Volvo Buses Interview Questions, Process, and Tips

Q1. What is emf? volt and watt different
Ans. 
EMF stands for electromotive force, which is the voltage generated by a source such as a battery. Volt is the unit of measurement for voltage, while watt is the unit of measurement for power.
• EMF is the voltage generated by a source of electrical energy, such as a battery

• Volt is the unit of measurement for voltage, representing the potential difference between two points in a circuit

• Watt is the unit of measurement for p...read more
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Q2. What difference hidrulic and hidrulic Machine?
Ans. 
Hydraulic machines use fluid power to perform work, while hydraulic machines are machines that utilize hydraulic power.
• Hydraulic machines use fluid power to generate force and motion, such as hydraulic presses and hydraulic cylinders.

• Hydraulic machines are machines that utilize hydraulic power, such as excavators and forklifts.

• Hydraulic machines are often used in heavy-duty industrial applications, while hydraulic mach...read more
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Q3. What is definition of machine
Ans. 
A machine is a device that uses energy to perform a specific task or function.
• A machine is typically made up of various components that work together to achieve a desired outcome

• Machines can range from simple tools like a hammer to complex systems like a computer

• Examples of machines include cars, washing machines, and robots
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Q4. How work 2 stroke or 4 stroke ingine ?
Ans. 
2 stroke engines have a power cycle with two strokes (up and down) of the piston in one revolution, while 4 stroke engines have four strokes (intake, compression, power, exhaust) in two revolutions.
• 2 stroke engines have a simpler design with fewer moving parts compared to 4 stroke engines

• 2 stroke engines require a mixture of oil and fuel for lubrication, while 4 stroke engines have a separate oil reservoir for lubricat...read more
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Q5. Columa law? difine and rincople
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Q6.  principle of least count ?
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The principle of least count is the smallest measurement that can be made by a measuring instrument.
• It is the smallest increment that can be measured by the instrument.

• It is determined by the precision of the instrument.

• For example, a ruler with markings at every millimeter has a least count of 1 mm.

• In a digital caliper with a resolution of 0.01 mm, the least count is 0.01 mm.
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Q7.  vernier caliper and vernier scale define?
Ans. 
Vernier caliper is a measuring tool used to take precise measurements, with a vernier scale providing additional accuracy.
• Vernier caliper is a tool used for measuring dimensions accurately.

• It consists of a main scale and a vernier scale for more precise readings.

• The vernier scale allows for measurements to be taken to a higher degree of accuracy than just the main scale alone.

• Commonly used in engineering, manufacturing...read more
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20 questions 40 minutes, 3 type of question easy, medium and hard each of 1, 3 and 5 points respectively, if you answer correct then you move above in difficulty else go down.

Q1. 20 questions 40 minutes same pattern as apti. Questions mainly from power electronics, network theory, machines and analog electronics
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Q2. 2 coding question one easy, one medium. Doing 1 question only may work
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Q1. Picked question from my cv/ project. Complete analysis of boost converter, voltage at no load, saturation of inductor, parasitics etc and much more.
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Q2. Bjt as switch opams mosfet on off charecteristics etc, analog electronics.
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Q3. 2 easy coding problem of searching and sorting algos
Ans. 
Implementing binary search and bubble sort algorithms in Python
• Binary search: Divide and conquer algorithm to find a target value in a sorted array

• Bubble sort: Iteratively swap adjacent elements if they are in the wrong order

• Example for binary search: def binary_search(arr, target):

• Example for bubble sort: def bubble_sort(arr):
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