- (A) < 2
- (B) < 5
- (C) < 8
- (D) < 10
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- (A) Fans
- (B) Arrangement of heating stock in the furnaces
- (C) Location of outlet ports and heating & combustion devices
- (D) All
- (A) Thermal efficiency of the process
- (B) Sources of heat losses
- (C) Scope of reduction of heat losses
- (D) All
- (A) In a static mass of liquid, the pressure at a point is the same for all liquids
- (B) Pressure decreases exponentially with elevation in an isothermal atmosphere
- (C) Atmospheric pressure = absolute pressure ‒ gage pressure
- (D) As per Pascal’s law, the pressure at a point in a static or uniformly moving fluid is equal in all directions
- (A) The value of Mach number is always unity at the throat
- (B) No shock wave develops in the tube when the Mach number at exit is greater than unity
- (C) Throughout the converging portion of the tube, the density increases in the downstream direction
- (D) None of these
- (A) Premix
- (B) Outside mixing type
- (C) Rotary
- (D) Diffusion
- (A) Preheating the combustion air
- (B) Oxygen enrichment of combustion air
- (C) Preheating the fuel gas
- (D) All
- (A) Walking beam reheating furnace
- (B) Reverberatory furnace
- (C) Tower furnace
- (D) Tunnel kiln
- (A) Transportation of coal
- (B) Drying of coal
- (C) Combustion of coal by supplying it around the burner
- (D) Preheating the primary air
- (A) The shear stress at the pipe (dia = D, length = L) wall in case of laminar flow of Newtonian fluids is (D/4L). Δp
- (B) In the equation, T. gc = k. (du/dy)n the value of ‘n’ for pseudoplastic and Dilatant fluid are 1 respectively
- (C) Shear stress for Newtonian fluid is proportional to the rate of shear in the direction perpendicular to motion
- (D) With increase in the Mach number >0.6, the drag co-efficient decreases in case of compressible fluids
