MCQs of Gyroscope (Dynamics of Machinery - 3151911)

Dynamics of Machinery (3151911) MCQs

MCQs of Gyroscope

Showing 21 to 30 out of 50 Questions

21.

What is the effect of the reactive gyroscopic couple when aeroplane takes right turn and the propeller rotates in a clockwise direction?

(a)	The tail of the aeroplane is dipped and the nose is raised
(b)	The tail of the aeroplane is raised and the nose is dipped
(c)	The reactive gyroscopic couple has no effect when a propeller rotates in a clockwise direction
(d)	None of the mentioned

22.

What is the effect of the reactive gyroscopic couple when an aeroplane takes a right turn and propeller rotates in anticlockwise direction?

(a)	The nose and tail of the aeroplane are in horizontal plane
(b)	The nose of the aeroplane is raised and the tail is dipped
(c)	The nose of the aeroplane is dipped and the tail is raised
(d)	None of the mentioned

23.

The engine of an aeroplane rotates in a clockwise direction when seen from the tail end and the aeroplane takes a turn to the right. The effect of gyroscopic couple on the aeroplane will be to dip the nose and raise the tail.

(a)	True
(b)	False

24.

Gyroscopic effect is not observed in which of the following actions performed by the ships?

(a)	Rolling
(b)	Pitching
(c)	Steering
(d)	All of the mentioned

25.

The rotor of a ship rotates in a clockwise direction when viewed from the stern and the ship takes a right turn. The effect of the gyroscopic couple acting on it will be to raise the stern and lower the bow.

(a)	True
(b)	False

26.

The pitching of the ship is assumed to take place with which of the following motion?

(a)	Constant acceleration
(b)	Simple harmonic motion
(c)	Cycloidal
(d)	Uniform velocity

27.

Pitching is the movement of a ship up and down in a vertical plane about the transverse axis.

(a)	True
(b)	False

28.

What is meant by the pitching of ship?

(a)	Up and down motion of bow and stern along the transverse axis
(b)	Up and down motion of bow and stern along the longitudinal axis
(c)	Up and down motion of port and starboard along the transverse axis
(d)	None of the mentioned

29.

When the ship's bow lowered, the effect of a gyroscopic couple is ________.

(a)	move towards the starboard side
(b)	no effect
(c)	move towards the port side
(d)	stern will be lifted

30.

Which of the following represents the maximum angular acceleration?

(a)	$α_{m a x} = ϕ {(ω_{1})}^{2}$
(b)	$α_{m a x} = ϕ^{2} . {(ω_{1})}^{2}$
(c)	$α_{m a x} = {(ω_{1})}^{2} / ϕ$
(d)	$α_{m a x} = {(ω_{1})}^{2} / ϕ^{2}$

Showing 21 to 30 out of 50 Questions