Pressure - Jamb Physics Past Questions and Answers

Question 61:

• JAMB 2012

At a fixed point below a liquid surface, the pressure downwards is P1 and pressure upwards is P2. It can be deduced that

A. P₁ > P₂
B. P₁ ≥ P₂
C. P₁ < P₂
D. P₁ = P₂

Question 62:

• JAMB 2012

The height at which the atmosphere ceases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is

A. 380mmHg
B. 570mmHg
C. 190mmHg
D. 480mmHg

Question 63:

• JAMB 2013

At what depth below the sea-level would one experience a change of pressure equal to one atmosphere? Density of sea water = 1013kg^-3, one atmosphere = 0.01 x 10⁵Nm^-2, g = 10ms^-2

A. 0.1m
B. 1.0m
C. 10.0m
D. 100.0m

Question 64:

• JAMB 2015

At 35°C and 5 atmospheres pressure the density of a gas is 0. 600g per liter. What is the density at 7 atmospheric pressure and 350°C.

A. 0.27g / liters
B. 0.25g / liters
C. 1.7g / liters
D. 0.15g / liters

Question 65:

• JAMB 2016

A manometer is an instrument used for measuring

A. Relative density of liquid
B. Pressure in liquids and gases
C. Humidity
D. Atmospheric pressure