Mechanical Engineering MCQs

2075 MCQs  (Page 173 of 208)

Attempt Mechanical Engineering Mcqs Quiz
The angle of contact in case of a liquid depends upon___________________?
A. The nature of the liquid and the solid
B. The material which exists above the free surface of the liquid
C. Both of die above
D. Any one of the above
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The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as_________________?
A. Meta center
B. Center of pressure
C. Center of buoyancy
D. Center of gravity
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A liquid would wet the solid, if adhesion forces as compared to cohesion forces are________________?
A. Less
B. More
C. Equal
D. Less at low temperature and more at high temperature
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A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?
A. Increase
B. Decrease
C. Remain same
D. Increase/decrease depending on depth of immersion
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If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its__________________?
A. Specific weight
B. Specific mass
C. Specific gravity
D. Specific density
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A pressure of 25 m of head of water is equal to_________________?
A. 25 kn/m2
B. 245 kn/m2
C. 2500 kn/m2
D. 2.5kn/m2
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A one dimensional flow is one which_________________?
A. Is uniform flow
B. Is steady uniform flow
C. Takes place in straight lines
D. Involves zero transverse component of flow
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Kinematic viscosity is equal to_________________?
A. Dynamic viscosity/density
B. Dynamicviscosity x density
C. Density/dynamic viscosity
D. 1/dynamicviscosity x density
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The units of kinematic viscosity are____________________?
A. Metres2 per sec
B. Kg sec/metre
C. Newton-sec per metre
D. Newton-sec per metre
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If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?
A. H
B. Wh
C. W/h
D. H/w
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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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