In a Screw Gauge the hallow cylindrical tube is graduated in millimeter called
Head scale
Pitch scale
Safety device
U shaped frame
Screw Gauge is used to measure the dimensions of very small objects upto
1 cm
0.1 cm
0.01 cm
0.001 cm
Screw gauge works under the principle of
The screw
The vernier caliper
Newton's law
Pascal's law
If the zero of the head scale in a screw gauge lies below the pitch scale axis, the zero error is
Positive
Negative
Zero
Can not be predicted
The diameter of a thin wire can be calculated by using which one of the following expressions?
P.S.R + (H.S.C x LC) + Z.C
P.S.R + ( H.S.C x LC ) - Z.C
P.S.R + ( H.S.C x LC ) χ Z.C
P.S.R + ( H.S.C x L.C) ± Z.C
Light year and Astronomical distance are used to measure
Long distances
Short distances
Long period of time
Short period of time
The mean distance of the centre of the sun from the centre of the earth is called
Light gear
Kilometer
Astronomical distance
Altimeter
1 light light year is equal to
9.467 x 1015 m
9.467x1015 cm
9.467 x 1015 Km
9.467 x 1015 mm
Which of the following are / is the zero error/errors of a screw gauge?
No zero error
Positive zero error
Negative zero error
All the above
Screw gauge is used to measure the diameter of
Crow bar
Thin wire
Cricket ball
Earth
