TasDia Network
TasDia Network

MCQs 1: Iron is ____________________?

paramagnetic ferromagnetic ferroelectric dielectric none of the above
Answer Explanation

MCQs 2: Chilled cast iron has____________________?

no graphite a very high percentage of graphite a low percentage of graphite graphite as its basic constituent of composition none of the above is true
Answer Explanation

MCQs 3: White cast iron contains carbon in the form of__________________?

free carbon graphite cementite white carbon ferrite
Answer Explanation

MCQs 4: An important property of high silicon (12 – 18%) cast iron is the high__________________?

tenacity brittleness plasticity corrosion resistance hardness
Answer Explanation

MCQs 5: Steel contains____________________?

80% or more iron 50% or more iron alloying elements like chromium, tungsten nickel and copper elements like phosphorus, sulphur and silicon in varying quantities high quantities of sulphur
Answer Explanation

MCQs 6: Annealing of white cast iron results in production of_________________?

malleable iron nodular iron spheroidal iron grey iron none of the above
Answer Explanation

MCQs 7: Hardness of steel depends on_________________?

amount of carbon it contains the shape and distribution of the car-bides in iron method of fabrication contents of alloying elements the quality of ore from which it is made
Answer Explanation

MCQs 8: Maximum percentage of carbon in austenite is______________?

0.025% 0.26% 0.8% 1.25% 1.7%.
Answer Explanation

MCQs 9: In which of the following cases, consideration of creep is important_________________?

flywheel of steam engine cast iron pipes cycle chains gas turbine blades piston I.C. engine
Answer Explanation

MCQs 10: Depth of hardness of steel is increased by addition of_________________?

nickel chromium tungsten vanadium all of the above
Answer Explanation

MCQs 11: Machining properties of steel are improved by adding___________________?

sulphur, lead, phosphorous silicon, aluminium, titanium vanadium, aluminium chromium, nickel lubricants
Answer Explanation

MCQs 12: The basic constituents of Hastelloy are_________________?

aluminium, copper etc nickel, molybdenum etc nickel, copper, etc all of the above none of the above
Answer Explanation

MCQs 13: German silver is an alloy of___________________?

silver and some impurities refined silver nickel, copper and zinc nickel and copper silver and gold
Answer Explanation

MCQs 14: A cold chisel is made of_______________?

mild steel cast iron H.S.S. high carbon german silver
Answer Explanation

MCQs 15: Inconel is an alloy of___________________?

nickel, chromium and iron nickel, copper nickel, chromium nickel, zinc nickel, lead
Answer Explanation

MCQs 16: Solder is an alloy consisting of________________?

tin, antimony, copper tin and copper tin and lead lead and zinc lead and copper
Answer Explanation

MCQs 17: Induction hardening is the process of_____________________?

hardening surface of workpiece to ob-tain hard and wear resistant surface heating and cooling rapidly increasing hardness throughout inducing hardness by continuous process hardening core
Answer Explanation

MCQs 18: Process of austempering results in__________________?

formation of bainite structure carburised structure martenistic structure lamellar layers of carbide distributed throughout the structure relieving of stresses throughout a component
Answer Explanation

MCQs 19: Hardness of martensite is about___________________?

RC 65 RC 48 RC 57 RC 80 RC 32
Answer Explanation

MCQs 20: Materials after cold working are subjected to following process to relieve stresses__________________?

hot working tempering normalising annealing special heat treatment
Answer Explanation

Related Topics

About Us | Contact Us | Privacy Policy
ABOUT US
Category
Who We Are

TasDia Network, this platform not only provides you the best educational stuff but besides this, we are creating thousands of new ideas to making your signature and planning much more on a single platform.

© 2020-2023, TasDia Network

All rights of the publication are reserved by tasdia.com.