A. 1.5
B. 3
C. 5
D. 7
✅ The correct answer is option B.
Engineering MCQs
The main constituent of bones is
A. CaF₂
B. Ca₃(PO₄)₂
C. CaCO₃
D. CaCl₂
✅ The correct answer is option B.
Natural water contains approximately __________ percent of heavy water.
A. 0.015
B. 0.71
C. 1.2
D. 3.5
✅ The correct answer is option A.
__________ number is sometimes used in place of Grashoff number in free convection heat transfer.
A. Stanton
B. Brinkman
C. Rayleigh
D. Nusselt
✅ The correct answer is option C.
During sensible heating of humid air
A. Relative humidity increases
B. Dew point remains constant
C. Dry bulb & wet bulb temperature increases
D. Both ‘b’ & ‘c’
✅ The correct answer is option D.
Tungsten in high speed steel is responsible for its
A. Toughness & wear resistance
B. Cold hardness
C. Hot hardness
D. Sharp cutting edge
✅ The correct answer is option C.
__________ has a negative co-efficient of linear expansion.
A. Iron
B. Copper
C. Rubber
D. Nickel
✅ The correct answer is option B.
In Newton’s law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, V = velocity, Vg = velocity gradient ).
A. V²
B. 1/V²
C. 1/Vg
D. Vg
✅ The correct answer is option D.
Force between the molecules of the same substance is called __________ force.
A. Adhesive
B. Cohesive
C. Molecular
D. Vander Walls
✅ The correct answer is option B.
Pressure exerted by a liquid depends upon its
A. Surface tension
B. Density
C. Viscosity
D. Buoyancy
✅ The correct answer is option B.