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I applied via Naukri.com and was interviewed in Feb 2021. There were 3 interview rounds.
There are two types of vibration - free and forced. Free vibration occurs when a system oscillates on its own, while forced vibration occurs when an external force is applied to the system.
Free vibration occurs when a system is disturbed and then allowed to oscillate on its own without any external force acting on it.
Forced vibration occurs when an external force is applied to a system, causing it to vibrate at a speci...
Maintenance of ball mill and its associated equipment involves regular inspection, cleaning, lubrication, and replacement of worn parts.
Regularly inspect the ball mill and its associated equipment for any signs of wear or damage
Clean the ball mill and its associated equipment regularly to prevent buildup of debris and dirt
Lubricate the ball mill and its associated equipment as per the manufacturer's recommendations
Repl...
Open circuit has a break in the circuit, while closed circuit has a complete path for current flow.
Open circuit has a switch that is turned off or a broken wire, which prevents current flow.
Closed circuit has a switch that is turned on or a complete path for current flow.
Open circuit does not allow electricity to flow, while closed circuit allows electricity to flow.
Examples of open circuit include a light switch turne...
The total length of ball mill liners and diaphragm slot size depend on the make and model of the mill.
The length of the liners and size of the diaphragm slot can vary depending on the manufacturer and model of the ball mill.
The liner categories can include single wave, double wave, or corrugated liner designs.
The diaphragm slot size can range from a few millimeters to several centimeters, depending on the size of the m...
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posted on 10 May 2024
I applied via Indeed
Hydraulic circuit diagram and maintenance types
Hydraulic circuit diagram shows the flow of hydraulic fluid in a system
Types of maintenance for hydraulic systems include preventive maintenance, predictive maintenance, and corrective maintenance
Preventive maintenance involves regular inspections and replacements to prevent breakdowns
Predictive maintenance uses data and analytics to predict when maintenance is needed
Corre...
I applied via Walk-in and was interviewed in Jul 2024. There was 1 interview round.
I applied via Company Website and was interviewed in Mar 2022. There was 1 interview round.
Precautions must be taken to ensure safety while opening the pump.
Ensure that the pump is isolated from the power source.
Release any pressure in the pump before opening it.
Wear appropriate personal protective equipment (PPE) such as gloves, goggles, and a face shield.
Follow the manufacturer's instructions for opening the pump.
Use proper tools and equipment to avoid damaging the pump or injuring yourself.
Inspect the pum...
posted on 9 Jan 2022
I applied via Walk-in and was interviewed in Jul 2021. There were 3 interview rounds.
Hydraulics is a branch of engineering that deals with the mechanical properties of liquids, especially water or oil, and their applications.
Hydraulics involves the study of fluid mechanics and the behavior of liquids under pressure.
It is used in various applications such as hydraulic machinery, hydraulic systems, and hydraulic power transmission.
Hydraulic systems use fluid pressure to generate, control, and transmit po...
Control valves are used to regulate the flow, pressure, temperature, or level of a fluid in a system.
There are several types of control valves, including globe valves, butterfly valves, ball valves, and plug valves.
Globe valves are commonly used for throttling and regulating flow.
Butterfly valves are often used for large flow rates and low-pressure applications.
Ball valves provide quick shut-off and are suitable for on...
Helical gearboxes are commonly used in the steel industry.
Helical gearboxes are preferred in the steel industry due to their high efficiency and smooth operation.
These gearboxes provide better load distribution and reduce noise and vibration.
They are capable of handling heavy loads and high torque requirements.
Helical gearboxes are commonly used in steel rolling mills, steel processing plants, and other steel manufactu
Check in bearing is a type of bearing that allows axial movement while preventing radial movement.
Check in bearing is designed to accommodate axial loads.
It allows movement in one direction while preventing movement in the opposite direction.
This type of bearing is commonly used in applications where axial displacement is required, such as in automotive suspensions.
An example of a check in bearing is a thrust bearing u
Servo valve nas value refers to the National Aerospace Standard (NAS) specification for servo valves.
NAS value is a standard that defines the performance and quality requirements for servo valves used in aerospace applications.
It ensures that servo valves meet specific criteria for reliability, accuracy, and durability.
NAS value is often used as a reference when selecting or evaluating servo valves for aerospace system...
posted on 20 Jan 2022
posted on 17 Jun 2021
I applied via LinkedIn and was interviewed in May 2021. There were 4 interview rounds.
Bearings are of various types such as ball, roller, plain, etc. Furnace maintenance includes cleaning, inspection, and replacement of parts.
Different types of bearings are used in mechanical systems depending on the load and speed requirements.
Ball bearings are commonly used in high-speed applications while roller bearings are used in heavy load applications.
Plain bearings are used in low-speed and high-load applicatio...
posted on 4 Sep 2021
I applied via Recruitment Consultant and was interviewed before Sep 2020. There was 1 interview round.
I applied via LinkedIn and was interviewed before Dec 2022. There were 4 interview rounds.
Basic engineering questions
The least count of a vernier caliper is the smallest measurement that can be read on the scale.
The least count is typically 0.02 mm or 0.001 inches on a vernier caliper.
It is determined by dividing the smallest division on the main scale by the total number of divisions on the vernier scale.
For example, if the main scale has divisions of 1 mm and the vernier scale has 50 divisions, the least count would be 0.02 mm.
The least count of 0.02 means that the smallest measurement that can be accurately read on the measuring instrument is 0.02 units.
Least count is the smallest measurement that can be accurately read on a measuring instrument.
In this case, the least count is 0.02 units, meaning any measurement can be read in increments of 0.02.
It is important to consider the least count when taking measurements to ensure accuracy.
I applied via Naukri.com and was interviewed in May 2023. There were 2 interview rounds.
Some of the top questions asked at the Calderys India Refractories Assistant Engineer Mechanical interview -
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