Pennar Industries Site Engineer Interview Questions and Answers

Q1. Previous working experience detailed. Documents verification
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Q1. What is concrete Temperature
Ans. 
Concrete temperature refers to the temperature of freshly mixed concrete.
• Concrete temperature affects the setting time and strength development of concrete.

• It is important to control the temperature of concrete during mixing, transportation, and placement.

• High temperatures can accelerate the setting time and reduce workability, while low temperatures can slow down setting and strength gain.

• Concrete temperature is typic...read more
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Q2. Precocious of water structure joint
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Precocious of water structure joint refers to the ability of a joint to withstand water pressure and prevent leakage.
• Water structure joints should be designed and constructed to be watertight.

• Various types of joints can be used in water structures, such as expansion joints, construction joints, and control joints.

• Proper sealing materials and techniques should be employed to ensure the integrity of the joints.

• Regular in...read more
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Q3. Cube test results in 7 days & 28 days
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Cube test results are used to determine the compressive strength of concrete at 7 and 28 days.
• Cube test involves casting cubes of concrete and testing them under compression

• Results are reported in terms of compressive strength in MPa or psi

• 7-day results are used to determine early strength and 28-day results are used to determine ultimate strength

• Concrete with a compressive strength of at least 20 MPa is considered sui
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Q4. 7 days Results 65% & 28 days Results 99.99%
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Q1. Piping work and structure work
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Aptitude test is for problem solving

Group discussion plays a majore role how employees connects to others and communicate with his colleagues and how dare he/she is..

Q1. Different types of mix design ?
Ans. 
Different types of mix design include nominal mix, standard mix, and design mix.
• Nominal mix design involves using standard ratios without testing.

• Standard mix design follows specific guidelines and proportions.

• Design mix design is customized based on specific project requirements.

• Examples: M20, M30, M40 mixes.
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Q2. Overlaping steel?
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Overlapping steel refers to the practice of placing steel bars on top of each other to increase strength and stability in construction.
• Overlapping steel bars helps distribute loads evenly and prevent structural failure.

• Properly overlapping steel bars is crucial for ensuring the structural integrity of a building.

• Commonly used in reinforced concrete structures such as beams, columns, and slabs.

• Overlap length and spacing...read more
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Q3. Soil Compaction test
Ans. Load bearing capacity of soli for any structural work test its density
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Q4. Ratio of mortar for plaster work
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The ratio of mortar for plaster work is typically 1:3 to 1:6, depending on the type of surface and desired finish.
• The most common ratio for plaster work is 1 part cement to 3 parts sand.

• For a smoother finish, the ratio can be adjusted to 1 part cement to 4 or 5 parts sand.

• In some cases, a 1:6 ratio (1 part cement to 6 parts sand) may be used for rough surfaces or base coats.

• Water should be added gradually to achieve th
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Q5. Quantity of brick in 50 squre meter
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The quantity of bricks in 50 square meters depends on the size of the bricks and the thickness of the wall being built.
• Calculate the area of the wall in square meters

• Determine the size of the bricks being used (e.g. standard size is 0.22m x 0.1m x 0.07m)

• Calculate the number of bricks needed by dividing the wall area by the area of one brick
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Q6. Bar bending schedule
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Q1. The panel asked me about my previous company & projects ,few technical Questions. Be confident & on point.
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Q1. What is curing,why it is done
Ans. 
Curing is the process of maintaining moisture and temperature conditions in concrete for a specific period to ensure proper hydration and strength development.
• Curing helps in preventing moisture loss from the concrete, which is essential for proper hydration.

• It helps in maintaining the desired temperature for the chemical reactions to occur.

• Curing enhances the strength, durability, and overall performance of the concre...read more
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What is the Substation ,
Why need cable trench,
How much room in substation

Q1. Substation in civil work
Ans. 
Substation in civil work involves the construction of buildings and structures to house electrical equipment for power distribution.
• Substation civil work includes site preparation, foundation construction, building erection, and equipment installation.

• Design considerations include safety, accessibility, and structural integrity.

• Examples of substation civil work include transformer foundations, control buildings, and sw
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Q2. What is the control room ??
Ans. 
The control room is a centralized location where monitoring, control, and coordination of various systems and processes take place.
• Centralized location for monitoring and controlling systems

• Used in industries like power plants, manufacturing plants, and transportation systems

• Equipped with control panels, computers, communication systems, and monitoring devices

• Allows operators to make real-time decisions and adjustments

• ...read more
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Q3. What for battery room
Ans. 
Battery rooms are designated areas where batteries are stored, charged, and maintained.
• Battery rooms are used to store batteries for backup power systems.

• They are equipped with charging stations and ventilation systems to ensure safety.

• Regular maintenance and inspections are conducted in battery rooms to ensure optimal performance.

• Battery rooms are common in industries such as telecommunications, data centers, and manu
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Q4. Why need cable trench
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Cable trenches are needed to protect and organize cables, prevent damage, and allow for easy maintenance and repairs.
• Protects cables from physical damage and environmental factors

• Organizes cables for easy identification and maintenance

• Facilitates easy access for repairs and upgrades

• Helps in preventing tripping hazards

• Ensures compliance with safety regulations and standards
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