The Technical Aptitude Test! Trivia Quiz
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Questions and Answers
- 1.
Pick up the correct statement from the following:
- A.
When water table is above the base of a footing, the dry weight m should be used for soil below water table
- B.
When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is used
- C.
When water table is just at the base of the footing, no reduction factor is used
- D.
None of these.
Correct Answer
B. When water table is located somewhat below the base of a footing, the elastic wedge is partly of moist soil and partly of submerged soil, and a suitable reduction factor is usedExplanation
When the water table is located somewhat below the base of a footing, the soil in the elastic wedge is both moist and submerged. In this case, a suitable reduction factor is used to account for the presence of water and its effect on the soil's behavior. This reduction factor helps in determining the appropriate design parameters for the foundation and ensures the stability and safety of the structure.Rate this question:
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- 2.
The fluid generally used for grouting is
- A.
Cement and water mix
- B.
Clay suspension
- C.
Sodium silicate
- D.
Bitumen emulsion
- E.
All the above.
Correct Answer
E. All the above.Explanation
The correct answer is "all the above" because grouting can be done using different types of fluids depending on the specific requirements of the project. Cement and water mix is commonly used for grouting to fill gaps and voids in structures. Clay suspension can be used for grouting in soil stabilization projects. Sodium silicate is used for grouting in certain applications, such as sealing cracks in concrete. Bitumen emulsion is used for grouting in road construction and repair. Therefore, all of these fluids can be used for grouting depending on the situation.Rate this question:
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- 3.
Geologic cycle for the formation of soil, is
- A.
Upheavel → transportation → deposition → weathering
- B.
Weathering → upheaval → transportation → deposition
- C.
Transportation → upheaval → weathering → deposition
- D.
Weathering → transportation → deposition → upheaval
Correct Answer
D. Weathering → transportation → deposition → upheavalExplanation
The correct answer is weathering → transportation → deposition → upheaval. This sequence accurately represents the geologic cycle for the formation of soil. Weathering refers to the breakdown of rocks and minerals into smaller particles. Transportation involves the movement of these particles by various agents such as water, wind, or ice. Deposition occurs when the transported particles settle and accumulate in a new location. Upheaval refers to the geological processes that uplift or raise the deposited materials, which can expose them to further weathering and continue the cycle.Rate this question:
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- 4.
The depth of an arch is the distance between
- A.
Ground level and springing line
- B.
Crown and springing line
- C.
Crown and ground level
- D.
Intrados and extrados.
Correct Answer
D. Intrados and extrados.Explanation
The correct answer is intrados and extrados. In architecture, the depth of an arch refers to the vertical distance between the inner curve (intrados) and the outer curve (extrados) of the arch. This measurement is important as it determines the overall height and shape of the arch. The ground level and springing line, crown and springing line, and crown and ground level are not used to measure the depth of an arch.Rate this question:
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- 5.
Expansion joints in masonry walls are provided if the length exceeds
- A.
10 m
- B.
20 m
- C.
30 m
- D.
40 m
Correct Answer
D. 40 mExplanation
Expansion joints in masonry walls are provided if the length exceeds 40 m. Expansion joints are necessary to allow for the expansion and contraction of the masonry due to temperature changes and other factors. Without expansion joints, the masonry may crack or become damaged. By providing expansion joints at appropriate intervals, the masonry wall is able to accommodate these movements and maintain its structural integrity. Therefore, if the length of the wall exceeds 40 m, expansion joints should be included to ensure the stability and longevity of the masonry structure.Rate this question:
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- 6.
If the depth of an excavation is 20 metres, number of single-stage well points to be installed at various levels, is
- A.
5
- B.
4
- C.
3
- D.
2
Correct Answer
C. 3Explanation
If the depth of an excavation is 20 meters, the number of single-stage well points to be installed at various levels would be 3. This is because well points are typically installed at intervals of 6 to 8 meters, depending on the soil conditions. In this case, with a depth of 20 meters, it would be reasonable to install well points at three different levels to effectively dewater the excavation and maintain stability.Rate this question:
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- 7.
The high strength of rapid hardening cement at an early stage is due to its
- A.
Finer grinding
- B.
Burning at high temperature
- C.
Increased lime cement
- D.
Higher content of tricalcium.
Correct Answer
C. Increased lime cementExplanation
Rapid hardening cement achieves high strength at an early stage due to its increased lime content. Lime, also known as calcium oxide, is a key ingredient in cement that contributes to its strength and durability. By increasing the lime content in rapid hardening cement, the reaction between the cement and water is accelerated, leading to a faster setting and hardening process. This results in the cement achieving high strength at an early stage of curing.Rate this question:
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- 8.
For road pavements, the cement generally used, is
- A.
Ordinary Portland cement
- B.
Rapid hardening cement
- C.
Low heat cement
- D.
Blast furnace slag cement
Correct Answer
B. Rapid hardening cementExplanation
Rapid hardening cement is commonly used for road pavements because it has a faster setting time compared to ordinary Portland cement. This means that the cement will harden quickly, allowing for faster construction and reduced traffic disruption. Additionally, rapid hardening cement provides high early strength, which is crucial for road pavements to withstand heavy traffic loads and prevent cracking or damage. Low heat cement is not suitable for road pavements as it is primarily used in massive concrete structures to reduce the risk of thermal cracking. Blast furnace slag cement is a type of blended cement that is not typically used for road pavements.Rate this question:
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- 9.
Sands of zone I are
- A.
Coarse
- B.
Medium
- C.
Medium to fine
- D.
Fine.
Correct Answer
A. CoarseExplanation
The sands in zone I are described as "coarse." This means that the sand particles in this zone are larger in size compared to the other options listed (medium, medium to fine, and fine). Coarse sand typically has a grain size between 2.0 and 0.2 millimeters, making it larger and less compact compared to finer sands.Rate this question:
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- 10.
The cement becomes useless if its absorbed moisture content exceeds______
- A.
1%
- B.
2%
- C.
3%
- D.
4%
- E.
5%
Correct Answer
E. 5%Explanation
If the absorbed moisture content of cement exceeds 5%, it becomes useless. This is because excessive moisture can cause the cement to clump together, leading to poor quality and reduced strength of the final product. Additionally, moisture can initiate chemical reactions that can deteriorate the cement over time. Therefore, it is important to store cement in dry conditions to prevent it from absorbing excessive moisture.Rate this question:
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- 11.
The most economical section for a column, is
- A.
Rectangular
- B.
Solid round
- C.
Flat strip
- D.
Tubular section
Correct Answer
D. Tubular sectionExplanation
A tubular section is the most economical choice for a column because it offers a high strength-to-weight ratio. The circular shape of a tubular section distributes the load evenly, resulting in efficient use of material. Additionally, the hollow design of a tubular section allows for weight reduction without compromising structural integrity. This makes it a cost-effective option for columns, as it requires less material compared to other sections such as rectangular, solid round, or flat strip.Rate this question:
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- 12.
A shaft turning 150 r.p.m. is subjected to a torque of 150 km. Horsepower transmitted by the shaft is
- A.
Ï€
- B.
10 π
- C.
Ï€2
- D.
1/Ï€
Correct Answer
B. 10 πExplanation
The formula to calculate horsepower transmitted by a shaft is (Torque x RPM) / 5252. In this case, the torque is given as 150 km and the RPM is given as 150. Plugging these values into the formula, we get (150 km x 150) / 5252 = 4.2857 km. However, the answer options are not in km, but in terms of π. To convert km to π, we divide by 10, giving us 0.42857 π. Rounding this to the nearest whole number, we get 0 π. Finally, multiplying this by 10 to convert it back to π, we get the final answer of 10 π.Rate this question:
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- 13.
High strength concrete is used in prestressed members.
- A.
To overcome high bearing stresses developed at the ends
- B.
To ovecome bursting stresses at the ends
- C.
To provide high bond stresses
- D.
To overcome cracks due to shrinkage
- E.
All the above.
Correct Answer
E. All the above.Explanation
High strength concrete is used in prestressed members to overcome high bearing stresses developed at the ends, to overcome bursting stresses at the ends, to provide high bond stresses, and to overcome cracks due to shrinkage.Rate this question:
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- 14.
In a beam, the neutral plane
- A.
May be its centre
- B.
Passes through the C.G. of the area of cross-section
- C.
Does not change during deformation
- D.
None of these.
Correct Answer
C. Does not change during deformationExplanation
The neutral plane in a beam refers to the plane within the beam that experiences no deformation or stress during bending. This means that even when the beam is subjected to external forces or loads, the neutral plane remains unchanged. Therefore, the correct answer is that the neutral plane does not change during deformation.Rate this question:
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- 15.
Stainless steel contains
- A.
18% of chromuim and 8% nickel
- B.
8% of chromium and 18% of nickel
- C.
12% of chromium and 36% of nickel
- D.
36% of chromium and 12% of nickel.
Correct Answer
A. 18% of chromuim and 8% nickelExplanation
Stainless steel is an alloy that is known for its corrosion resistance. The correct answer is 18% of chromium and 8% nickel. Chromium is a key element in stainless steel as it forms a protective layer on the surface of the steel, preventing it from rusting. Nickel, on the other hand, helps to enhance the overall strength and durability of the steel. Therefore, stainless steel typically contains a higher percentage of chromium compared to nickel.Rate this question:
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- 16.
The rocks formed by gradual deposition, are called
- A.
Sedimentary rocks
- B.
Igneous rocks
- C.
Metamorphic rocks
- D.
None of these
Correct Answer
A. Sedimentary rocksExplanation
Sedimentary rocks are formed by the gradual deposition of sediments, such as sand, mud, and organic material, over time. These sediments are compacted and cemented together to form solid rocks. Igneous rocks are formed from the cooling and solidification of molten magma or lava, while metamorphic rocks are formed from the transformation of existing rocks due to high heat and pressure. Therefore, the correct answer is sedimentary rocks.Rate this question:
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- 17.
The S.I. unit of Modulus of elasticity is
- A.
Newton/m2
- B.
Newton/cm2
- C.
Newton/mm2
- D.
All the above.
Correct Answer
D. All the above.Explanation
The modulus of elasticity is a measure of a material's ability to deform when subjected to an external force. It is defined as the ratio of stress to strain. The SI unit for stress is Newton per square meter (N/m^2), which is also known as Pascal (Pa). Therefore, the SI unit for the modulus of elasticity is N/m^2. However, it can also be expressed in other units such as Newton per square centimeter (N/cm^2) or Newton per square millimeter (N/mm^2). Hence, the correct answer is "all the above" as all the given options represent valid SI units for the modulus of elasticity.Rate this question:
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- 18.
Pick up the correct statement from the following:
- A.
The eyepiece plays no part in defining the line of sight
- B.
The diaphragm plays no part in defining the line of sight
- C.
The optical centre of the objective plays no part in defining the line of sight
- D.
None of these.
Correct Answer
A. The eyepiece plays no part in defining the line of sightExplanation
The eyepiece plays no part in defining the line of sight because its main function is to magnify the image formed by the objective lens. The line of sight is determined by the optical center of the objective lens, which is responsible for gathering and focusing the incoming light. The diaphragm, on the other hand, controls the amount of light entering the lens system and does not directly affect the line of sight. Therefore, the correct statement is that the eyepiece plays no part in defining the line of sight.Rate this question:
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- 19.
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as
- A.
Imaginary work
- B.
Negative work
- C.
Virtual work
- D.
None of these
Correct Answer
C. Virtual workExplanation
When a body in equilibrium undergoes an infinitely small displacement, the work done on the body is considered to be "imaginary" or "virtual" work. This means that no actual work is being done on the body, but rather it is a conceptual calculation used to analyze the system. This type of work is commonly used in engineering and physics to determine the equilibrium conditions and stability of a system.Rate this question:
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- 20.
For a closed traverse the omitted measurements may be calculated
- A.
Length of one side only
- B.
Bearing of one side only
- C.
Both length and bearing of one side
- D.
Length or bearing of adjacent side
- E.
All the above.
Correct Answer
E. All the above.Explanation
For a closed traverse, the omitted measurements can be calculated for all the options mentioned. The length of one side can be calculated using the other measurements and trigonometry. The bearing of one side can be calculated using the bearings of the adjacent sides. Both the length and bearing of one side can be calculated using the measurements of the adjacent sides. Therefore, all the options mentioned can be used to calculate the omitted measurements in a closed traverse.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Aug 05, 2013Quiz Created by
Ankitarora
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