The main scale of a vernier callipers reads 10 mm in 10 divisions. 10 divisions of Vernier scale coincide with 9 divisions of the main scale. When the two jaws of the callipers touch each other, the fifth division of the vernier coincides with 9 main scale divisions and the zero of the vernier is to the right of zero of main scale. When a cylinder is tightly placed between the two jaws, the zero of vernier scale lies slightly behind 3.2 cm and the fourth vernier division coincides with a main scale division. The diameter of the cylinder is.

(A)  3.10 cm

(B)  3.8 cm

(C)  3.09 cm

(D)  -3.09 cm

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Main scale reading is -1 mm when there is no object between the jaws. In the vernier calipers, 9 main scale division matches with 10 vernier scale divisions. Assume the edge of the Vernier scale as the '0' of vernier. The thickness of the object using the defected vernier callipers will be :

    

(A)  12.2 mm

(B)  1.22 mm

(C)  12.3 mm

(D)  12.4 mm

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In the vernier calipers, 9 main scale divisions match with 10 vernier scale division. First figure shows the zero error. Assume the edge of vernier as the '0' of vernier. The thickness of the object using the defected vernier callipers will be:

      

(A)  14.0 mm

(B)  1.40 mm

(C)  -14.0 mm

(D)  -1.40 mm

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In the vernier calipers, 9 main scale divisions matched with 10 vernier scale divisions. Assume the edge of vernier scale as the '0' for Vernier Scale.The thickness of the object using the defected vernier capllipers will be:

              

(A)  13.3 mm

(B)  13.4 mm

(C)  13.5 mm

(D)  13.6 mm

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Read the special type of vernier. 20 division of vernier scale are matching with 19 divisions of main scale. Find the reading of the instrument. Assume edge of vernier as '0' of vernier and No Zero error 

                 

(A)  13.70 mm

(B)  13.60 mm

(C)  1.36 mm

(D)  1.37 mm

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In the given Vernier scale, 10 division of vernier scale are matching with 9 divisions of main scale as shown in first figure. Find the diameter of the object in second figure. Assume the edge of the vernier as '0' of vernier.

(A)  15.6 mm

(B)  156 mm

(C)  1.56 mm

(D)  0.156 mm

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Find the thickness of the wire. The least count is 0.01 mm. The main scale reads in mm.

 

(A)  7.62 mm

(B)  7.63 mm

(C)  7.64 mm

(D)  7.65 mm

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Find the zero correction in the given figure.  

1.  -0.6 mm

2.  +0.6 mm

3.  0.4 mm

4.  - 0.4 mm

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Find the zero correction in the given figure. 

 

1.  0.4 mm

2.  0.5 mm

3.  -0.5 mm

4.  -0.4 mm

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One cm on the main scale of vernier callipers is divided into ten equal parts. If 20 divisions of vernier scale coincide with 8 small divisions of the main scale. What will be the least count of callipers?

1.  0.06 cm

2.  0.6 cm

3.  0.5 cm

4.  0.7 cm

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