1. What is Scriber, Divider, Caliper, and Hammer

 

🔧 1. What is Scriber, Divider, Caliper, and Hammer

Tools -     

1- Scriber

Definition- 

A scriber is a hand tool used in engineering workshops to mark lines on metal surfaces before cutting or machining.

2- Divider

Definition-    A divider is a tool with two pointed legs used to mark circles or arcs and measure distances on a workpiece.

3- Caliper

Definition-   A caliper is used to measure internal, external, and depth dimensions of an object accurately.

4- Hammer

Definition-    A hammer is a striking tool used for shaping metal, driving nails, or fitting parts together.

🧩 2. Types of Each Tool

Scriber - 

(a) Straight Scriber  (b) Bent or Cranked Scriber  (c) Double-ended Scriber

Divider-

(a) Firm Joint Divider (b) Spring Joint Divider  (c) Wing Divider

Caliper-

(a) Inside Caliper  (b) Outside Caliper  (c) Vernier Caliper  (d) Digital Caliper  (e) Dial Caliper

Hammer-

(a) Ball Peen Hammer  (b) Cross Peen Hammer  (c) Straight Peen Hammer  (d) Claw Hammer  (e) Sledge Hammer

⚙️ 3. Uses of Each Tool

Scriber

 To mark reference lines on metal for cutting, drilling, or machining.

Divider

To mark circles/arcs, transfer measurements, or divide lines equally.

Caliper

To measure internal/external diameters, thickness, and depth of objects.

Hammer

To strike, shape, or assemble metal parts and drive nails or punches.


🧱 4. Materials Used to Make These Tools


Scriber

Made from Hardened and Tempered Steel (for a sharp, wear-resistant point).

Divider

Made from Carbon Steel or Tool Steel for strength and accuracy.

Caliper

Made from Stainless Steel, Carbon Steel, or Brass (for corrosion resistance and precision).

Hammer

Head made of Forged Steel; handle made of Wood (Ash/Hickory), Fiberglass, or Steel.


🧠 Tool Use and Type 


Scriber

use- Marking lines on metal.

type- Straight, Bent, Double-ended Hardened steel

Divider

use- Mark circles, measure distance.

type- Spring joint, Firm joint, Wing Carbon/tool steel

Caliper

use- Measure internal/external size

type- Inside, Outside, 

Hammer

use- Striking, shaping purpose of metal .

type- Ball peen, Cross peen, Claw hammer, sledge hammer .

🧰 1. Which tool is used for marking lines on metal surfaces?


A) Divider

B) Caliper

C) Scriber

D) Hammer

✅ Answer: C) Scriber

🧰 2. Which tool is used for drawing circles or arcs on metal?


A) Scriber

B) Divider

C) Caliper

D) Hammer

✅ Answer: B) Divider

🧰 3. Which tool is used to measure internal and external dimensions?


A) Caliper

B) Scriber

C) Divider

D) Hammer

✅ Answer: A) Caliper

🧰 4. Which tool is used for striking and shaping metal?


A) Caliper

B) Hammer

C) Divider

D) Scriber

✅ Answer: B) Hammer

🧰 5. Scriber is made of which material?


A) Mild Steel

B) Hardened Steel

C) Brass

D) Aluminum

✅ Answer: B) Hardened Steel

🧰 6. Divider is mainly made from —


A) Cast Iron

B) Tool Steel

C) Plastic

D) Copper

✅ Answer: B) Tool Steel

🧰 7. Caliper is used for —


A) Striking

B) Measuring

C) Drawing

D) Grinding

✅ Answer: B) Measuring

🧰 8. Hammer head is made of —


A) Wood

B) Forged Steel

C) Plastic

D) Brass

✅ Answer: B) Forged Steel

🧰 9. Handle of a hammer is usually made from —


A) Copper

B) Wood or Fiberglass

C) Cast Iron

D) Steel only

✅ Answer: B) Wood or Fiberglass

🧰 10. Which of the following is NOT a type of hammer?


A) Ball Peen Hammer

B) Claw Hammer

C) Wing Hammer

D) Sledge Hammer

✅ Answer: C) Wing Hammer

🧰 11. Which of the following is a type of caliper?


A) Vernier Caliper

B) Wing Caliper

C) Bent Caliper

D) Cross Caliper

✅ Answer: A) Vernier Caliper

🧰 12. Straight and Bent are types of —


A) Divider

B) Scriber

C) Caliper

D) Hammer

✅ Answer: B) Scriber

🧰 13. Spring and Firm Joint are types of —


A) Divider

B) Hammer

C) Scriber

D) Caliper

✅ Answer: A) Divider

🧰 14. Ball Peen Hammer is mainly used for —


A) Carpentry

B) Riveting and Metal Work

C) Digging

D) Welding

✅ Answer: B) Riveting and Metal Work

🧰 15. Vernier Caliper can measure —


A) Only external diameter

B) Only internal diameter

C) Both internal and external diameters with depth

D) Only thickness

✅ Answer: C) Both internal and external diameters with depth

🧰 16. The pointed ends of divider are used for —


A) Cutting

B) Measuring distance on drawings

C) Hammering

D) Scribing deep lines

✅ Answer: B) Measuring distance on drawings

🧰 17. Scriber point should be kept —


A) Blunt

B) Sharp

C) Flat

D) Rounded

✅ An

swer: B) Sharp

🧰 18. The main purpose of a hammer is to —

A) Measure distance

B) Mark lines

C) Strike or shape materials

D) Cut sheets

✅ Answer: C) Strike or shape materials

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