Iti fitter multiple choice questions heat treatment chapter for iti job, iti fitter job, iti fitter govt job

Iti fitter multiple choice questions heat treatment chapter for iti job, iti fitter job, iti fitter govt job


Iti fitter multiple choice questions heat treatment chapter important questions with answers For all types iti fitter competitive exams,iti job, iti fitter job, iti fitter govt job.



1. The purpose of heat treatment is
(a) to change the mechanical property of steel     (b) to change the internal structure of steel     (c) to change the appearance of the component     (d) to change the chemical property of steel 

(a) to change the mechanical property of steel

2. Approximately hardness of HSS milling cutter is 
(a) 45 HRC     (b) 52 HRC     (c) 62 HRC     (d) 75 HRC

(c) 62 HRC

3. Lower critical temperature of high carbon steel while hardening is
(a) 960°C     (b) 900°C     (c) 723°C     (d) 560°C

(c) 723°C

4. Which one of the following processes is used for hardening the surface of tool steel 
(a) carburizing     (b) cyaniding     (c) induction hardening     (d) hardening 

(c) induction hardening

5. The instrument used to measure high temperature in the furnace is
(a) thermometer     (b) barometer     (c) colorimeter     (d) pyrometer

(d) pyrometer

Iti fitter multiple choice questions metals chapter important questions with answers For all types iti fitter government job exam.

6. H.S.S. is tempered at
(a) 220 to 230°C     (b) 230 to 270°C      (c) 280 to 400°C      (d) 550 to 600°C

(d) 550 to 600°C

7. In nitriding processes the NH3 gas is introduced at
(a) 500 to 560°C      (b) 575 to 600°C     (c) 600 to 650°C      (d) 650 to 700°C

(a) 500 to 560°C 

8. The external surface of the part made of mild steel can be hardened by 
(a) tempering      (b) normalising      (c) case hardening     (d) hardening 

(c) case hardening 

Important for iti job, iti fitter job, iti fitter govt job 


9. Heat treatment of metal is necessary 
(a) to produce certain desired properties      (b) to make good appearance on the component      (c) to increase strength of the metal      (d) to make the metal rust proof 

(a) to produce certain desired properties 

10. "CYANIDING" and "NITRIDING" are two methods of 
(a) hardening      (b) case hardening      (c) tempering     (d) normalizing 

(b) case hardening

11. In case hardening process, ammonia gas is introduced on steel. the process is known as 
(a) cyaniding      (b) nitriding      (c) carburizing      (d) ammonising

(b) nitriding

12. The toughness in a steel is increased and brittleness is decreased by a heat treatment operation called as
(a) tempering   (b) normalizing     (c) annealing       (d) case hardening 

(a) tempering

Most important for iti fitter job competitive exams


13. To reduce internal stress of a hardened tool, the method of heat treatment generally applied is
(a) stabilising     (b) annealing     (c) normalizing     (d) tempering 

(d) tempering

14. The purpose of normalizing steel is to 
(a)  improve machinability    (b) remove induced stresses     (c) soften the steel     (d) increase the toughness and reduce brittleness 

(b) remove induced stresses


15. Which one of the following is the solid carburizing material
(a) charcoal     (b) petrol     (c) ammonia     (d) kerosene

(a) charcoal

16. During heat treatment when carbon is dissolved to form solid solution, it is known as
(a) ferrite     (b) pearlite     (c) austenite     (d) cementite

(c) austenite

17. What is the main purpose of annealing
(a) to improve machinability     (b) to improve magnetism     (c) to increase hardness    (d) to increase toughness

(a) to improve machinability

18. Which one of the following by which steel is heated to the required temperature and then cooled slowly in the furnace itself
(a) tempering     (b) hardening     (c) nitriding     (d) annealing

(d) annealing

Top iti fitter previous question paper


19. Which one of the following structure of steel is obtained due to the drastic cooling from the austenite structure
(a) pearlite      (b) cementite     (c) matensite     (d) troostite

(c) matensite

20. Liquid carburizing is done in a heated salt bath. Which one of the following is not a carburizing salt
(a) sodium carbonate     (b) sodium sulphate     (c) sodium cyanide     (d) barium chloride

(b) sodium sulphate

21. After hardening process, the metal becomes more hardened and also will become more
(a) brittle     (b) ductile     (c) malleable     (d) tough

(a) brittle

22. In heat treatment process annealing is done to
(a) increase the toughness     (b) increase the softness     (c) increase the hardness     (d) increase the brittleness

(b) increase the softness

23. Which one of the following heat treatment processes produces a scale free surface on the component
(a) flame hardening     (b) case hardening     (c) nitriding     (d) induction hardening

(d) induction hardening

Remember this iti fitter previous question paper


24. The process of producing a component with tough and ductile core and a hard outer surface is known as
(a) hardening      (b) case hardening     (c) tempering     (d) annealing

(b) case hardening

25. The process of increasing carbon percentage on the surface of low carbon steel is known as
(a) hardening     (b) nitriding     (c) carburizing     (d) tempering

(c) carburizing

26. What is the hardening temperature for H.S.S. tool
(a) 1250°C     (b) 950°C     (c) 850°C     (d) 750°C

(a) 1250°C

27. Which one of the following quenching media is used for hardening H.S.S. tool
(a) water     (b) brine solution     (c) oil     (d) soda water

(c) oil

Top questions for iti job, iti fitter job, iti fitter govt job 


All questions are important for iti job, iti fitter job, iti fitter govt job


Iti fitter multiple choice questions heat treatment chapter important questions with answers For all types iti fitter competitive exams,iti job, iti fitter job, iti fitter govt job. we try add more question so please stay with us


Read more - Iti fitter multiple choice questions jigs and fixtures chapter for iti job, iti fitter job, iti fitter govt job CLICK HERE>>



About Author:


My name is Gokul Bairagi and I am a student and I realized that if qualifying any competitive exams then, mainly required theory knowledge. So I am trying my best to serve you with the best information in the easiest way. That can help everyone to get a better career

Let's Get Connected: .. |.. ..|..


Post a Comment

0 Comments