PyQdeck LogoPyQdeckSubjectsSyllabusBlog
Back to the 2025 paper

Module 4: Heat Treatment of Steel

20252m

Choose the correct option:

Identify the correct statement regarding case hardening/surface hardening processes:

(i) Harden only high-carbon steels by through hardening
(ii) Modify the surface composition by diffusion of carbon and/or nitrogen while keeping a tougher core
(iii) Rely only in rapid quenching with no change in composition
(iv) Use only flame or induction as heat sources

Search GoogleAsk AI

Similar questions

Engineering MaterialsChoose the correct option: Carbon and Nitrogen are introduced into the surface of steel during (i) Normalizing (ii) Cyaniding (iii) Hardening (iv) Tempering20242mEngineering MaterialsChoose the correct option: The main purpose of normalising a hypoeutectoid steel is to: (i) Produce very soft coarse pearlite for maximum ductility only (ii) Refine grain size and produce uniform fine pearlite for improved strength and toughness (iii) Form martensite for maximum hardness (iv) Produce spheroidised cementite for easy machining20252mEngineering MaterialsChoose the correct option: Which of the following is the hardest? (i) Austenite (ii) Bainite (iii) Pearlite (iv) Martensite20242mEngineering MaterialsChoose the correct option: Which statement about hardness testing is most appropriate for steels? (i) Rockwell hardness directly gives Young's modulus (ii) Brinell hardness can be empirically related to ultimate tensile strength (iii) Vickers hardness is expressed in HRC units (iv) Hardness tests are unrelated to strength20252m
PreviousChoose the correct option: The main purpose of normalising a hypoeutectoid steel is to: (i) Produce very soft coarse pearlite for maximum ductility only (ii) Refine grain size and produce uniform fine pearlite for improved strength and toughness (iii) Form martensite for maximum hardness (iv) Produce spheroidised cementite for easy machiningNextChoose the correct option: Grey and spheroidal cast irons mainly differ in that the graphite phase is present as: (i) Flakes in grey iron and spheroidal nodules in spheroidal iron (ii) Cementite in grey iron and flakes in spheroidal iron (iii) Spheroidal nodules in grey iron and flakes in spheroidal iron (iv) Cementite in both alloys
Official AppAndroid App

PYQDeck for Android

Solve BEU previous-year exam papers anywhere, anytime. Fast search, offline paper viewing, and step-by-step solutions designed specifically for your phone.

Get on Google Play