Coke is produced by Pulverizing coal in inert atmosphere Strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel Heating wood in a limited supply of air at temperatures below 300°C Enriching carbon in the coal TRUE ANSWER : ? YOUR ANSWER : ?
In an impulse reaction turbine, the pressure drops gradually and continuously over Moving blades None of these Fixed blades Both fixed and moving blades TRUE ANSWER : ? YOUR ANSWER : ?
Desecration of feed water is carried out because it reduces Cavitation of boiler feed pumps pH value of water Heat transfer coefficient Corrosion caused by oxygen TRUE ANSWER : ? YOUR ANSWER : ?
The fire tubes in, a Coarran and Scottish marine boiler are Inclined Horizontal Both horizontal and vertical Vertical TRUE ANSWER : ? YOUR ANSWER : ?
In an ideal impulse turbine, the Absolute velocity at the inlet of moving blade is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following boilers is best suited to meet fluctuating demands? Lancashire Babcock and Wilcox Locomotive Cochran TRUE ANSWER : ? YOUR ANSWER : ?
Clearance ratio is the ratio of Clearance volume to the volume at cut-off Swept volume to the clearance volume Volume at cut-off to the swept volume Clearance volume to the swept volume TRUE ANSWER : ? YOUR ANSWER : ?
The diameter of fire tube of Cornish boiler compared to its shell is One third One fifth One half One fourth TRUE ANSWER : ? YOUR ANSWER : ?
The function of a valve rod is To convert reciprocating motion of the piston into rotary motion of the crank To convert rotary motion of the crankshaft into to and fro motion of the valve rod To provide simple harmonic motion to the D-slide valve To provide reciprocating motion to the slide valve TRUE ANSWER : ? YOUR ANSWER : ?
A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° to each other, is called Woolf type compound engine Tandem type compound engine Receiver type compound engine Both (A) and (B) TRUE ANSWER : ? YOUR ANSWER : ?