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Mechanical Engineering Mcqs 1919 MCQs [All-Courses]

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Mechanical Engineering MCQs prepared for job test and interview preparation, especially for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover key topics such as Machine Design, Theory of Machines, Hydraulic Machines, and other important mechanical engineering concepts.

All Topics  1919

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
Correct Answer: specific gravity
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
Correct Answer: 245 kN/m2
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
Correct Answer: involves zero transverse component of flow
Kinematic viscosity is equal to_________________?
A dynamic viscosity/density
B dynamicviscosity x density
C density/dynamic viscosity
D 1/dynamicviscosity x density
Correct Answer: dynamic viscosity/density
The units of kinematic viscosity are____________________?
A metres2 per sec
B kg sec/metre
C newton-sec per metre
D newton-sec per metre
Correct Answer: metres2 per sec
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
Correct Answer: h
Increase in pressure at the outer edge of a drum of radius R due to rotation at corad/sec, full of liquid of density p will be___________________?
A pco2/?2
B pco2/?2/2
C 2pa2R2
D pa2R/2
Correct Answer: pco2/?2
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water________________?
A 51 cm
B 50 cm
C 52 cm
D 52.2 cm
Correct Answer: 51 cm
Dimensions of surface tension are___________________?
A MlL°T2
B MlL°Tx
C MlL r2
D MlL2T2
Correct Answer: MlL°T2
Which of the following meters is not associated with viscosity____________________?
A Red wood
B Say bolt
C Engler
D Orsat
Correct Answer: Orsat
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