Blackberrys Executive Trainee Interview Questions and Answers

General aptitude 20 question and technical aptitude 30 question it is there

You have 3 minutes for entire group speak as much as possible

Q1. What is dyeing and types of dyeing
Ans. 
Dyeing is the process of adding color to textiles or other materials. There are various types of dyeing methods used in the industry.
• Dyeing is the process of imparting color to a textile material such as fibers, yarns, or fabrics.

• Types of dyeing include direct dyeing, yarn dyeing, piece dyeing, and garment dyeing.

• Direct dyeing involves applying dye directly to the fabric without the need for a mordant.

• Yarn dyeing is do...read more
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Q2. What does delta represent in CCM
Ans. 
Delta in CCM represents the change in the concentration of a chemical species over time.
• Delta is used to calculate the rate of change in concentration in Continuous-Flow Chemistry (CCM).

• It is often denoted as ΔC/Δt, where ΔC is the change in concentration and Δt is the change in time.

• Delta helps in monitoring the progress of a chemical reaction and optimizing reaction conditions.

• For example, if the concentration of a r...read more
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Q3. Difference between methods of printing
Ans. 
Different methods of printing include offset, digital, flexography, gravure, and screen printing.
• Offset printing uses plates to transfer ink onto a rubber blanket before printing onto the desired surface.

• Digital printing involves directly printing from a digital file onto the surface without the need for plates.

• Flexography uses flexible relief plates and is commonly used for packaging materials.

• Gravure printing uses en...read more
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Q4. What is test method for processed fabric
Ans. 
The test method for processed fabric involves evaluating various properties such as strength, colorfastness, shrinkage, and appearance.
• Testing for strength involves using a tensile testing machine to measure the maximum force a fabric can withstand before breaking.

• Colorfastness testing assesses how well a fabric retains its color when exposed to various conditions like washing, light, and rubbing.

• Shrinkage testing invo...read more
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Online aptitude test testing basic quantitative and logical reasoning ability of the candidate

Q1. Basic understanding of applied domain is tested in this round. It is a short online test
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Q1. Final interview with a pannel of two. One HR & one department head
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It was contains some GK and aptitude questions along with technical questions

Topic was provided to different groups to discuss on

Q1. General questions
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Q1. What is UDL and point load
Ans. 
UDL stands for Uniformly Distributed Load and Point Load is a concentrated load applied at a single point.
• UDL is a load that is spread uniformly over a beam or slab.

• Point Load is a load that is applied at a single point on a beam or slab.

• UDL is measured in kN/m or kN/m² while Point Load is measured in kN.

• Examples of UDL include the weight of a slab or the weight of people on a floor. Examples of Point Load include a he
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Q2. Bending moment diagram
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Bending moment diagram is a graphical representation of the variation of bending moment along the length of a beam.
• Bending moment diagram is used to determine the maximum bending moment in a beam.

• It helps in designing the beam and selecting the appropriate material.

• The diagram is plotted by taking the distance along the beam as the x-axis and the bending moment as the y-axis.

• The bending moment diagram for a simply supp...read more
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Q3. Compressive strength of M15 concrete
Ans. 
Compressive strength of M15 concrete is 15 N/mm² after 28 days of curing.
• M15 concrete is a mix of 1:2:4 (cement:sand:aggregate) with a water-cement ratio of 0.5.

• The compressive strength of M15 concrete is tested after 28 days of curing.

• The strength can vary depending on factors like quality of materials, curing conditions, etc.
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