D46 QUIZ OF THE DAY

Which instrument is used to measure area of irregular figures?

• EDM
• Planimeter
• Clinometer
• Theodolite

Answer explanation

Planimeter measures area of irregular shapes using mechanical integration.

Which arm of the planimeter is fixed in length?

• Tracing arm
• Anchor arm
• Zero arm
• Pivot arm

Answer explanation

Anchor arm is fixed in length and holds the anchor point.

Which rule assumes the area between ordinates to be parabolic?

• Average Ordinate Rule
• Trapezoidal Rule
• Simpson's Rule
• Mid Ordinate Rule

Answer explanation

Simpson's Rule assumes a parabolic boundary between ordinates.

Which instrument is used for measuring vertical angles in the field?

• Compass
• Theodolite
• Planimeter
• Tacheometer

Answer explanation

Theodolite measures both horizontal and vertical angles.

What is the least count of a box sextant?

• 10 minutes
• 1 degree
• 1 minute
• 30 seconds

Answer explanation

Box sextant typically has a least count of 1 minute.

Which equipment uses both theodolite and EDM integrated together?

• Tacheometer
• Planimeter
• Total Station
• Abney level

Answer explanation

Total Station combines theodolite and EDM in one instrument.

Which wave is typically used in modern EDM instruments?

• IR

• UV rays
• Gamma rays
• Radio waves

What is the purpose of zero circle in a planimeter?

• Maximize measurement
• Indicates where wheel does not rotate
• Marks zero point on map
• Shows vertical angle

Answer explanation

The zero circle is the path where the measuring wheel does not rotate.

Which method is suitable for calculating area by dividing into triangles?

• Offset method
• Trapezoidal rule
• Triangulation method
• Simpson's rule

Answer explanation

In triangulation method, area is divided into triangles and calculated.

Which of the following is used to measure slope without electronic means?

• Total Station
• EDM
• Clinometer
• GPS

Answer explanation

Clinometer is a manual device used for slope measurement.