Classification of Unit System
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.
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Fundamental and Derived Units F.P.S, C.G.S, M.K.S and SI Units
- 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.
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
SEM II 2 July 17
PART- A (WORKSHOP CALCULATION & SCIENCE)
(75)
Choose the correct answer:
1.If the area of square plate is 2025 mm2, then find the side-
a. 65 mm
b. 55 mm
c. 45mm
d. 35 mm
Sem III 3 Jan 18
Choose the correct answer.
1. Which of following is rule of indices?
a) xa ÷ xb = xa+b
b xa ÷ xb = xa-b
c x6 ÷ xb= xab
d) All of these
2. If the sum of roots are 12 and product of roots is 30, then the equation will be_____
a) x2-10x+30=3
b) x²-10x-30=0
c) x²-30x+10=1
d) None of these
sem- 2 02-July-2018
Choose the correct answer.
1.Tan45°, cot 45°=
a. 1
b.1/2
c.1/√2
d. 0
2. Circumference of a circle is given by______
a. πD
b. 2r
c. Both (a) & (b)
d. Neither a nor b
3.The area of a parallelogram is 72 cm and its altitude is twice the corresponding base. Then
the length of the base is_____.
a. 12 cm
b. 9 cm
C. 6 cm
d. 3 cm
4.The ratio of area of a circle to the area of semi-circle is-
a. 1:2
b .2: 1
c..4:1
d.1:4
choose the correct answers .
Choose the correct answers:
1. 0.1 x 0.01 =
a) 0.1
b) 0.01
c) 0.001
d) 0.0001
WORKSHOP CALCULATION & SCIENCE SEM 2 JAN 2018
WORKSHOP CALCULATION & SCIENCE SEM 2 JAN 2018
1. Which one of the following is equal to am X an
m n mn m/n
b) a
Mechanical equivalent of heat is ........
a) 4200 J/kgoc
b) 42.00 J/kgoc
c) 420.0 J/kgoc
d) 4.20 J/kgoc
Basic unit of current is
a) Micro amps
b) Millie amps
c) Amps
d) Kilo amps
Find the value of y if (3/5) .....(15/5y) = 3/4
b) -98 c) -100 d) -102
SEM III 3 July 18
MARKS: 75
Note: Attempt All the questions.
All questions carry equal marks.
Choose the correct answers:
1.Which of the following property is affected by heat treatment?
(a) Hardness
(b) Strength
(c) Ductility
(d) All of these
2. Annealing involves heating the component to a temperature......
(a) Slightly below the critical temperature
(b) Equal to critical temperature
(c) Slightly above the critical temperature
(d) None of these