- Define vernier callipers.
- What does a calliper mean.
- What are the scales in a Vernier Calliper.
- What is the least count of vernier calliper also known as?
- Define the vernier constant or least count.
- What are the various sources of errors while measuring in vernier callipers?
- When jaws are not at the right angle to the main scale.
- Parallax while noting the observations.
- Dull graduations on both scales.
- Loose fixing of the vernier scale on the main scale.
- What is the smallest distance measured along the vernier callipers known as?
- Who invented the vernier scale?
- What is the formula to find the difference between one Main Scale Division (MSD) and one Vernier Scale Division (VSD)?
- List the two sectors which use vernier callipers?
- State true or false: Each division of the Vernier scale is bigger than each main scale division.
- At which angle should an observer note the readings in vernier callipers?
- What is meant by inside callipers?
- The external size of an object is measured using which type of callipers?
- Calculate the least count when n divisions on the VSD coincide with (n-1) division on the MSD.
- Define zero error.
- What is the formula to calculate the actual reading?
- What are the types of zero error?
- What is the main function of the thumbscrew?
- List the types of vernier callipers.
- What is the main function of the vernier scale?
- What is the value of the lowest main scale division?
- The main scale is movable or stationary?
- Which is the larger scale in a vernier calliper?
- Which jaw is used to measure the internal diameter of an object?
Answer. It is a measuring device mainly used for measuring linear dimensions. Vernier callipers are used for measuring the diameters of round objects.
Answer. Calliper is a device used to measure the dimensions of an object.
Answer. Scales on a Vernier callipers are The main scale and a Vernier scale.
Answer. The least count of vernier calliper is also known as the vernier constant.
Answer. It is the difference between the value of one main scale division (MSD) and one vernier scale division (VSD).
Answer. Sources of error are
Answer. It is known as the least count.
Answer. The Vernier scale was invented by Pierre Vernier, the French mathematician.
Answer. It is given by the formula: n(VSD)=(n-1)MSD.
If 1 MSD = 1 mm and 1 VSD = 0.9 mm. What is the value of least count?
Answer. Least count = (MSD – VSD) = 1-0.9mm = 0.1mm
Answer. The vernier callipers are used in the aerospace field and the steel manufacturing sector.
Answer. FALSE. Each division of the Vernier scale is smaller than every division of the main scale.
Answer. Observations should be taken at right angles (90 degrees).
Answer. Inside callipers are the device used to measure the internal size of an object.
Answer: The external size of an object is measured using the outside calliper.
Answer. It is given by the formula: LC =
Answer. It is defined as the condition where the measuring device registers a reading when there should not be any reading.
Answer. The actual reading is given by the formula:
Actual reading = Main scale + Vernier scale – (Zero error)
Answer. Types of zero error are Positive zero error and Negative zero error.
Answer. The thumbscrew is used to provide a grip to the users so that sliding of the jaws becomes effortless. Thumbscrew is found at the bottom of the vernier scale.
Answer. Types of vernier callipers are manual readout, digital readout, and dial readout.
Answer. It is mainly used to offer accuracy to the main scale reading by dividing the reading into smaller increments.
Answer. The value of the lowest main scale division is 1 mm.
Answer. The main scale is stationary.
Answer. The main scale is the larger scale in the vernier calliper.
Answer. Inside small jaws are used for measuring the internal diameter of an object.
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