Dexcel Electronics Designs Interview Questions and Answers

We have 25 questions and negative marking is there

Q1. What are storage classes in c language?
Ans. 
Storage classes in C language define the scope and lifetime of variables.
• There are four storage classes in C: auto, register, static, and extern.

• Auto variables are local to the block they are declared in and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared outside of any function and ...read more
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Q2. How many address lines are present in 1kb memory?
Ans. 
There are 10 address lines present in 1kb memory.
• 1kb memory = 1024 bytes

• To address 1024 bytes, 10 address lines are needed (2^10 = 1024)
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Q1. Program on array , reverse the array
Ans. 
Reverse an array of strings
• Create a new array to store the reversed strings

• Iterate through the original array in reverse order and add each element to the new array

• Return the new array as the reversed array
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Q2. Logic gates, what is the output of this .they will ask by showing picture
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Q1. How many ph mainten nickel crystal
Ans. 
The question is unclear and seems to be asking about the number of pH maintenance nickel crystals.
• It is unclear what 'ph mainten nickel crystal' refers to

• It is possible the interviewer made a mistake in phrasing the question

• Ask for clarification or provide an educated guess based on context
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Q2. How many ph mainten raw material dissolve in water and leaching time
Ans. 
pH maintenance raw materials dissolve in water and leaching time depend on the specific material and conditions.
• The number of pH maintenance raw materials that dissolve in water varies depending on the specific materials being used.

• Leaching time can also vary based on factors such as temperature, pH level, and agitation.

• Examples of pH maintenance raw materials include limestone, dolomite, and hydrated lime.
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Q3. How many mainten nickel gpl
Ans. 
The question is unclear and seems to be asking for the number of maintenance nickel GPL, which is not a standard term.
• It is unclear what 'mainten nickel GPL' refers to

• Ask for clarification or more context from the interviewer

• Provide examples of similar terms or concepts you are familiar with
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Q4. How many mainten nickel %
Ans. 
The question is unclear and seems to be asking for a percentage of maintenance nickel.
• Ask for clarification on what 'mainten nickel %' refers to

• Provide examples of different interpretations of the question

• Offer to discuss the topic further to gain a better understanding
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Q5. How many mainten solid % nickel
Ans. 
The question is unclear and lacks context. It seems to be asking about the percentage of nickel in a maintenance solid, but more information is needed for a precise answer.
• Request clarification on the type of maintenance solid being referred to (e.g. metal alloy, coating, etc.)

• Ask for the specific context in which the nickel percentage is relevant (e.g. for corrosion resistance, strength, etc.)

• Provide examples of diffe...read more
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General aptitude questions. Easy to solve. Didn’t take much time

Q1. Explain operation of rc circuit
Ans. 
An RC circuit consists of a resistor and a capacitor connected in series or parallel, used for filtering, timing, and signal processing.
• RC circuit operation is based on the charging and discharging of the capacitor through the resistor.

• When a voltage is applied to the circuit, the capacitor charges up to the applied voltage through the resistor.

• The time constant (RC) determines how quickly the capacitor charges or disc...read more
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Q2. Draw waveform for diode
Ans. 
A diode waveform typically shows a voltage drop when forward biased and no current flow when reverse biased.
• Forward biased: voltage drop across diode, current flows

• Reverse biased: no current flow, diode acts as open circuit
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Q1. Questions based on my project
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Basic questions not complicated need fundamental

Q1. What is resistance
Ans. 
Resistance is the opposition to the flow of electric current in a circuit.
• Resistance is measured in ohms (Ω).

• It is caused by collisions between electrons and atoms in a material.

• Higher resistance leads to lower current flow.

• Resistance can be controlled by changing the material, length, or cross-sectional area of a conductor.

• Examples of high resistance materials include rubber and glass, while copper and silver have low
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Q2. What is pcb and what is electronics
Ans. 
PCB stands for Printed Circuit Board, which is a board used to mechanically support and electrically connect electronic components. Electronics is the study and application of electrical circuits and devices.
• PCB is a board made of non-conductive material with conductive tracks for connecting electronic components.

• Electronics is the study and application of electrical circuits and devices.

• PCBs are used in various electr...read more
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Q3. About electronics industry
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Q4. About thecompany
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Q5. About the transistor
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