When pressure is measured with reference to atmospheric pressure, but it is below atmospheric pressure, it is known as

Related MCQs

• When pressure is measured with reference to atmospheric pressure, it is known as
• When pressure is measured with reference to absolute zero pressure it is known as
• When the free surface of a stream is in contact with the atmosphere and the flow is flowing due to gravitational force and atmospheric pressure, it is called
• When the free surface of a stream is in contact with the atmosphere and the flow is flowing due to gravitational force and atmospheric pressure, it is called pipe.
• A simple manometer containing mercury is used to measure pressure of oil (sp. gr. 0.8) flowing in a pipe as shown below. Mercury level in open tube is 150 mm higher than that on left limb. If height of oil in left limb is 90 mm, determine the pressure in terms of head of water in a pipe.
• The centre of pressure lies below the centre of gravity of the immersed surface.
• A rectangular plate of 2 m x 3 m height is immersed in water vertically with top edge parallel to and at depth of 3 m below free surface. Calculate total water pressure.
• An inverted triangular plate is having base parallel to water surface with width 1.6 m and height 2.10 m. It is submerged in water in such a way that its base is 1.0 m below free surface. Find total pressure.
• A circular plate 2.5 m diameter is immersed in water with its greatest and lowest depth below the free surface being 3.0m and 1.0m respectively. Find the position of centre of pressure
• The air surrounding the earth Possess some weight. Due to its weight, the air exerts some pressure on the surface of the earth. This pressure is known as