| Workshop Calculation and Science

For a sample to be truly representative of the population, it must truly be:
a) Fixed
b) Random ✔
c) Specific
d) Casual
If the sample is truly representative of the population, then the characteristics of the sample can be considered to be the same as those of the ______ population.
a) Fixed
b) Selected
c) Random
d) Entire ✔
The purpose of heat treatment is:
a) To change the mechanical properties of steel
b) To change the internal structure of steel ✔

If one angle of a triangle equals the sum of the other two, the triangle is:
a) Right angle triangle ✔
b) Isosceles triangle
c) Acute angled triangle
d) Obtuse angled triangle
Angles in ratio 2:4:3 → smallest angle =
a) 60°
b) 40° ✔
c) 80°
d) 20°
Part of circumference of a circle is called:
a) Diameter
b) Radius
c) Arc ✔
d) Chord
Number of tangents from a point on the circle:
a) 2
b) 3
c) 0
d) Infinite ✔

Velocity, Density and Acceleration are known as:
a) Fundamental quantities
b) Derived quantities ✔
c) Similitude
d) SI unit
A sheet 10 m × 5 m is cut into pieces of 25 cm × 20 cm. Number of pieces:
a) 800 pieces
b) 825 pieces
c) 1000 pieces ✔
d) 725 pieces
Sin (90 + θ) =
a) Cos θ ✔
b) Tan θ
c) Sin θ
d) Sec θ
The unit of work is:
a) Joule ✔
b) Watt
c) Newton
d) Pascal
36 inches = ______ cm
a) 80.5
b) 91.44 ✔
c) 101.88

The coefficient of friction μ is equal to:
a) F/R ✔
b) F × R
c) R/F
d) None of these
What will be the coefficient of friction when a force of 30 N is required to move a mass of 5 kg?
a) 0.0875
b) 0.8
c) 0.795
d) 0.695 ✔
When frictional force is equal to applied force, it is known as:
a) Dynamic friction
b) Limiting friction ✔
c) Sliding friction
d) Rolling friction
The property of one surface to oppose motion of another is called:
a) Force

What is the correct value of π?
a) 22/7 ✔
b) 7/22
c) 3.4
d) 3/4
The outer diameter of a pipe is 100 cm, then the outer circumference will be:
a) 62.8 m²
b) 628.32 mm²
c) 6283.2 m²
d) 628.32 cm ✔
The pressure is given by:
a) Force / Area ✔
b) Area / Force
c) Stress / Strain
d) Strain / Stress
2.5 tonnes can be expressed in kg as:
a) 250 kg
b) 25 kN
c) 250 N
d) 2500 kg ✔
Tanθ is equal to:
a) Cosθ / Sinθ

Workshop Calculation & Science - MCQs