The best criterion for analysing an economic investment is the Future value method Salvage value Rate of return criterion Present value method TRUE ANSWER : ? YOUR ANSWER : ?
Cold chiesel & hammers are made of High carbon steel High speed steel Mild steel Forged steel TRUE ANSWER : ? YOUR ANSWER : ?
Free oxygen is removed from boiler feed water, because it Causes explosion Is corrosive None of these Reduces heat transfer co-efficient TRUE ANSWER : ? YOUR ANSWER : ?
First empirical temperature scale conceived is the __________ temperature scale. Absolute Celcius Farenhite Reaumer TRUE ANSWER : ? YOUR ANSWER : ?
Buoyancy force depends on the __________ the liquid. Viscosity of Surface tension of Displaced mass of Depth of immersion in TRUE ANSWER : ? YOUR ANSWER : ?
When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively Increases & increases Decreases & increases Decreases & decreases Increases & decreases TRUE ANSWER : ? YOUR ANSWER : ?
The weight of a body at the centre of the earth is Zero None of these Infinite Same as on the surface of the earth TRUE ANSWER : ? YOUR ANSWER : ?
A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer is termed as 'rubber' if its percentage elongation is more than __________ percent. 400 200 300 150 TRUE ANSWER : ? YOUR ANSWER : ?
__________ is the process used for setting up compressive stresses in the surface of a metal to improve its fatigue strength. Lancing Spinning Slugging Shot peening TRUE ANSWER : ? YOUR ANSWER : ?
In radiative heat transfer, a grey surface is the one, which has Emissivity independent of wavelength Equal brightness in all directions Zero reflectivity Grey appearance to the eye TRUE ANSWER : ? YOUR ANSWER : ?