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The SI system consists of seven fundamental units, including one angular unit.
The SI system consists of seven fundamental units, including one angular unit.
False
An angstrom (Å) is equivalent to $10^{-9}$ cm.
An angstrom (Å) is equivalent to $10^{-9}$ cm.
False
Fermi (f) is a unit of length equivalent to $10^{-12}$ m.
Fermi (f) is a unit of length equivalent to $10^{-12}$ m.
False
Positive zero error in Vernier callipers is added to the observed reading for correction.
Positive zero error in Vernier callipers is added to the observed reading for correction.
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The principle of a screw gauge involves the main parts known as the barrel and thimble.
The principle of a screw gauge involves the main parts known as the barrel and thimble.
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Vernier callipers are also referred to as digital calipers due to their advanced technology.
Vernier callipers are also referred to as digital calipers due to their advanced technology.
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The pitch of a screw gauge is the linear distance moved by its screw on the circular scale when the main scale completes one full rotation.
The pitch of a screw gauge is the linear distance moved by its screw on the circular scale when the main scale completes one full rotation.
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The least count of a screw gauge is calculated by dividing the pitch of the screw by the total number of divisions on the main scale.
The least count of a screw gauge is calculated by dividing the pitch of the screw by the total number of divisions on the main scale.
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Positive zero error in a screw gauge occurs when the zero mark of the circular scale is above the base line of the main scale.
Positive zero error in a screw gauge occurs when the zero mark of the circular scale is above the base line of the main scale.
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Negative zero error in a screw gauge happens when the zero mark of the circular scale is below the base line of the main scale.
Negative zero error in a screw gauge happens when the zero mark of the circular scale is below the base line of the main scale.
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The correction due to zero error is calculated by adding the observed reading and the zero error.
The correction due to zero error is calculated by adding the observed reading and the zero error.
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Backlash error in a screw gauge is caused by the immediate movement of the screw tip in the opposite direction upon reversing the rotation of the thimble.
Backlash error in a screw gauge is caused by the immediate movement of the screw tip in the opposite direction upon reversing the rotation of the thimble.
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