Pressure in liquids - Jamb Physics Past Questions and Answers

Question 6:

• JAMB 1979

The density 400cm³ of palm oil was 0.9gcm^-3 before frying. If the density of the oil was 0.6gm^-3 after frying,assuming no loss of oil due to spilling, its new volume was

A. 360cm³
B. 600cm³
C. 240cm³
D. 800cm³
E. 450cm³

Question 7:

• JAMB 1979

An air bubble rises from the bottom to the top of a water dam which is 40m deep. The volume of the bubble just below the surface is 2.5cm³. Find its volume at the bottom of the dam, if atmospheric pressure is equivalent to 10m water

A. 0.0cm³
B. 2.0cm³
C. 1.6cm³
D. 0.625cm³
E. 0.5cm³

Question 8:

• JAMB 1980

The relative densities of zinc, brass, copper, gold and silver are respectively 7.1, 8.5, 8.9, 19.3, 10.5. A metal ornament which weighs 0.425kg and can displace 50 x 10^-6m³m of water is made of

A. Zinc
B. Brass
C. Copper
D. Gold
E. Silver

Question 9:

• JAMB 1981

The principle of transmissibility of pressure in a fluid at rest in all directions is known as

A. Archimede's principle
B. Flotation Principle
C. Newton's lwa
D. Pascal's law
E. Boyle's law

Question 10:

• JAMB 1983

Which of the following statements is true about liquid pressure is NOT correct? The pressure

A. At a point in a liquid is proportional to the depth
B. At any point in a liquid is the same at the same level
C. Is exerted equally in all directions at any point
D. Of a liquid at any point on the wall of its container acts in a direction perpendicular to the wall
E. At a particular depth depends on the shape of the vessel