R K Marbles Interview Questions and Answers

My Name is Akash
My father name Shri Rajkishor
I am from Kushinagar ( Uttar Pradesh)
My data of birth 05/04/2005
My diploma course in mechanical engineering

My mobile no XXXXX

Q1. What is diesel engine
Ans. 
A diesel engine is a type of internal combustion engine that uses compression ignition to burn fuel.
• Diesel engines are commonly used in trucks, buses, and some cars.

• They are more fuel efficient than gasoline engines.

• Diesel engines have higher torque output compared to gasoline engines.

• They do not have spark plugs, instead relying on compression to ignite the fuel.

• Diesel engines are known for their durability and longev
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Q2. What is hydraulic system
Ans. 
A hydraulic system is a technology that uses liquid to transmit power.
• Uses incompressible fluid to generate power

• Consists of a pump, valves, cylinders, and hydraulic fluid

• Commonly used in heavy machinery like excavators and cranes
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Q3. What is 4stock engine
Ans. 
A 4-stroke engine is an internal combustion engine that completes four separate strokes in the combustion cycle: intake, compression, power, and exhaust.
• 4-stroke engines are commonly used in automobiles, motorcycles, and small engines like lawnmowers.

• They are more fuel-efficient and produce less pollution compared to 2-stroke engines.

• Examples of vehicles with 4-stroke engines include cars, trucks, and SUVs.
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Q1. What is thermal power
Ans. 
Thermal power is the energy generated from heat, typically through the combustion of fossil fuels or nuclear reactions.
• Thermal power plants use steam turbines to convert heat energy into mechanical energy

• Common sources of thermal power include coal, natural gas, and nuclear fuel

• Thermal power generation can contribute to air pollution and greenhouse gas emissions
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Q2. What is 4sto k engine
Ans. 
4-stroke engine is a type of internal combustion engine commonly used in vehicles and machinery.
• 4-stroke engines have four stages: intake, compression, power, and exhaust.

• They are more fuel efficient and produce less emissions compared to 2-stroke engines.

• Examples of vehicles with 4-stroke engines include cars, motorcycles, and trucks.
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Q1. What is frl and enumati
Ans. 
FRL stands for Filter, Regulator, Lubricator and Enumati is not a recognized term in the maintenance field.
• FRL is a combination of components used in pneumatic systems to filter, regulate pressure, and lubricate the air supply.

• Examples of FRL components include air filters to remove contaminants, regulators to control pressure, and lubricators to add oil to the air.

• Enumati does not have a known meaning or usage in main
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Q2. Full from fitter
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Q3. Type of baring a
Ans. 
There are various types of bearings used in machinery, such as ball bearings, roller bearings, and plain bearings.
• Ball bearings use balls to reduce friction between two surfaces, commonly found in wheels and pulleys.

• Roller bearings use cylindrical rollers to reduce friction, commonly found in conveyor belts and gearboxes.

• Plain bearings have a simple design with a sliding surface, commonly found in hinges and bushings.
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Q4. Callsificatin of fill offjob
Ans. 
Fill offjob is a term used in maintenance to classify tasks that are completed outside of regular working hours.
• Fill offjob tasks are typically scheduled during weekends or holidays to minimize disruption to regular operations.

• Examples of fill offjob tasks include major equipment repairs, facility upgrades, and preventive maintenance activities.

• Maintenance fitters may be required to work on fill offjob tasks to ensure ...read more
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Q5. List count of varniar calipat
Ans. 
The count of varniar calipat is not a standard term in the maintenance fitter field.
• There is no standard definition or reference for varniar calipat in maintenance fitting.

• It is possible that the term is specific to a certain company or industry, in which case the count would depend on their specific requirements.

• It would be best to ask for clarification on the term or context in which it is being used.
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Q6. Calcification of fill
Ans. 
Calcification of fill refers to the accumulation of calcium deposits in a filling material.
• Calcification of fill can occur in dental fillings, causing them to harden and potentially crack over time.

• This process can also occur in industrial settings, such as in pipelines where calcium deposits build up and restrict flow.

• Preventative measures such as regular cleaning and maintenance can help reduce the risk of calcificat
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Q7. List count of bor gauge
Ans. 
The count of bore gauges refers to the number of bore gauges available for use in maintenance tasks.
• Check the inventory records for the number of bore gauges on hand

• Count the physical bore gauges in the maintenance department

• Consult with colleagues or supervisors to confirm the count

• Ensure all bore gauges are accounted for and in working condition
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Q1. What is the unit of resistance?
Ans. 
The unit of resistance is ohm (Ω).
• The unit of resistance is measured in ohms (Ω).

• Resistance is denoted by the symbol 'R' in equations.

• One ohm is equal to one volt per ampere (1 Ω = 1 V/A).
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Q2. What is the meaning of current?
Ans. 
Current is the flow of electric charge in a circuit.
• Current is the rate of flow of electric charge in a circuit.

• It is measured in Amperes (A).

• Current flows from positive to negative terminal in a circuit.

• There are two types of current - AC (Alternating Current) and DC (Direct Current).
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Q3. What is magnet?
Ans. 
A magnet is an object that produces a magnetic field and attracts certain materials like iron.
• A magnet has two poles - north and south.

• Opposite poles attract each other while like poles repel.

• Magnets can be natural (lodestone) or man-made (permanent magnets).
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Q4. What is the working principle of transformer?
Ans. 
Transformer works on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
• Transformers have two coils of wire, known as primary and secondary coils.

• When an alternating current flows through the primary coil, it creates a changing magnetic field.

• This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.

• The ratio of the number of ...read more
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Q5. Value of Indian frequency?
Ans. 
The value of Indian frequency is 50 Hz.
• The standard frequency used in India for electrical power distribution is 50 Hz.

• This frequency is used for both residential and industrial purposes.

• It is important for ensuring compatibility of electrical equipment and appliances.

• In contrast, countries like the United States use a frequency of 60 Hz.
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Q6. What is the unit of current?
Ans. 
The unit of current is Ampere (A).
• The unit of current is Ampere (A)

• It is named after the French physicist Andre-Marie Ampere

• Current is the flow of electric charge in a circuit
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Q7. What is the meaning magnetic field?
Ans. 
A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
• A magnetic field is produced by moving electric charges or magnetic materials.

• It exerts a force on other moving charges and magnetic materials within its vicinity.

• The strength and direction of a magnetic field can be represented by magnetic field lines.

• Examples include the Earth's magnetic field
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Q8. Law's of resistance?
Ans. 
The laws of resistance describe how the resistance of a material is affected by factors such as length, cross-sectional area, and temperature.
• Resistance is directly proportional to the length of the material - longer materials have higher resistance.

• Resistance is inversely proportional to the cross-sectional area of the material - larger cross-sectional areas have lower resistance.

• Resistance increases with temperature ...read more
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Q9. Relationship between current, voltage and resistance?
Ans. 
The relationship between current, voltage, and resistance is described by Ohm's Law.
• Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor.

• Mathematically, Ohm's Law is expressed as I = V/R, where I is the current in Amperes, V is the voltage in Volts, and R is the resistance in Ohms.

• This relati...read more
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