Dynamics of Machinery (3151911) MCQs

MCQs of Gyroscope

Showing 11 to 20 out of 50 Questions
11.

Which Newton's law of motion corresponds to the gyroscope?

(a)

The first and second law

(b)

The first and third law

(c)

The second and third law

(d)

The first, second and third law

Answer:

Option (a)

12.

Which flight instrument use the gyroscopic principle of operation?

(a)

Airspeed Indicator, Attitude Indicator, Heading Indicator

(b)

Attitude Indicator, Heading Indicator, Turn Coordinator

(c)

Vertical Speed Indicator, Attitude Indicator, Airspeed Indicator

(d)

Altimeter, Vertical Speed Indicator, Turn Coordinator

Answer:

Option (b)

13.

Axis of rotation of wheel in gyroscope is called ____________.

(a)

spin axis

(b)

vertical axis

(c)

horizontal axis

(d)

angular axis

Answer:

Option (a)

14.

Gymbels are used for _____________.

(a)

improving rotational speed

(b)

supporting gyro wheel

(c)

as damping agent

(d)

none of the mentioned

Answer:

Option (b)

15.

Turning of the rotor about a third axis when a torque transverse to spin axis is known as ____________.

(a)

transverse shear

(b)

transverse stress

(c)

precession

(d)

face shear

Answer:

Option (c)

16.

The degree of freedom for gyroscope rotor is

(a)

1

(b)

2

(c)

3

(d)

5

Answer:

Option (c)

17.

The axis of spin, the axis of precession, and the axis of applied gyroscopic couple are obtained in

(a)

one plane

(b)

two plane perpendicular to each other

(c)

three plane perpendicular to one another

(d)

none of the mentioned

Answer:

Option (c)

18.

Which of the following statements is/are false for active gyroscopic couple?

(a)

The reactive gyroscopic couple and active gyroscopic couple are opposite in direction

(b)

In active gyroscopic couple spin vector and precession vector are parallel to each other

(c)

In right hand rule, curled fingers denote direction of precession

(d)

All the statements are false

Answer:

Option (b)

19.

A disc is spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be

(a)

12Iω2

(b)

Iω2

(c)

12Iωωp

(d)

Iωωp

Answer:

Option (d)

20.

The maximum couple during pitching is given by : (ω: angular velocity of rotor & ωpmax: maximum angular velocity of precession).

(a)

Cmax=I.ωpmax2

(b)

Cmax=I.ω2

(c)

Cmax=I.ω.ωpmax

(d)

Cmax=I2.ω.ωpmax

Answer:

Option (c)

Showing 11 to 20 out of 50 Questions