Unit I
Q1. Why there is necessity of a SI system of units? Explain this with two examples
What are FPS, CGS, MKS and SI systems of units. Any two examples of each. 8
Q2. Differentiate between scalar and vector quantities.
Q3 Explain the Concept of least count of a measuring instrument
Unit II
Q4. Define Fundamental and derived quantities: Explain Concept of fundamental and derived
quantities with examples.
Q5. Explain Distance, displacement, area, volume, mass, density, speed, velocity with their SI units.
Unit III
Q6. Statements of Newton’s laws of motion, and two examples each.Explain the importance use
of lubricants, washers, ball bearings, surface coating, surface polishing, design .
Q7. Concept and definition of friction, types of friction (static and dynamic), friction as an
advantage and disadvantage (at least five situations), measures to minimize undesired friction. (8 marks)
Unit IV
Q7. Explain the components of a computer system with block diagram. working of each block.
concept of software and hardware.
Q8. Define Memory Unit.
Explain relation between Bit,byte with megabyte, gigabyte, terabyte.
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