Senior Mechanical Technician

10+ Senior Mechanical Technician Interview Questions and Answers

Updated 19 Nov 2024
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Q1. speed convertion calculation from driver to driven in case of belt drive.

Ans.

Speed conversion calculation in belt drive from driver to driven.

  • Determine the speed ratio between the driver and driven pulleys

  • Use the formula: Speed of driven pulley = Speed of driver pulley x (diameter of driver pulley / diameter of driven pulley)

  • Ensure that the units of measurement are consistent

  • Consider the effect of slip in the belt drive system

Q2. What are the different Between different Electrodes

Ans.

Electrodes differ in their composition, shape, and purpose.

  • Electrodes can be made of different materials such as tungsten, graphite, and copper.

  • They can have different shapes such as cylindrical, conical, and spherical.

  • Electrodes are used for different purposes such as welding, cutting, and electrochemical machining.

Senior Mechanical Technician Interview Questions and Answers for Freshers

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Q3. How to check white metal bearing clearance?

Ans.

White metal bearing clearance can be checked using a feeler gauge or plastigauge.

  • Use a feeler gauge to measure the clearance between the bearing and the shaft.

  • Alternatively, use plastigauge to measure the clearance by placing a strip of plastigauge between the bearing and the shaft, then measuring the flattened width of the plastigauge.

  • Compare the measured clearance with the manufacturer's specifications to determine if it falls within acceptable limits.

Q4. How many percent of the Other Gas in Earth

Ans.

The Other Gas in Earth is approximately 0.934% of the atmosphere.

  • Other Gas in Earth refers to gases other than nitrogen (78%) and oxygen (21%) in the atmosphere

  • Common gases in the Other Gas category include argon, carbon dioxide, neon, helium, and methane

  • These gases play important roles in maintaining Earth's atmosphere and climate

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Q5. How many Types of Welding?

Ans.

There are various types of welding techniques used in the industry.

  • Arc welding: Uses an electric arc to create heat and join metals.

  • Gas welding: Involves the use of a fuel gas and oxygen to create a flame for welding.

  • MIG welding: Uses a wire electrode and a shielding gas to join metals.

  • TIG welding: Utilizes a tungsten electrode and a shielding gas for precise and high-quality welds.

  • Spot welding: Joins metal sheets by applying pressure and heat at specific points.

  • Resistance we...read more

Q6. How to check journal bearing clearance?

Ans.

Journal bearing clearance can be checked using a feeler gauge or a dial indicator.

  • Use a feeler gauge to measure the gap between the journal and the bearing surface.

  • Alternatively, use a dial indicator to measure the radial movement of the journal within the bearing.

  • Ensure the journal is clean and free of debris before taking measurements.

  • Compare the measured clearance to the manufacturer's specifications for acceptable tolerances.

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Q7. How many percent of the Oxygen in Earth

Ans.

Oxygen makes up about 21% of Earth's atmosphere.

  • Oxygen makes up approximately 21% of Earth's atmosphere

  • The majority of the remaining atmosphere is composed of nitrogen

  • Oxygen is essential for respiration and combustion processes on Earth

Q8. Different types of bearing

Ans.

Bearings are used to reduce friction between two moving parts. There are several types of bearings.

  • Plain bearings: sliding contact between two surfaces

  • Rolling element bearings: balls or rollers between two surfaces

  • Jewel bearings: used in watches and clocks

  • Fluid bearings: use a fluid to reduce friction

  • Magnetic bearings: use magnetic fields to levitate the shaft

  • Tapered roller bearings: used in automotive and industrial applications

  • Thrust bearings: used to support axial loads

  • Sph...read more

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Q9. What is the preventive maintenance

Ans.

Preventive maintenance is a proactive approach to maintenance that involves regularly scheduled inspections, repairs, and replacements to prevent equipment failure.

  • Preventive maintenance involves regularly scheduled inspections, repairs, and replacements to prevent equipment failure.

  • It is a proactive approach to maintenance that aims to identify and fix potential problems before they become major issues.

  • Preventive maintenance can include tasks such as lubrication, cleaning, a...read more

Q10. Which element needs for occur fire

Ans.

The three elements needed for a fire to occur are fuel, oxygen, and heat.

  • Fuel: Any combustible material such as wood, paper, gasoline, or natural gas

  • Oxygen: A sufficient amount of oxygen in the air to support combustion

  • Heat: A heat source to raise the temperature of the fuel to its ignition point

Q11. Which Gas is dangerous in Human body .

Ans.

Carbon monoxide is a dangerous gas in the human body.

  • Carbon monoxide binds to hemoglobin in the blood, reducing its ability to carry oxygen.

  • Exposure to carbon monoxide can lead to symptoms like headache, dizziness, nausea, and confusion.

  • Prolonged exposure to high levels of carbon monoxide can be fatal.

  • Sources of carbon monoxide include car exhaust, faulty heating systems, and tobacco smoke.

Q12. What is mean line of fire

Ans.

Mean line of fire is the path that a projectile or bullet takes when fired from a weapon.

  • Mean line of fire is the trajectory that a projectile follows when fired from a gun or weapon.

  • It is important to understand the mean line of fire to ensure accuracy and safety when using firearms.

  • Factors such as distance, wind speed, and angle of elevation can affect the mean line of fire.

  • For example, a sniper must calculate the mean line of fire to accurately hit a target from a long dis...read more

Q13. How much type Haydraulic pump

Ans.

There are various types of hydraulic pumps used in mechanical systems.

  • Different types of hydraulic pumps include gear pumps, vane pumps, and piston pumps.

  • Gear pumps are simple and cost-effective, but have lower efficiency.

  • Vane pumps are more efficient and provide higher pressure, but are more complex.

  • Piston pumps are highly efficient and can handle high pressures, but are more expensive.

  • The choice of hydraulic pump depends on the specific application and system requirements.

Q14. How much type gear teeth

Ans.

The question is unclear and requires clarification.

  • Request clarification on what is meant by 'type gear teeth'.

  • Ask for more information or context to provide an accurate answer.

  • Without further details, it is not possible to answer the question.

Q15. Fats Information for job

Ans.

FATS information is an acronym for Fluids, Air, Temperature, and Steam, which are crucial elements in mechanical systems.

  • Fluids: Knowledge of different types of fluids used in mechanical systems, such as hydraulic fluids and lubricants.

  • Air: Understanding of air flow and pressure in mechanical systems, including pneumatic systems.

  • Temperature: Ability to monitor and control temperature levels in mechanical equipment to prevent overheating or freezing.

  • Steam: Familiarity with ste...read more

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