Pressure in Liquids Multiple Choice Questions with Answers – PDF Download

MCQ 1: A rectangular block with base area A of 30 cm² and height h of 0.06 m is submerged in water of density 1000 kg m^-3. What is the pressure due to the water acting on the top surface of the block?

1. 5 × 10² Pa
2. 3 × 10² Pa
3. 6 × 10² Pa
4. 10 × 10² Pa

MCQ 2: A rectangular block with base area A of 30 cm² and height h of 0.06 m is submerged in water of density 1000 kg m^-3. What is the force exerted by the water acting on the top of the block?

1. 0.18 N
2. 1.8 N
3. 18 N
4. 180 N

MCQ 3: The mechanic is able to apply a smart effort to lift one side of the car for changing tyres with the help of:

1. hydraulic car jack
2. screw gauge
3. Vernier calipers
4. cylinder

MCQ 4: A 15 N force exerted on a small piston of area 0.025 m². The large piston has the area of 0.05 m². What is the pressure exerted on the liquid by the small piston?

1. 300 Pa
2. 600 Pa
3. 900 Pa
4. 120 Pa

MCQ 5: If a column of liquid of height is h, base area is A and density is p, then the volume V is given by:

1. V = Ah
2. V = A/h
3. V = h/A
4. V = A + h