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Engineering
Mechanical
ME Set-3
Engineering Mechanics
77

Engineering Mechanics MCQ with Answers

77) A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to

25

50

100

250

Answer is:

50

Engineering Mechanics MCQ with Answers

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Related Engineering Mechanics MCQ with Answers

78) 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

ellipse

hyperbola

parabola

circle

Answer is:

hyperbola

79) 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

density of metal can′t be determined

metal is twice as dense as water

metal will float in water

metal is twice as dense as unknown fluid

Answer is:

density of metal can′t be determined

80) The C.G. of a solid hemisphere lies on the central radius 3r

at distance — from the plane base 3r

at distance — from the plane base 3r

at distance — from the plane base 3r

at distance — from the plane base or

Answer is:

at distance — from the plane base or

81) The C.G. of a plane lamina will not be at its geometrical centre in the case of a

right angled triangle

equilateral triangle

square

circle

Answer is:

right angled triangle

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