Explanation: Isolation valves are shut to negate the contribution from a portion of the propulsion system that it controls. Drainage valves help in draining propellants, while control valves help in controlling the amount of flow passing through the adjacent to the valve.

Explanation: Isolation and latch valves are commonly used for pressurized feed systems. For opening and shutting them down, they require power, but when latched on to some position they don’t require any power.

Explanation: Burst diaphragm is a very simple and light valve. It is a circular disc like material which is designed so as to burst when it faces more than a particular pressure differential.

Explanation: Burst diaphragm is used in the German missile Wasserfall. It actually used 4 of such burst disks.

Explanation: Main liquid oxygen valves are under high pressure. Since liquid oxygen easily evaporates under normal atmospheric conditions, they are kept in cryogenic tanks. These valves also make use of reusable ball valves.

Explanation: Pressure regulator, as the name mentions, helps in regulating or controlling gas pressure. Other valves serve different purposes, like maintaining the flow until a pressure differential (burst diaphragm) or for isolation of a particular flow region.

Explanation: Pipelines are used in conveying fluids in a rocket engine. The complexity of the pipeline network in rocket engines will increase with its size and capabilities.

Explanation: Pipes and lines in a rocket engine should allow thermal expansion and it should minimize vibrational effects. Irregular fluid flow due to inadequate pipe design may lead to performance issues in the rocket engine.

Explanation: Analysis of a particular hammer phenomenon in the pipelines will aid in determining the maximum pressure. This maximum pressure can reduce because of frictional losses and due to branching in the pipe.

Explanation: Maximum pressure can be determined using the water hammer phenomenon. It is usually caused by the sudden closing of valves.