Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as Re0.8, Re0.5 Re-0.8, Re0.5 Re0.5, Re0.8 Re0.8, Re-0.5 TRUE ANSWER : ? YOUR ANSWER : ?
Pick out the wrong statement. If the net positive suction head (NPSH) requirement of a pump is not satisfied, then It will not develop sufficient head to raise water It will deliver low discharge of liquid It will be cavitated Its efficiency will not be affected TRUE ANSWER : ? YOUR ANSWER : ?
Free oxygen is removed from boiler feed water, because it None of these Is corrosive Reduces heat transfer co-efficient Causes explosion TRUE ANSWER : ? YOUR ANSWER : ?
Nitrogen is not an essential component of Any of these Protein Urea Oils & fats TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of coil diameter to wire diameter of a spring is called the spring Index Deflection None of these Form co-efficient TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following metals reacts violently with water ? Magnesium Mercury Sodium Calcium TRUE ANSWER : ? YOUR ANSWER : ?
Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience. Yield strength Elastic limit Proportional limit Maximum point TRUE ANSWER : ? YOUR ANSWER : ?
The most important material handling system in an integrated steel plant is the Truck Belt conveyor Overhead hoists & cranes Diesel locomotive TRUE ANSWER : ? YOUR ANSWER : ?
Alloys having more than 80% copper are generally more Machinable Prone to season cracking Corrosion resistant Abrasion resistant TRUE ANSWER : ? YOUR ANSWER : ?
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be 30000 J 60000 J 90000 J 240000 J TRUE ANSWER : ? YOUR ANSWER : ?