Kindly answer the question in the box mentioned below

1.     What is the purpose of hem?

A It helps for easy folding the surface of steel

B It prevents excess material from over lapping

C It helps the work to be formed to the required size

D It stiffens the sheet of the metal and away with sharp edges

2.     What is the use of single hem?

A It forms corners and edges

B It makes the edge smooth and stiff

C To strengthen the edges of lengthy article

D It prevents excessive material from over lapping

3.     Which is radial line method pattern development?

A Boxes

B Prisms

C Cylinders

D Pyramids

4.     What is the use of triangulation pattern development method?

A To develop pattern of cylinder

B To develop the shapes with apex

C To provide the shape forming pyramid

D To develop pattern shapes having no apex

5.     Which material is used for riveting?

A Cast iron

B Mild steel

C Stainless steel

D Low carbon steel

6.     What is the use of rivets?

A Joining of two wooden planks with nails

B Joining method for temporary joints of two pieces

C Joining metal sheets and plates in fabrication work

D Joining of two different metals by screws

7.     How the size of rivets are determined?

A By its total length

B By its head diameter

C By its head shape and its length

D By its diameter and length of the shank

8.     What is the name of the part of drill bit that fits into the slot of drilling machine?

A Tang

B Land

C Flute

D Shank

9.     Which part of the drill is the driving end what is fitted on the machines?

A Tang

B Flute

C Shank

D Handle

10.  How many types of shanks are used in drill bits?

A Two

B Four

C Three

D Only one