Mechanical Engineering MCQs

2075 MCQs  (Page 171 of 208)

Attempt Mechanical Engineering Mcqs Quiz
Metacentric height is the distance between the metacentre and_______________?
A. Water surface
B. Center of pressure
C. Center of gravity
D. Center of buoyancy
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In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 9. Sensitivity of inclined tube to sensitivity of U-tube is equal to________________?
A. Sin 9
B. Sin 9
C. Cas 9
D. Cos 9
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The resultant of all normal pressures acts___________________?
A. At e.g. of body
B. At center of pressure
C. Vertically upwards
D. At metacentre
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Manometer is used to measure__________________?
A. Pressure in pipes, channels etc
B. Atmospheric pressure
C. Very low pressure
D. Difference of pressure between two points
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Dynamic viscosity of most of the liquids with rise in temperature__________________?
A. Increases
B. Decreases
A. Remains unaffected
D. Unpredictable
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A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?
A. Sink to bottom
B. Float over fluid
C. Partly immersed
D. Be fully immersed with top surface at fluid surface
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Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem_________________?
A. venturimeter
B. orifice plate
C. nozzle
D. pitot tube
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In an isothermal atmosphere, the pressure___________________?
A. Decreases linearly with elevation
B. Remains constant
C. Varies in the same way as the density
D. Increases exponentially with elevation
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Which of the following instrument can be used for measuring speed of an aeroplane___________________?
A. venturimeter
B. orifice plate
C. hot wire anemometer
D. rotameter
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Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?
A. Gas law
B. Boyle’s law
C. Charle’s law
D. Pascal’s law
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Word of the Day
27 Sep
Undesirable
not wanted or desirable because harmful, objectionable, or unpleasant.
غیر مطلوب، ناروا، نامناسب

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