Related MCQs

• Resistance of an electrical conductor is proportional to its (where, = length and = cross-sectional area of the conductor)
• In troposphere (the weather domain), the temperature '' at height '' above the sea level in metres is given by (where, temperature at sea level is 15°C and is in °C.)
• A high pressure boiler generates steam at a pressure greater than __________ kg/cm .
• Nusselt number is related to Grashoff number () in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as
• Percentage of differential pressure lost in a venturimeter with a tapering of 15° may be about
• Velocity of a gas in sound is not proportional to (where, = Absolute temperature of the gas. = Absolute pressure of the gas. = Ratio of specific heats (/) ρ = specific weight of the gas)
• Maximum heat dissipation occurs from a steel wire ( = 0.5 W/m. k) of 15 mm diameter exposed to air ( = 20W/m .k), when the insulation thickness is __________ mm.
• A thin, flat & square plate measuring 2 m x 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m . The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is __________ W/m °C.
• Solidification time of a molten metal in a casting is proportional to (where, = volume of metal & = its surface area ; in the casting)
• In Newton's law of viscosity, which states that the shear stress is proportional to the __________ Co-efficient of viscosity is called dynamic or absolute viscosity(where, = velocity, = velocity gradient ).