Mechanical Engineering Mcqs
Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ______________________?

A. former generates steam at high pressure
B. former occupies less space for same power
C. rate of steam flow is more in former case
D. former is used for high installed capacity

Boiler H.P. is defined as the ________________ ?

A. Steam evaporation rate per kg of fuel fired
B. Work done in evaporating 1 kg of steam per hour from and at 100°c into dry saturated steam
C. The evaporation of 15.65 kg of water per hour from and at 100°c into dry saturated steam
D. Work done by 1 kg of steam at saturation condition

The ratio of heat utilised to produce steam and the heat liberated in furnace is known as___________________?

A. boiler effectiveness
B. boiler evaporative capacity
C. factor of evaporation
D. equivalent evaporation

The fusible plug in small boilers is located ________________?

A. In the drum
B. In the fire tubes
C. Above steam dome
D. Over the combustion chamber

The number of drums in Benson steam generator is_________________?

A. One
B. Two
C. One steam drum and one water drum
D. No drum

The difference between cornish boiler and lancashire boiler is that_________________?

A. Former is fire tube type and latter is water tube type boiler
B. Former is water tube type and latter is fire tube type
C. Former contains one fire tube and latter contains two fire tubes
E. None/of the above

If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined by___________________?

A. Throttling calorimeter
B. Separating calorimeter
C. Combined separating and throttling calorimeter
D. Bucket calorimeter

On Mollier chart, flow through turbine is represented by ________________?

A. Horizontal straight line
B. Vertical straight line
C. Straight inclined line
D. Curved line

On Millier chart, the constant pressure lines_________________?

A. Diverge from left to right
B. Diverge from right to left
C. Are equally spaced throughout
D. First rise up and then fall