Mechanical Engineering MCQs

2075 MCQs  (Page 45 of 208)

Attempt Mechanical Engineering Mcqs Quiz
In actual machines_______________?
A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity
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In ideal machines__________________?
A. Mechanical advantage is greater than velocity ratio
B. Mechanical advantage is equal to velocity ratio
C. Mechanical advantage is less than velocity ratio
D. Mechanical advantage is unity
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The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of_______________?
A. Friction
B. Limiting friction
C. Repose
D. Kinematic friction
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The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is__________________?
A. Same
B. Double
C. Half
D. Four times
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The C.G. of a plane lamina will not be at its geometrical centre in the case of a__________________?
A. Right angled triangle
B. Equilateral triangle
C. Square
D. Circle
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The C.G. of a right circular solid cone of height h lies at the following distance from the base______________?
A. H/2
B. J/3
C. H/6
D. H/4
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A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal_________________?
A. Density of metal can’t be determined
B. Metal is twice as dense as water
C. Metal will float in water
D. Metal is twice as dense as unknown fluid
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Which of the following is not the unit of energy_________________?
A. Kg m
B. Kcal
C. Wattr
D. Watt hours
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The C.G. of a solid hemisphere lies on the central radius 3r________________?
A. At distance — from the plane base 3r
B. At distance — from the plane base 3r
C. At distance — from the plane base 3r
D. At distance — from the plane base or
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Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one___________________?
A. Ellipse
B. Hyperbola
C. Parabola
D. Circle
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Word of the Day
28 Sep
Expatriate
a person who lives outside their native country.
ملک بدری، جلا وطن کرن، شہر بدر کرنا

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