401. The true stress true curve is given by σ = 1400 ε ^0.33, where the stress σ is in MPa. The true stress maximum load (in MPa) is

1. 1. 971

   
   
   

   2. 750

   
   
   

   3. 698

   
   
   

   4. 350

   
   
   

---

1. View Hint View Answer Discuss in Forum

   σ = 1400ε^0.33 MPa.
   At UTS, n = 0.33
   σ _f = 1400 (0.33)^0.33
   σ 971 MPa

   Correct Option: A

   σ = 1400ε^0.33 MPa.
   At UTS, n = 0.33
   σ _f = 1400 (0.33)^0.33
   σ 971 MPa

---

402. A lever having 90° bend is to be produced by drop forging using mild steel bar as raw material.
     The various operations to be performed on it during forging are:
     P-Cutting;
     Q-Bending:
     R-Fullering:
     S-Blocking cum finishing;
     T-Edging
     The correct sequence for performing the operation is

1. 1. PQRS

   
   
   

   2. RTQSP

   
   
   

   3. TRSQP

   
   
   

   4. RQTSP

   
   
   

---

1. View Hint View Answer Discuss in Forum

   RTQSP

   Correct Option: B

   RTQSP

---

---

403. Flash and gutter are provided in drop forging dies at the following stage:

1. 1. Blocking

   
   
   

   2. Preforming (Edging)

   
   
   

   3. Finishing

   
   
   

   4. Fullering

   
   
   

---

1. View Hint View Answer Discuss in Forum

   Finishing

   Correct Option: C

   Finishing

---

404. Cold shut (lap) may occur in products obtained by

1. 1. Casting

   
   
   

   2. Forging

   
   
   

   3. Machining

   
   
   

   4. Welding

   
   
   

   5. A and B

   
   
   

---

1. View Hint View Answer Discuss in Forum

   Casting when molten metal is not able to reach in corners.

   Correct Option: E

   Casting when molten metal is not able to reach in corners.

---

---

405. Consider the following steps in forging a connecting rod from the bar stock
     1. blocking
     2. trimming
     3. finishing
     4. edging
     Select the correct sequence of these operations using the codes given below:

1. 1. 1-2-3-4

   
   
   

   2. 2-3-4-1

   
   
   

   3. 3-4-1-2

   
   
   

   4. 4-1-3-2

   
   
   

---

1. View Hint View Answer Discuss in Forum

   Edging – blocking – Finishing – Trimming.

   Correct Option: D

   Edging – blocking – Finishing – Trimming.

---