Loading practice questions

A focused practice platform for competitive-exam MCQs, subject wise, topic wise practice, and current affairs revision.

Exams

SSC CGL
UPSC CSE PRELIMS
IBPS PO
RRB NTPC
CDS

Subjects

Mathematics
Physics
General Knowledge
English
Reasoning

Resources

Current Affairs
Search MCQs
Practice Sets

Company

About Us
Contact
Privacy Policy
Terms of Use
Disclaimer
Copyright

Practice library for exams, subjects, and daily revision. For learning purposes only.

© 2026 ObjectiveMcq.ComAll rights reserved

Defects : Engineering Materials Science MCQ Practice Questions & Answers (English) - ObjectiveMcq

Engineering Materials Science Practice

Topics

General
Structure And Properties Of Engineering Materials

PracticeEngineering Materials ScienceStructure And Properties Of Engineering MaterialsDefects

Defects in Engineering Materials Science : Practice MCQ Questions & Answers with Explanations

1 practice sets · Page 1 of 1

Engineering Materials ScienceEasyStructure And Properties Of Engineering MaterialsDefects

1.

Frenkel defect is due to the existence of

A

extra electrons in the crystal

B

extra holes in valence bond

C

lattice distortions in crystal

D

More than one of the above

E

None of the above

Correct Answer:

(C) lattice distortions in crystal

Explanation:

Explanation: Frenkel Defect (also known as the Frenkel pair/disorder) is a defect in the lattice crystal where an atom or ion occupies a normally vacant site other than its own. As a result, the atom or ion leaves its own lattice site vacant. Important Points Schottky Defect | Frenkel Defect