In the engine's intake system, which device opens to relieve excessive pressure?

In the engine's intake system, which device opens to relieve excessive pressure?

• A. Thrust Bearing
• B. Main Bearing
• C. Silencer
• D. Safety Relief Valve

Answer: (D)

A safety relief valve opens to relieve excessive pressure in the intake system. It stays closed during normal operation, but when intake pressure rises above a safe limit, it vents the excess air to prevent damage to ducts, manifolds, and other components. This protection is essential for avoiding issues like compressor surge or structural stress in the intake path. The other devices don’t serve this purpose: thrust bearings and main bearings support rotating parts, not air pressure; a silencer reduces noise but doesn’t provide a mechanism to vent overpressure.

A safety relief valve opens to relieve excessive pressure in the intake system. It stays closed during normal operation, but when intake pressure rises above a safe limit, it vents the excess air to prevent damage to ducts, manifolds, and other components. This protection is essential for avoiding issues like compressor surge or structural stress in the intake path. The other devices don’t serve this purpose: thrust bearings and main bearings support rotating parts, not air pressure; a silencer reduces noise but doesn’t provide a mechanism to vent overpressure.