VEDA (ITI) - 02.06.2025

Which system of distribution is most suitable when the source is on a mountain and the city lies in a plain?

• Gravity system
• Pumping system
• Combined system
• All of these

Answer explanation

Gravity system utilizes elevation difference to supply water without mechanical energy.

Grid iron system is best suited for:

• Irregularly grown towns
• Undulating terrain
• Radial roads
• Planned city on gentle slope

Answer explanation

Grid system works well with well-planned roads in cities with gentle slope.

Which of the following is not an advantage of the dead end system?

• Economical
• Simple design
• No stagnation of water
• Easy expansion

Answer explanation

Dead end systems suffer from stagnation due to lack of continuous flow.

Assertion (A): Grid iron system allows large quantity of water withdrawal during fire accidents. Reason (R): Grid iron system has multiple interconnected mains.

• Both A and R are true, and R is the correct explanation of A
• Both A and R are true, but R is not the correct explanation of A
• A is true but R is false
• A is false but R is true

Answer explanation

Multiple interconnected paths allow high discharge during emergencies.

Match the following: A. Dead end system B. Grid Iron system C. Ring system D. Radial system 1. Equal pressure & multi flow 2. Economy & simplicity 3. Zonal distribution 4. Economy & balanced pressure

• A-2, B-1, C-4, D-3
• A-3, B-2, C-4, D-1
• A-2, B-1, C-3, D-4
• A-2, B-4, C-1, D-3

Answer explanation

Dead end: Simple; Grid iron: Equal flow; Ring: Balanced pressure; Radial: Zonal flow.

Relief valves are used to:

• Control water quality
• Reduce pressure automatically
• Clean pipe silt
• Stop flow to households

Answer explanation

They open at high pressure and prevent pipe bursting.

Which device helps in water flow measurement at household level?

• Ferrule
• Water meter
• Scour valve
• Relief valve

Answer explanation

Water meter records household water usage.

Assertion (A): Goose neck is made of flexible material. Reason (R): It connects rigid pipe to allow movement without leakage.

• Both A and R are true, and R is the correct explanation of A
• Both A and R are true, but R is not the correct explanation of A
• A is true but R is false
• A is false but R is true

Answer explanation

Flexibility is needed to absorb ground settlement or vibrations.

Statement 1: Radial system ensures high pressure. Statement 2: It is used in cities with circular road patterns.

• Both statements are true
• Only Statement 1 is true
• Only Statement 2 is true
• Both statements are false

Answer explanation

Radial systems ensure high pressure, but they suit radial roads, not circular ones.

Sluice valves are used to:

• Control flow and isolate sections
• Measure pressure
• Measure flow rate
• Remove air pockets

Answer explanation

Sluice valves isolate pipe sections for maintenance.