- (A) Alloy steel
- (B) Grey cast iron
- (C) Mild steel
- (D) High carbon steel
Chemical Engineering Mcqs
- (A) Can’t be used in the form of pressure sensitive tapes
- (B) Can’t join two dissimilar metals
- (C) Cure instantaneously after application on a surface
- (D) None of these
- (A) Blow down valve
- (B) Blow off cock
- (C) Fusible plug
- (D) Safety valve
- (A) Natural
- (B) Neoprene
- (C) Butadiene
- (D) Nitrile
- (A) Independent of
- (B) Inversely proportional to
- (C) Directly proportional to
- (D) None of these
- (A) Cold cracking of a weld is due to the presence of hydrogen gas in the weld
- (B) True stress is given by, ζ = ζE (1 + εE), where ζE and εE are engineering stress and engineering strain respectively
- (C) Phosphorous can be easily recovered in the iron blast furnace
- (D) High residual stress at the surface is beneficial for fatigue properties of a material
- (A) For a pressure vessel to be classified as ‘thin vessel’, the ratio of wall thickness to mean radius is less than 0.1
- (B) For calculating forces and efficiency of riveted joint, either rivet diameter or rivet hole diameter is used in case of pressure vessel and in structural work
- (C) Longitudinal joint is normally made butt joint to maintain the circularity of the vessel
- (D) Maximum diameter of the opening provided in a pressure vessel, which does not require any compensation is 200 mm
- (A) Sphlerite is zinc oxide
- (B) The first law of the thermodynamics is stated as δE = δQ – δW
- (C) Lead can be produced in a blast furnace
- (D) T. ferrooxidans is a fungus that can be used for leaching chalcopyrite
- (A) Weldability of high carbon steel is poorer compared to low carbon steel
- (B) Invar is a magnetic alloy
- (C) Magnetic permeability of the diamagnetic material is less than one
- (D) Martenistic transformation never goes to completion (i.
- (E) , 100%) at room temperature
- (A) A ferromagnetic material becomes paramagnetic above the ‘Curie temperature’
- (B) Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials
- (C) Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces
- (D) Tungsten steel and alnico are not hard magnetic materials
