# Bulk Modulus MCQs with Answers

## Bulk Modulus MCQs

The modulus of elasticity related to a change in the volume is bulk modulus (k).

Let volume V is subjected to an additional pressure dP, The increase in pressure will produce a decrease in its volume dV.

∴ Volume stress = Change in pressure

= dP Bulk modulus is defined as the ratio of the volume stress to the volume strain. Q.1) Modulus of elasticity associated with the change in volume is knows as…

a) Young’s modulus

b) Bulk modulus

c) Modulus of rigidity

d) None of these

Q.2) Bulk modulus is applicable for…..

a) solids

b) liquids

c) gases

d) all of above

Q.3) The bulk modulus of material of substance if its volume is changed by 2% when there is applied pressure of 5×106 Pa?

a) 2.5× 108 N/m2

b) 5× 106 N/m2

c) 5× 108 N/m2

d) 5× 108 N/m2 Q.4) The volume strain in metal sphere of Bulk modulus 1.8× 108 N/m2  when subjected to pressure of 2× 107 N/m2

a) 0.11

b) 0.22

c) 0.33

d) 0.44 Q.5) The original volume of vessel containing liquid is 50 ltr. Change in volume of the liquid when pressure of 1 atm is applied to vessel is if the bulk modulus of liquid is 1.5× 106 N/m2 …………

a) 0.375 ltr

b) 1375 ltr

c) 2.375 ltr

d) 3.375 ltr Q.6) The pressure required to change the volume of mercury by 0.1% is (K=4.5×108 N/m2)

a) 45× 105 Pa

b) 45×1010 Pa

c) 45× 1015 Pa

d) 45× 1020 Pa Q.7) If the liquid is subjected to the different pressures of 5 atm and 4 atm, the ratio of Bulk modulus of the liquid is….

a) 1:1

b) 2:1

c) 1:2

d) 5:4

Q.8) If the liquid of volume V is subjected to the different pressures of 5 atm and 4 atm, the ratio of change in volumes of liquid is….

a) 1:1

b) 2:1

c) 1:2

d) 5:4 Q.1) b) Bulk modulus

Q.2) d) all of above

Q.3) a) 2.5× 108 N/m2

Q.4) a) 0.11

Q.5) d) 3.375 ltr

Q.6) b) 45×1010 Pa

Q.7) a) 1:1

Q.8) d) 5:4

Updated: July 5, 2021 — 12:43 pm
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