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TECHNICAL ROUND QUESTIONS OF MARUTI SUZUKI INDIA LIMITED

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Maruti Suzuki India Limited Mechanical Engg Questions and Answers

1. The purpose of jigs and fixtures are to a. Increased production rate
b. Increased machining accuracy
c. Facilitate interchangeable manufacturing
d. Enable employ less skilled operators
e. All of the above Ans:e
2. Tool life of the cutting tool is most affected by a. Cutting speed
b. Tool geometry
c. Cutting feed and depth
d. Microstructure of material being cut
e. Not using coolant and lubricant
Ans:a
3. A feeler gauge is used to check a. Radius
b. Screw pitch
c. Surface roughness
d. Unsymmetrical shape
e. Thickness of clearance
Ans:e
4. Metal in machining operation is removed by a. Tearing chips
b. Distortion of metal
c. Shearing the metal across a zone
d. Cutting the metal across a zone
e. Pushing the metal with tool
Ans:c
5. Ductility of material can be defined as a. Ability to undergo large permanent deformation in compression
b. Ability to recover its original form
c. Ability to undergo large permanent deformation in tension
d. All of the above

YOU MIGHT HAVE SEEN VARIOUS EMPLOYEES OF A FACTORY WEARING A HARD HAT OF DIFFERENT COLOR!!LET'S UNDERSTAND THE MEANING OF THIS COLOR CODE!

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You might have seen various employees of a factory wearing a hard hat of different color!!Let's understand the meaning of this color code!
Hard hats are made from hardened plastic and, as such, they have an expiry date because plastic deteriorates over time.  This means that they will need to be replaced periodically so it’s important that you check the expiry date on any hard hat that you use.  A hard hat’s service life starts when it is first used and that date should be recorded on the hat in indelible pen.  The maximum time for replacing a hard hat is five years, but it should be checked regularly for signs of wear or damage.  The hard hat suspension should be replaced on an annual basis – they’re widely available from work gear outlets.



Hard hats come in a range of colours, all of which are significant as it allows workers on site to identify who is who and what type of work they are undertaking.

DIFFERENCE BETWEEN PATH FUNCTION AND POINT FUNCTION NICELY EXPLAINED

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Point Function A point function is single valued function which always possesses a single - value is all states. For instance each of the thermodynamics properties has single - value in equilibrium and other states. These properties are called as point function or state function.In other words,we can say that point function are those function which depend upon the initial and final point of the curve and is not affected by the path of the curve ,even if the path of the function is changed but the initial and the final points are the same then the function will give the same value .Such as pressure, volume, enthalpy, internal energy.
Path Function Those properties, which cannot be located on graph by a point but are given by area or show on the graph.In other words,path function are those functions whose value depends upon the path traced by them .If their path is changed keeping the initial and final point same , their value will change.For example work, heat, heat transfer.


IMPORTANT TERMS OF FLUID MECHANICS

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Density (mass density): The mass per unit volume is defined as density. The unit used is kg/m3.The measurement is simple in the case of solids and liquids. In the case of gases and vapoursit is rather involved. The symbol used is ρ. Thecharacteristic equation for gases provides ameans to estimate the density from the measurement of pressure, temperature and volume.

Specific Volume: The volume occupied by unit mass is called the specific volume of the material. The symbol used is v, the unit being m3/kg. Specific volume is the reciprocal of density.In the case of solids and liquids, the change in density or specific volume with changesin pressure and temperature is rather small, whereas in the case of gases and vapours, densitywill change significantly due to changes in pressure and/or temperature.
Weight Density or Specific Weight: The force due to gravity on the mass in unit volume is defined as Weight Density or Specific Weight. The unit used is N/m3 .
Specific Gravity or Relative Dens…

MULTIPLE CHOICE QUESTIONS OF ENGINEERING DRAWING

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1-The following is not included in title block of drawing sheet. Sheet NoScaleMethod of ProjectionSize of sheet(Ans: d)
2-Which of the following represent reducing scale? 1:11:22:110:1(Ans: b)
3-In first angle projection method, object is assumed to be placed in First quadrantSecond quadrantThird Quadrant

ALL GAS LAWS

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Gas Laws explain the behavior of an ideal gas in terms of temperature, pressure, volume.
The following are the some of the important gas laws: Boyle’s LawCharles LawGay-Lussac’s LawAvogadro’s lawUniversal Gas Law Boyle’s Law:Boyle’s law states that the volume of a given mass of gas (V) is inversely proportional to its absolute pressure (P), provided the temperature of the gas (T) remains constant. Boyle’s law formula
Charles Law:According to Charles law, the volume of a given mass of gas (V) is directly proportional to its absolute temperature (T), when its pressure remains constant. Charles law formula
Gay-Lussac’s Law:Gay-Lussac’s Law is also know as Amontons’ law. It states that if the volume of a given mass of a gas (V) is kept constant, then the pressure of the gas (P) is directly proportional to its absolute temperature (T). Gay-Lussac’s Law Formula
Avogadro’s Law:Avogadro’s law states that equal volumes of different perfect gases, at the same temperature (T) and pressure (P), contain eq…

INTERVIEW QUESTIONS OF PRODUCTION TECHNOLOGY

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1) What do you mean by Smelting ?
Process of extraction of iron is called Smelting.

2) What do you understand by Specific Gravity and Tenacity ? Specific Gravity . It is the ratio of the mass of 1cubic cm. of a substance to the mass of the same capacity of water. Tenacity .It is the property of metal due to which a metal becomes strong enough to resist the pulling force.
3) Define the following metal properties (a) Machinability (b)Malleability
(a) Machinability is the property of metal due to which a metal can easily be cut by cutting tools to obtain good surface finish. E.g.: Brass, Mild steel (b) Malleability is the property of the metal on account of which it can be extended in all directions by hammering or rolling. E.g.: Tin, Lead
4) Define Hardness of the metal ?It is the property of the metal which makes a metal capable to resist surface penetration by other metals .Hard metals are High carbon steel and High speed steel. 5) What is the Toughness of metal ?
Toughness is the property of …