In a ventilated disc brake

A A duct directs air towards the caliper for cooling while the vehicle is moving
B Caliper is covered with cooling fins
C Disc contains many small holes for optimum cooling performance
D Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

Correct Answer: Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

The "ventilated" disc design helps to dissipate the generated heat and is commonly used on the more-heavily loaded front discs.
Bissoy MCQ
#Mechanical Engineering #Automobile Engineering

Related Questions

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A Remain horizontal
B Slant up towards direction of pull
C Slant down towards direction of pull
D None of the above
A disc is a spinning with an angular velocity $$\omega $$ rad/s about the axis of spin. The couple applied to the disc causing precession will be (where $$I$$ = Mass moment of inertia of the disc and $$\omega {\text{P}}$$  = Angular velocity of precession of the axis of spin)
A $$\frac{1}{2}I{\omega ^2}$$
B $$I{\omega ^2}$$
C $$\frac{1}{2}I\omega \omega {\text{P}}$$
D $$I\omega \omega {\text{P}}$$
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is
A $$\frac{{{\text{m}}{{\text{r}}^2}}}{2}$$
B $$\frac{{{\text{m}}{{\text{r}}^2}}}{4}$$
C $$\frac{{{\text{m}}{{\text{r}}^2}}}{6}$$
D $$\frac{{{\text{m}}{{\text{r}}^2}}}{8}$$
A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
A n rpm
B $$\frac{{\text{n}}}{2}$$ rpm
C $$\frac{{\text{n}}}{4}$$ rpm
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Which of the following symptom is caused as a result of brake disc run out?
A Ineffectiveness of the brakes
B Judder during braking
C Localized wearing of the brake pads
D Rapid wearing of the brake pads
The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is
A Brake pedal, Master cylinder, Brake lines, Vacuum servo mechanism, Brake pads
B Brake pedal, Vacuum servo mechanism, Master cylinder, Brake lines, Brake pads
C Brake pedal, Master cylinder, Vacuum servo mechanism, Brake lines, Brake pads
D Brake pedal, Brake lines, Vacuum servo mechanism, Master cylinder, Brake pads
In recent times, the “dynamic brake system” is becoming popular in modern railways. The dynamic brake system coverts Kinetic energy to________:
A Potential energy
B Electricity
C Sound energy
D Magnetic energy
What is the standard storage capacity of a CD-ROM disc?
A 4.7 GB
B 9.4 GB
C 700 MB
D 900 MB
Disc storage is a special type of
A processor
B I/O device
C memory
D micro-computer
Cell junctions make up an intercalated disc of cardiac muscle are
A Fascia adherens
B Desmosomes
C Gap junction
D Occluding junction
E Hemidesmosomes

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