10+ Interview Questions and Answers

The minimum temperature of any substance that we could reach and use for practical purposes is absolute zero, which is -273.15 degrees Celsius or 0 Kelvin.

• The minimum temperature is known as absolute zero.

• It is the lowest possible temperature that can be reached.

• At absolute zero, all molecular motion ceases.

• Practical applications include cryogenics and superconductivity.

• Examples of practical uses are in medical imaging, particle accelerators, and space exploration.

I would like to design electronic components with heat transfer applications.

• I have a strong interest in electronics and how heat can be managed in electronic systems.

• I enjoy working on projects that involve designing and optimizing electronic components for efficient heat dissipation.

• I have experience in conducting thermal analysis and simulations to ensure proper heat transfer in electronic devices.

• I find it fascinating to explore innovative ways to improve heat dissipation...read more

Spark plug ignites fuel-air mixture in IC engines. DTSI improves combustion efficiency. 2-stroke and 4-stroke engines differ in number of strokes per cycle.

• Spark plug ignites the fuel-air mixture in the combustion chamber

• DTSI (Digital Twin Spark Ignition) is a technology used to improve combustion efficiency by using two spark plugs

• 2-stroke engines complete one power stroke in two strokes of the piston, while 4-stroke engines complete one power stroke in four strokes of the p...read more

Humidity ratio is measured using two types of instruments: psychrometers and hygrometers.

• Psychrometers measure humidity ratio by comparing the readings of two thermometers: a dry-bulb and a wet-bulb thermometer.

• Hygrometers measure humidity ratio using various principles such as electrical resistance, capacitance, or condensation.

• A 1 ton refrigerator refers to the cooling capacity of the refrigerator, which is equivalent to removing 12,000 British Thermal Units (BTUs) of heat ...read more

There are three laws of thermodynamics. Each law has specific applications. dB Amp is not related to thermodynamics.

• The first law of thermodynamics, also known as the law of energy conservation, states that energy cannot be created or destroyed, only transferred or transformed.

• The second law of thermodynamics states that the entropy of an isolated system always increases over time.

• The third law of thermodynamics states that as the temperature approaches absolute zero, the ent...read more

The choice between Al and Mg for designing depends on the specific requirements and constraints of the project.

• Aluminum (Al) is lightweight, corrosion-resistant, and has good thermal conductivity, making it suitable for applications where weight reduction is important, such as aerospace.

• Magnesium (Mg) is even lighter than aluminum, but it has lower strength and is more prone to corrosion. It is commonly used in automotive components to reduce weight and improve fuel efficienc...read more

A rocket is a vehicle that propels itself through the atmosphere or space, while a missile is a weapon that is guided towards a target.

• Rockets are used for space exploration, satellite launches, and transportation, while missiles are used for military purposes.

• Rockets are typically unmanned and used for peaceful purposes, while missiles are often armed and used for warfare.

• Rockets are designed to carry payloads such as satellites or scientific instruments, while missiles are ...read more

There are several types of counters that can be used to design a divide by 5 counter.

• Ripple counter

• Synchronous counter

• Johnson counter

• Ring counter

Wind tunnels are used to study the effects of air on objects. Materials and their properties play a crucial role in wind tunnel experiments.

• Wind tunnels are used to simulate the flow of air around objects, allowing scientists to study aerodynamics.

• Different materials have different properties that can affect the results of wind tunnel experiments.

• Materials with low drag coefficients, such as smooth metals, are often used in wind tunnel testing.

• Understanding the properties of ...read more

Modes of vibrations of beans refer to the different ways in which beans can oscillate or vibrate.

• Beans can vibrate in different modes depending on their shape, size, and material properties.

• Some common modes of vibrations in beans include bending, twisting, and radial vibrations.

• The mode of vibration affects the frequency, amplitude, and pattern of the bean's oscillation.

• Understanding the modes of vibrations in beans can be important in various fields such as food processing,...read more