Pressure - Jamb Physics Past Questions and Answers

Question 51:

• JAMB 2004

As the pressure of a fluid increases, its viscosity

A. Decreases
B. Increases
C. Increases then decreases
D. Remains constant

Question 52:

• JAMB 2004

A man exerts a pressure of 2.8 x 10³Nm^-2 on the ground and has 4 x 10^-2m² of his feet in contact with the ground. The weight of the man is

A. 102N
B. 70N
C. 140N
D. 112N

Question 53:

• JAMB 2006

In the diagram above, the pressure of the gas is

A. 86 cm of mercury
B. 66 cm of mercury
C. 96 cm of mercury
D. 76 cm mercury

Question 54:

• JAMB 2007

A reservoir 500 m deep is filled with a fluid of density 850 kgm^-3. If the atmospheric pressure is 1.05 x 10⁵ Nm^-2, the pressure at the bottom of the reservoir is.
[g = 10ms^-2]

A. 4.72 x 10⁶ Nm^-2
B. 4.36 x 10⁶ Nm^-2
C. 4.28 x 10⁶ Nm^-2
D. 4.25 x 10⁶ Nm^-2

Question 55:

• JAMB 2007

I. Increase the melting point of the liquid.
II. Increase the boiling point of the liquid.
III. Decrease the melting point of the liquid.
IV. Decrease the boiling point of the liquid.
which of the statement above about the effect on increase in pressure in a liquid are correct?

A. I and II only
B. I and III only
C. II and III only
D. III and IV only