In screw gauge the barrel is tapered and has 100 or 50 equal divisions on it. This is called the
Pitch scale
Ordinary scale
Head scale
Least count
Equation for Least Count ,L.C =
P / N
PN
N/P
PN2
A screw gauge moves 2 mm on 4 head rotations. The head scale is divided into 50 divisions. Give the Least Count.
1 mm
0.01 mm
0.5 mm
0.05 mm
Screw gauge works on the principle of
Screw in a nut
Lever
Jack and screw
All of the above
Pitch of the screw x No of revolution made =
distance travelled
displacement
CHSR
PSR
Equation for pitch of the screw is, p =
p = x / n
p = xn
p = n / x
p = n2x
In screw gauge, there are ______________ types of zero errors.
one
two
three
many
The distance travelled by the tip of a screw for one complete rotation of its head is called the
Pitch of the screw
Rotation axis
None of these
While measuring the diameter of a lead shot using a screw gauge,the reading on the pitch scale is found to be 7.5 mm and that on the head scale is 48. If the least count is 0.01 mm,the diameter of the lead shot is
0.798 mm
7.98 mm
0.0798 mm
0.00798 mm
The other name of screw gauge is
Rheometer
Micrometer
Nanometer
Decameter
