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Assignment

Kindly answer the questions in the box give below:

1. By which material, the steel rules are made of?
A Mild steel
Spring steel
High speed steel
D High carbon steel

2 What is the reading accuracy of a steel rule?
A 0.1 mm

0.2 mm
0.5 mm
0.6 mm

3 What is the purpose for the surface of the steel rule is coated with satin - chrome?

A  To get accurate reading
B  To make good appearance
C  To identify the graduation easily
D  To reduce glare and prevent rusting

 
What is the name of the instrument marked as ‘x’?
    
Divider
B  Inside caliper
C Outside caliper
D Odd leg caliper


Which one is the way for preparing white wash marking media?

Chalk mixed with turpentine
B  Chalk powder mixed with water
C  White lead powder mixed with water
D  White lead powder mixed with methylated spirit

6 In which surface, Prussian blue marking media is to be used?

A On rough forging with oxidized surfaces
B On filed (or) machine - finished surfaces
C On rough casting with oxidized surfaces
D On rough forgings and casting with oxidized surfaces

7 Which marking medium is commercially available with different colours ?

White wash
B  Prussian blue
C  Copper sulphate
D Cellulose lacquer

What will happen, if the copper sulphate coating marking medium is not dried well?

It will erase the markings quickly
B  Marking will immediately disappear
C  The solution may stick on the instrument
D  One more layer will form on the finished surfaces

9 What is the use of centre punch?
A To locate the holes to be drilled
B For serving lines on materials

To check the flatness of surfaces
D  For measuring distance between points

10 How the fine setting can be done in firm joint caliper?

A By moving the pivoted legs
B By opening the tips by hand
By adjusting legs on one end
By lightly tapping on a wooden surface