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Measuring Instruments

Measuring Instruments

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Question 1
To measure very small lengths a __________ is used.
A
metre scale
B
vernier calliper
C
screw gauge
D
vernier scale
Question 2
The screw head is provided with _________ to prevent from undue pressure exerted by the user.
A
frame
B
milled head
C
pitch
D
ratchet
Question 3
The principle of the crew is used in a _______
A
screw gauge
B
vernier calliper
C
physical balance
D
scale
Question 4
The distance between two screw threads is called ________
A
pitch
B
least count
C
zero error
D
zero correction
Question 5
The distance moved by the tip of the screw for a rotation of one division on the head scale is _________
A
length of the screw
B
the pitch of the screw
C
the diameter of the screw
D
least count of the screw
Question 6
The  pitch scale is graduated in ________
A
millimetre
B
metre
C
division
D
centimetre
Question 7
The head scale is graduated in _______
A
metre
B
division
C
millimetre
D
centimetre
Question 8
If the zero of the head scale coincides with the pitch scale axis, the error in the instrument is ____________
A
positive
B
negative
C
zero
D
one
Question 9
If the zero of the head scale is below the pitch scale axis, the error in the screw gauge is _______
A
positive
B
negative
C
zero
D
one
Question 10
The least count of screw gauge is __________
A
0.01 mm
B
0.1 mm
C
0.01cm
D
0.1 cm
Question 11
Screw gauge is used to measure_______
A
diameter of a ball bearing
B
thickness of metal sheet
C
small change in the length of rod when heated
D
all the above
Question 12
The unit used to measure very long distance is ________
A
astronomical unit
B
kilometre
C
millimetre
D
none
Question 13
The distance of the centre of the sun from the centre of the earth is ________
A
light year
B
astronomical unit
C
angstrom
D
kilometre
Question 14
The distance travelled by light in one year in vacuum is _______
A
light year
B
astronomic unit
C
velocity of light
D
none
Question 15
In a screw gauge, the head of the sleeve is divided into _______
A
1000 divisions
B
10 divisions
C
100 divisions
D
2 divisions
Question 16
Match the following
  1. Distance between two successive thread of a screw a. Millimetre
  2. pitch scale b. Laser pulse method
  3. Least count of the screw c. Pitch of the screw
  4. Distance of a moon from the earth d. Pitch/ No. of head scale divisions
A
2 4 1 3
B
3 1 4 2
C
4 1 3 2
D
1 3 2 4
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There are 16 questions to complete.

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