Pressure - Jamb Physics Past Questions and Answers

Question 36:

• JAMB 1994

Which of these statements are TRUE of pressure in liquids? i. pressure acts equally in all direction. ii. pressure decreases with depth. iii. pressure at the same level of a liquid is the same. iv pressure is dependent on the cross-sectional area of the barometer tube

A. I, iii only
B. I, ii, iii only
C. I, iii, and iv only
D. I, ii, iii and iv

Question 37:

• JAMB 1994

In the fig above if the atmospheric pressure is 760mm, the pressure of the chamber G is

A. 660mm
B. 690mm
C. 830mm
D. 860mm

Question 38:

• JAMB 1995

A hydraulic press has a large circular piston of radius 0.8m and a circular plunger of radius 0.2m. A force of 500N is exerted by the plunger. Find the force exerted on the piston

A. 8000N
B. 4000N
C. 2000N
D. 31N

Question 39:

• JAMB 1997

A liquid of mass 1.0 x 10³kg fills a rectangular tank of length 2.5m and width 2.0m. If the tank is 4m high, what is the pressure at the middle of the tank?[g = 10ms^-2]

A. 1.0 x 10⁴Nm^-2
B. 2.0 x 10³Nm^-2
C. 1.5 x 10³Nm^-2
D. 1.0 x 10³Nm^-2

Question 40:

• JAMB 1998

Which of these statements are correct for the pressures in liquids? i. pressure in a liquid at a point acts equally in all directions. ii. pressure increases with depth. iii. pressure at a depth depends on the shape of the container. iv. pressure at the same depth in different liquids are proportional to the density at different liquids.

A. I, ii, iii only
B. I, ii, iv only
C. I, iii, iv only
D. Ii, iii, iv only