Bissoy.com
Doctors Medicines MCQs Q&A

The main cause of presence of dimple in ductile fracture surface is ___________

The main cause of presence of dimple in ductile fracture surface is ___________ Correct Answer micro voids

The micro void is formed during necking, which then merges and coalescences. After breaking apart, it leaves the material with a rough surface of the void cavity, which is known as dimples.

Related Questions

Consider the following statements for ductile fracture: 1. The material undergoes substantial plastic deformation with high energy absorption before fracture. 2. Presence of cracks on the surface of material initiates this type of failure. 3. Fracture occurs due to necking. Which of the above statements is/are correct? 
Six persons - Akshay, Bobby, Celina, Dimple, Esha, and Faisal took up a job with XYZ Consultants in a week from Monday to Saturday. Each of them joined for different posts on different days. The posts were of-Clerk, Officer, Technician, Manager, Supervisor and Sales Executive though not in the same order. Faisal joined as a Manager on the first day. Bobby joined as a Supervisor but neither on Wednesday nor Friday. Dimple joined as a Technician on Thursday. The officer joined the firm on Wednesday. Esha joined as a clerk on Tuesday. Akshay joined as a Sales Executive. Who joined the firm on Wednesday?
According to Naiya̅yikas we ascertain the relation of universal concomitance between x and y :  (A) We can determine the relation only if we can determine the relation of essential identity between x and y   (B) By perceiving that in all cases the presence of x is accompanied by the presence of y  (C) We can determine the relation only if we can determine the relation of cause and effect between x and y  (D) By not perceiving any instance where the presence of x is not accompanied by the presence of y or vice-versa.  Choose the correct answer from the options given below : 
Brittle fracture needs more energy than the ductile fracture.
The brittle fracture is considered much more severe than ductile fracture.
The Ductile fracture depends strongly on strain rate compared with brittle fracture, which is relatively insensitive to strain rate.
Brittle fracture is more dangerous than ductile fracture because
According to the fracture theory of the material, the critical value of the crack extension force, which makes the crack propagate to the fracture is called the fracture toughness of the material.
The appearance of surface of ductile fracture will be ___________
Consider the following provision in Section 300 of the Indian Penal Code:
Several culpable states of mind are referred to with the:
1. intention to cause death
2. knowledge that the act is so imminently dangerous that it must in all probability cause death
3. intention to cause such bodily injury as the offender know to be likely to cause death of the person to whom harm is caused
4. intention of causing such bodily injury as is sufficient in ordinary course of nature to cause death.
The correct order of the sequence in which they are placed in the provision is: