Psp Projects Assistant Project Manager Interview Questions and Answers

Q1. What is the minimum compressive strength of M25 grade concrete?
Ans. 
M25 grade concrete has a minimum compressive strength of 25 MPa (megapascals) at 28 days of curing.
• M25 is a medium-grade concrete used in structural applications.

• The compressive strength is determined through standard cube tests.

• For M25, the standard cube size is typically 150mm x 150mm x 150mm.

• It is commonly used in residential buildings, pavements, and precast elements.

• M25 concrete mix typically consists of a ratio o
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Q2. What is the significance of the lapping zone in columns?
Ans. 
The lapping zone in columns is crucial for structural integrity and load distribution in reinforced concrete structures.
• Lapping zone refers to the area where two reinforcing bars overlap to ensure continuity.

• It helps in transferring loads effectively between the bars, preventing weak points.

• Proper lapping length is essential to avoid failure; typically, it is 40 times the diameter of the bar.

• In seismic zones, adequate ...read more
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Q3. What is the slump test and its significance in construction?
Ans. 
The slump test measures the consistency and workability of fresh concrete, crucial for construction quality.
• The slump test involves filling a conical mold with concrete and measuring the vertical drop after removing the mold.

• A higher slump indicates more workability, suitable for complex shapes; a lower slump indicates stiffer concrete, ideal for structural elements.

• For example, a slump of 0-25 mm is typical for struct...read more
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Estimation of a small building.

Q1. Ratio of block work motor and plastrimg motor.
Ans. 
The ratio of block work motor to plastering motor is typically 1:3.
• The ratio of block work motor to plastering motor is usually 1:3.

• This means for every 1 part of block work motor, 3 parts of plastering motor are used.

• The ratio may vary depending on the specific project requirements.
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Q2. Per day productivity of a labour
Ans. 
The productivity of a laborer can be calculated by the amount of work completed in a day.
• Productivity is measured by the amount of work completed in a specific time frame, in this case, per day.

• Factors affecting productivity include skill level, motivation, tools/equipment available, and working conditions.

• Example: A construction worker completing 10 tasks in a day is more productive than one completing only 5 tasks.
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Q3. Amount of binding wire to be used per tone of reinforcement
Ans. 
Binding wire is typically used at a rate of 8-10 kg per ton of reinforcement.
• Typically, 8-10 kg of binding wire is used per ton of reinforcement to secure the bars in place.

• The amount of binding wire needed may vary based on the complexity of the reinforcement design and the spacing between bars.

• Using too little binding wire can result in inadequate reinforcement stability, while using too much can be wasteful and incr
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Q4. Density of materials
Ans. 
Density of materials is a measure of how much mass is contained in a given volume.
• Density is typically measured in units such as grams per cubic centimeter (g/cm^3) or kilograms per liter (kg/L).

• Materials with higher density have more mass packed into a given volume.

• Common examples of materials with high density include metals like lead and gold.

• Materials with low density include gases like helium and liquids like oil.
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Q1. Salary discussed
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Q1. Bar Bending Schedule
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Q2. Find out shuttering Area
Ans. 
Shuttering area can be calculated by finding the total surface area of the formwork used for concrete construction.
• Calculate the surface area of each individual formwork used for the concrete structure

• Add up the surface areas of all formworks to get the total shuttering area

• Consider any openings or gaps in the formwork when calculating the area
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Q3. Semi circle area formula
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The formula for the area of a semi-circle is (1/2) * pi * r^2, where r is the radius of the semi-circle.
• The formula for the area of a semi-circle is (1/2) * pi * r^2

• The radius (r) is half the diameter of the circle

• Example: If the radius of a semi-circle is 5 cm, the area would be (1/2) * 3.14 * 5^2 = 39.25 cm^2
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Q1. Why u want to join this company ?
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Q2. Why u want to quit Your present company
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Q3. About my Salary
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Q1. Roles and Responsibilities
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Q1. CBR requirement of soil.
Ans. 
CBR requirement of soil is a measure of its strength and ability to support heavy loads.
• CBR stands for California Bearing Ratio.

• It is a measure of the strength of a soil to support loads applied to it.

• Higher CBR values indicate stronger soil.

• CBR values are used in designing pavement structures.

• Different types of soil have different CBR requirements.
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