D49 CHECK YOUR LEVEL

What is the main purpose of using expansion joints in steel structures?

• To reduce construction cost
• To accommodate thermal expansion
• To join different steel sections
• To provide aesthetic joints

Answer explanation

Expansion joints allow movement due to thermal changes in steel structures.

Which type of estimate is prepared during the initial stages of a project?

• Detailed estimate
• Supplementary estimate
• Revised estimate
• Preliminary estimate

Answer explanation

Preliminary estimates are made during the initial planning stages.

Which instrument is primarily used in levelling surveys?

• Dumpy level
• Theodolite
• Tacheometer
• Compass

Answer explanation

Dumpy levels are commonly used in levelling surveys.

Which type of footing is provided for multi-column structures?

• Combined footing
• Raft footing
• Isolated footing
• Strip footing

Answer explanation

Raft footings support multiple columns and distribute load evenly.

Which method of irrigation involves applying water directly to the root zone?

• Border irrigation
• Sprinkler irrigation
• Drip irrigation
• Surface irrigation

Answer explanation

Drip irrigation delivers water directly to the plant root zone.

What is the unit of kinematic viscosity?

• m/s
• m²/s²
• m²/s
• m/s²

Answer explanation

Kinematic viscosity is measured in m²/s.

Which material is commonly used as a sub-base in highway construction?

• Granular sub-base (GSB)
• Bituminous macadam
• Wet mix macadam
• Dense bituminous macadam

Answer explanation

Granular sub-base provides a solid foundation layer in highways.

What is the primary function of the plinth beam in a structure?

• Distribute load to foundation
• Prevent termite entry
• Provide structural stability
• Prevent water seepage

Answer explanation

Plinth beams distribute structural loads to the foundation safely.

Which estimate considers detailed quantities of all items of work?

• Supplementary estimate
• Revised estimate
• Detailed estimate
• Plinth area estimate

Answer explanation

Detailed estimates include quantities and costs for all items.

What is the purpose of a differential leveling survey?

• Determine difference in elevation
• Establish horizontal line
• Measure distance
• Mark boundary

Answer explanation

Differential leveling measures elevation differences between points.