Classification of Unit System

Anand 11 September 2021

Necessity
All physical quantities are to be measured in terms of standard quantities.

Unit
A unit is defined as a standard or fixed quantity of one kind
used to measure other quantities of the same kind.

Classification
Fundamental units and derived units are the two classifications.

Fundamental units
Units of basic quantities of length, mass and time.

about

Units

System of Units

S.I. Units

Conversion of Units

S.I. Prefixes and Multiplication Factors

Quantities and Units

Fractions

Fractions

Least Common Multiple (L.C.M.)

Highest Common Factor (H.C.F.)

Conversion of Fraction to Decimal and Vice versa

Scientific Calculation

Square Roots

Square Root

Rationalisation

Simple Calculator

Ratio and Proportion

Ratio

Proportion

Time, Work and Labour Related Problem

Average

Percentage

Fundamental and Derived Units F.P.S, C.G.S, M.K.S and SI Units

Anand 26 January 2021
  • F.P.S system is the British system in which the basic units of length, mass and time are foot, pound and second respectively.
  • C.G.S system is the metric system in which the basic units of length, mass and time are centimeter, gram and seconds respectively.
  • M.K.S system is another metric system in which the basic units of length, mass and time are metre, kilogram and second respectively
  • S.I.

Workshop Calculation and Science

Old Syllabus (Before 2019)

Workshop Calculation

Unit: Systems of unit- FPS, CGS, MKS/SI unit, unit of length, Mass and time, Conversion of units

Fractions : Fractions, Decimal fraction, L.C.M., H.C.F., Multiplication and Division of Fractions and Decimals, conversion of Fraction to Decimal and vice versa. Simple problems using Scientific Calculator.

Square Root : Square and Square Root, method of finding out square roots, Simple problem using calculator.

Workshop Calculation and Science

Old Syllabus (Before 2019)

ore skills enhance knowledge, Analytical ability, problem solving ability, understanding or comprehending drawings & designs and also enriches on scientific principles. At the same time it creates the base for achieving Hard skills. To carry out any skill related task the know how about basic science & related calculation is essential as it helps in scientific way of executing the task.

Monthly test (November-2015)

WORKSHOP CALCULATION AND SCIENCE
Monthly test (November-2015)
Time: 1:30 hours
Total marks: 50
1. A piece of alloy weighing 80grams consists of 60grams of copper and the remaining is zinc. The ratio of
copper to zinc is...
a) 3:2

b) 3:4

c) 3:1


d) 3:3


2. 1200kg of mild steel 25% of metal is cul and removed. The net weight of remaining
a) 600kg


b) 700kg

c) 900kg

SEM I 1 Jan 18

Choose the correct answers:
 1 .0.2 Kg =
a) 200 gram
b) 20 gram
c) 2 gram
d) None of these


2.The number1/2 x 1/2 ÷ 1/3 is equal to -

a) 1

b) 1/2

c) 2

d) 1/4
  

3.One gallon is equal to__________ litres.
a) 4.1 litre
b) 4.24 litre
c) 4.50 litre
d) 4.54 litre


4.Reciprocal of -5 is-
a) -1/5

b) 1/5

c) +5

d) 1


5. Sum of Number 7/12 & -5/16 is equal to -
a) -7/48

b) -11/30

c) 13/48