WorksheetsUnit-1
Total questions: 10
Worksheet time: 5mins
What is the correct formula for calculating stress?
a) Force × Area
b) Force / Area
c) Change in Length / Original Length
d) Mass × Acceleration
A cantilever is a beam that is fixed at:
a) Both ends
b) One end
c) Its center
d) Neither end
Young's Modulus Young's Modulus (Y) is a measure of a material's:
a) Density
b) Stiffness or resistance to stretching
c) Ability to conduct heat d) Volume
d) Volume
Why are steel girders often made in an I-shape?
a) To make them look more attractive
b) To make them easier to paint
c) To maximize strength while minimizing weight
d) To make them easier to weld together
Which of these liquids has the highest viscosity?
a) Water
b) Honey
c) Milk
d) Gasoline
The spherical shape of a small rain droplet is primarily due to:
a) Gravity
b) Air pressure
c) Surface tension
d) Viscosity
Thermal Expansion When most solids are heated, they:
a) Expand
b) Contract
c) Remain the same size
d) Change color
Thermal stress occurs in a metal rod when it is heated and
a) It is allowed to expand freely
b) It is made of a special alloy
c) Its ends are rigidly fixed, preventing expansion
d) It is cooled very quickly
A bimetallic strip is made of two metals with different:
a) Colors
b) Coefficients of thermal expansion
c) Weights
d) Electrical conductivities
What is the main purpose of an expansion joint in a long steel bridge?
a) To make the bridge lighter
b) To provide a place for water to drain
c) To allow the bridge to expand and contract with temperature changes
d) To make the bridge easier to build
