- Heat loss through furnace wall will increase
- Temperature inside the furnace will fall
- Temperature on the outer surface of furnace walls will drop
- Energy consumption will increase
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Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by?
Answer: Option 3 Let'
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The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to (Prandtl number) n, where n is equal to?
Answer: Option 1 The ratio of the thickness of thermal boundary layer to the thickness of hydrodynamic boundary layer is equal to -1/3
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If ‘H’ is the height of wall between centers of supports, then the effective height of wall where concrete floors have a bearing on wall irrespective of the direction of span will be?
Answer: Option 1 Let'
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For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number)?
Answer: Option 2 Let'
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Insurance refers to protection against an event that _________ happen whereas Assurance refers to protection against an event that _________ happen.?
Answer: Option 2 Insurance refers to protection against an event that might happen whereas Assurance refers to protection against an event that will happen.
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Which furnace employs an I.D. fan for the removal of flue gases from the furnace?
Answer: Option 4 Let'
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The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.?
Answer: Option 4 Let'
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Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of?
Answer: Option 3 Let'
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Which furnace consumes maximum refractory annually in an integrated steel plant?
Answer: Option 3 Let'
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