Theory of machines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Theory of machines, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Theory of machines MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Theory of machines mcq questions that explore various aspects of Theory of machines problems. Each MCQ is crafted to challenge your understanding of Theory of machines principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Theory of machines MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Theory of machines. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Theory of machines MCQs | Page 45 of 48

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Q441.
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

a.

2π. √(g/δ)

b.

1/2π. √(g/δ)

c.

2π. √(δ/g)

d.

1/2π. √(δ/g)

Discuss
Answer: (b).1/2π. √(g/δ)
Q442.
The brake commonly used in motor cars is internal expanding brake.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (a).True
Q443.
In order to give a complete secondary balance of a multi-cylinder in-line engine,

a.

the algebraic sum of the secondary forces must be equal to zero

b.

the algebraic sum of the couples about any point in the plane of the secondary forces must be equal to zero

c.

both (a) and (b)

d.

none of these

Discuss
Answer: (c).both (a) and (b)
Q444.
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to

a.

vector sum of radial component and coriolis component

b.

vector sum of tangential component and coriolis component

c.

vector sum of radial component and tangential component

d.

vector difference of radial component and tangential component

Discuss
Answer: (c).vector sum of radial component and tangential component
Q445.
A spring controlled governor is said to be stable if the controlling force line when produced intersects the Y-axis

a.

at the origin

b.

below the origin

c.

above the origin

d.

any one of these

Discuss
Answer: (b).below the origin
Q446.
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

a.

remains constant

b.

decreases

c.

increases

d.

None of these

Discuss
Answer: (b).decreases
Q447.
The equation of motion for a vibrating system with viscous damping is , if the roots of the equation are __________ then the system will be under damped.

a.

equal

b.

real

c.

complex conjugate

d.

None of these

Discuss
Answer: (c).complex conjugate
Q448.
The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be

a.

to dip the nose and tail

b.

to raise the nose and tail

c.

to raise the nose and dip the tail

d.

to dip the nose and raise the tail

Discuss
Answer: (c).to raise the nose and dip the tail
Q449.
A mechanism is an assemblage of

a.

two links

b.

three links

c.

four or more than four links

d.

all of these

Discuss
Answer: (c).four or more than four links
Q450.
In a simple harmonic motion, the velocity vector with respect to displacement vector

a.

is in phase

b.

leads by 90°

c.

leads by 180°

d.

lags by 90°

Discuss
Answer: (d).lags by 90°
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