load-bearing capacity and stability are required.

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12.

The time factor corresponding to 25% degree of consolidation is given by

Pi/8
Pi/16
Pi/32
Pi/64

Correct Answer

A. Pi/64

Explanation

The time factor corresponding to the 25% degree of consolidation is given by Pi/64. This means that it takes a certain amount of time for a soil sample to undergo 25% consolidation. The smaller the time factor, the faster the consolidation process. In this case, Pi/64 indicates a relatively faster consolidation process compared to the other options.

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13.

The least size(Dia) of a reinforcement can be (theoretically) :

5 mm
6 mm
8 mm
10 mm

Correct Answer

A. 5 mm

Explanation

The least size (Dia) of a reinforcement can be theoretically 5 mm. This means that the smallest diameter that can be used for reinforcement is 5 mm. This is important in construction and engineering as it determines the minimum size of reinforcement that can be used to provide strength and support to structures. Using a smaller diameter may not provide sufficient strength and could compromise the integrity of the structure.

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14.

Concrete cover can be deviate from the required nominal cover upto (as per is 456:2000)

+5 mm
+10 mm
+15 mm
+20 mm

Correct Answer

A. +10 mm

Explanation

According to IS 456:2000, the concrete cover can deviate from the required nominal cover by a maximum of +10 mm. This means that the actual concrete cover can be up to 10 mm more or less than the specified nominal cover. This allowance is provided to account for any variations or discrepancies in the construction process.

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15.

A deflecting groyne in a river is

Perpendicular to bank
Inclined towards upstream
Inclined towards downstream
Perpendicular to river

Correct Answer

A. Perpendicular to bank

Explanation

A deflecting groyne in a river is perpendicular to the bank because it is designed to redirect the flow of water away from the bank and prevent erosion. By being perpendicular to the bank, the groyne creates a barrier that forces the water to flow in a different direction, helping to maintain the stability of the riverbank.

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Civil Mini Mock Test 2

A slab simply supported on the four edges, with corners held down and carrying uniformly distributed load may be analysed by

Quiz Preview

The equipment used for checking the levels of the sewer inverts is

Sewer pipes are made of

The instrument attached to the wheel of a vehicle in order to measure the distance travelled is called

For proper mixing, how much revolutions are required in a well designed mixer???

The diameter of cold driven rivets ranges from

When a shaft is subjected to a twisting moment, every cross section of the shaft will be under

According to indian standard specifications, the maximum size of the aggregate should not exceed ________ in the slump test

The compressive strength of paving bricks should not be less than

Minimum gradient for flexible pavements to provide longitudinal drainage is

Mc Arthur pile is a

The time factor corresponding to 25% degree of consolidation is given by

The least size(Dia) of a reinforcement can be (theoretically) :

Concrete cover can be deviate from the required nominal cover upto (as per is 456:2000)

A deflecting groyne in a river is