The density of human blood is roughly equal to that of which substance?
Correct answer C. Water
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Everyday Science MCQs
Page 154 of Everyday Science multiple-choice questions with answers. Tap an option to check yourself.
Page 154 of 198
For which type of flow is Bernoulli’s equation valid?
Correct answer A. Laminar flow
What is the shape of an aeroplane wing that produces lift called?
Correct answer C. Aerofoil profile
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At systolic pressure, what type of flow does blood have?
Correct answer B. Turbulent
The carburettor of a car is an application of what?
Correct answer C. Both A and B
How does a sphygmomanometer measure blood pressure?
Correct answer A. Dynamically
At what speeds does laminar flow usually occur?
Correct answer D. Low
Which equation is the Venturi relation?
Correct answer D. P₁ − P₂ = ½ρv₂²
Which properties does an ideal fluid have?
Correct answer D. All of these properties
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What name is given to the drop in pressure that occurs when fluid speed increases in a horizontal pipe?
Correct answer D. Venturi effect
Under what conditions does a chimney draw smoke best?
Correct answer D. Moving fast
What is the instrument used to measure blood pressure called?
Correct answer D. Sphygmomanometer
What is systolic pressure also known as?
Correct answer B. High blood pressure
What is one torr equal to?
Correct answer B. 133.3 N m⁻²
Stokes’ law applies to a body of what shape?
Correct answer A. Spherical
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In cricket, when a bowler gets reverse swing, which way does the ball move?
Correct answer C. Towards the shiny side of the ball
What is a Venturi meter used to measure?
Correct answer C. Fluid speed
Bernoulli’s equation is derived from the law of conservation of what?
Correct answer D. Energy
Two fog droplets have radii in the ratio 2:3. What is the ratio of their terminal velocities?
Correct answer A. 4:9
In which body position is the maximum blood pressure at its lowest?
Correct answer D. Lying horizontally