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Differentiate between Hot rolling and Cold rolling
Hot Rolling
Hot rolling carried out to roll ingots into slabs,billets. On further hot rolling plates.l, bar rounds, structural shapes and rails are obtained. Because of limitations in equipment and workability if metal rolling is done is progressive steps.
Cold rolling:-
Cold rolling is a process used in manufacturing to shape metal sheets and strips. It involves passing the metal through a pair of rollers at room temperature, which compresses and elongates the material, reducing its thickness and altering its surface finish.
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Sap Warehouse Management Interview Questions With Answers
1. What is SAP Warehouse Management (WM)?
Answer: SAP Warehouse Management (WM) is a component of SAP Logistics Execution system (SAP LE) that provides flexible, automated support for processing goods movement and managing inventory in the warehouse.
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Mechanical spring, Spring material, Applications, Advantages, Disadvantages
A spring is mechanical device used for capable storage and free of energy. depending upon requirements, a spring take different shapes such as helical coil of wire, or a uniform, wound up strip.
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Bearing Material, Its Properties , Types and Applications
Bearing steel is a type of steel specifically designed and optimized for use in bearings, which are mechanical components used to reduce friction between moving parts and support loads. The main characteristics of bearing steel include high hardness, wear resistance, and strong fatigue strength.
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Fatigue failure With Example
It has been establish that the expanse of stress bring about fatigue failure decrease as the number of stress cycle in rise. This phenomenon of reduce resistance of the materials to fluctuating stress is called fatigue.
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Welding joints, definition, Application, Types of welded joints
Welding is an low price and structured method for obtaining a permanent joint of metallic parts.
Welding joints refer to the specific locations where two or more pieces of metal are joined together using various welding processes. The aim of welding joints is to create a strong and permanent bond between the materials.
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Gear lubrication and its types
Actual need of lubrication of gear teeth is essential for sufficient performance and durability of gears.
Gear lubrication is the process of applying a lubricating substance, typically oil or grease, to gears in machinery to reduce friction and wear between the moving parts. Gears in mechanical systems need proper lubrication to function efficiently and to prevent damage due to metal-to-metal contact and heat generation.
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Kinematic link its types and examples
All part of machine which pass through relative to some other part is known as kinematic link.
It is resistant body as assembly of machine connecting other parts of machine with relative motion between them.
A link may consist respective parts, which are rigidly seized on together so they not move corresponding to another.
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Zeroth law of Thermodynamics
Zeroth law of Thermodynamics’ states that if two systems are in equilibrium temperature first with second, two to third and first also with third so they are equal in temperature to each other.
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Types of gear train, application and information
A gear train combination of gears used to transfer motion from one shaft to another.
It is necessary when we have required to obtain large speed reduction in small piece.
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Multiple choice questions Fluid mechanics
Q.no.1. Fluid is a substance that
(a) cannot be subjected to shear forces
(b) expands until it fills any container
(c) has the same shear stress.at a point regardless of its motion
(d) cannot remain rest under action of any shear force
(e) flows.
Ans: (d)
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What is manometer?
Is device in which column of a suitable fluid are used to calculate the variance pressure between two point, may be adequate, some modifications of the tube are necessary and this modified tube is known as manometer.
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What is Barometer? Types, Unit and Example
A barometer is a scientific instrument used to measure atmospheric pressure. It helps in forecasting short-term changes in the weather.
Atmospheric pressure is the force exerted by the weight of air above any given point on the Earth's surface. Barometers can be either mercury-based or aneroid (using a small, flexible metal box).
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Mechatronics MCQ Questions With Answers
Q.no 1. Liquid level in LADDER sensor NC means normally
A : OPEN
B : CLOSE
C : OFF
D : IDEAL
Answer:- (B)
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Theory of machine, Cam follower MCQ with answers
Q.no.1. Cam follower generally use in aircraft engines is
A: Knife edge follower
B: Flat faced follower
C: Spherical faced follower
D: Roller follower
Answer:- (D)
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Definition, Example and Types Damping
In case of coulomb damping, the opposition is constant and thus there will be a constant difference error between the input and output under steady conditions.
Damping is process of reducing the energy within a system, typically by converting kinetic energy into other forms such as heat. Read more
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Worm and Worm Gear
A worm and worm gear are mechanical components used to transfer motion and power between non-intersecting shafts at a right angle. The worm resembles a screw, while the worm gear resembles a toothed wheel. Read More
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