MCQs of Gyroscope (Dynamics of Machinery - 3151911)

Dynamics of Machinery (3151911) MCQs

MCQs of Gyroscope

Showing 31 to 40 out of 50 Questions

31.

In an automobile, if the vehicle makes a left turn, the gyroscopic torque

(a)	increases the force on outer wheels
(b)	decreases the force on outer wheels
(c)	does not affect the forces on the outer wheels
(d)	none of the mentioned

32.

In four wheelers condition that inner wheel won’t leave the ground is_______.

(a)	$\frac{w}{4} + \frac{p}{2} + \frac{q}{2} > 0$
(b)	$\frac{p}{2} + \frac{q}{2} > \frac{w}{4}$
(c)	$\frac{p}{2} + \frac{q}{2} < \frac{w}{4}$
(d)	$\frac{p}{2} - \frac{q}{2} > \frac{w}{4}$

33.

Which of the following relation is correct regarding the net gyroscope couple C acting on a four wheel vehicle?

(a)	$ω_{w} . ω_{p} {(4 I_{w} \pm G . I_{e})}^{2}$
(b)	$ω_{w} . ω_{p} {(4 I_{w} \times G . I_{e})}^{2}$
(c)	$ω_{w} . ω_{p} (4 I_{w} \pm G . I_{e})$
(d)	$ω_{w}^{2} (4 I_{w} \pm G . I_{e})$

34.

If the net gyroscope couple is negative then which of the following is true?

(a)	The reaction will be vertically downwards on the outer wheels and vertically upwards on the inner wheels
(b)	The reaction will be vertically upwards on the outer wheels and vertically downwards on the inner wheels
(c)	The reaction will be vertically downwards on the outer wheels and vertically downwards on the inner wheels
(d)	The reaction will be vertically upwards on the outer wheels and vertically upwards on the inner wheels

35.

In order to maintain contact between the inner wheel and ground the sum of vertical reactions at each of the outer and inner wheels should be less than______.

(a)	W
(b)	W/2
(c)	W/4
(d)	W/3

36.

The overturning couple acting on the four wheeler vehicle is balanced by which of the following forces?

(a)	Centripetal force
(b)	Vertical reactions
(c)	Centrifugal force
(d)	Horizontal reactions

37.

The overturning couple is independent of the track width.

(a)	False
(b)	True

38.

Let x be the track width of the vehicle, then which of the following expression is correct for vertical reaction Q at the two outer or inner wheels?

(a)	Q = (Mv². h)/ (R.x)
(b)	Q = (Mv²)/ (R)
(c)	Q = Mv². x/ (R.h)
(d)	Q = (Mv²)/ (x)

39.

Assuming that a vehicle is taking a left turn, The gyroscopic couple acting on the vehicle has a tendency to _____ the inner wheels and ____ the outer wheels.

(a)	press, lift
(b)	lift, press
(c)	press, press
(d)	lift, lift

40.

Which of the following factor is not responsible for the stability of a 4 wheel vehicle while negotiating a turn?

(a)	Pitching
(b)	Reaction due to weight of Vehicle
(c)	Effect of gyroscopic couple due to wheel
(d)	Effect of gyroscopic couple due to engine

Showing 31 to 40 out of 50 Questions