In the context of Indian Railway brake systems, what distinguishes an 'air brake' from a 'vacuum brake'?
AAir brakes use compressed air pressure while vacuum brakes use pressure difference to apply brakes
BVacuum brakes are faster than air brakes
CAir brakes are only used on freight trains
DVacuum brakes do not require any mechanical linkage
Correct Answer:
A. Air brakes use compressed air pressure while vacuum brakes use pressure difference to apply brakes
EXPLANATION
Air brakes operate using compressed air to push brake pistons, while vacuum brakes use the pressure difference created by partial vacuum to apply braking force. Modern Indian Railways predominantly use air brake systems.
In the latest 2024-2025 Indian Railways safety statistics, which zone has shown maximum improvement in accident prevention?
ANorthern Railway Zone
BCentral Railway Zone
CData-driven zones with modern signaling systems
DSouth Eastern Railway Zone
Correct Answer:
C. Data-driven zones with modern signaling systems
EXPLANATION
Zones with modern automatic block signaling, level crossing gates, and CCTV monitoring systems have demonstrated maximum improvement in accident prevention in recent statistics.
DBrake cylinder → Reservoir → Compressor → Control valve
Correct Answer:
A. Compressor → Reservoir → Control valve → Brake cylinder
EXPLANATION
The correct sequence is: Air compressor generates compressed air → stored in reservoir → regulated through control valve → transmitted to brake cylinders on wheels.