⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs361
Orsat meter is used for__________________?
Agravimetric analysis of the flue gases
Bvolumetric analysis of the flue gases
Cmass flow of the flue gases
Dmeasuring smoke density of flue gases E. none of the above
362
An ideal regenerative cycle is ______________________?
Aequal to carnot cycle
Bless than carnot cycle
Cmore than carnot cycle
Dcould be anything E. none of the above
363
Lancashire ‘boiler is a__________________?
Astationary fire tube boiler
Bstationary water tube boiler
Cwater tube boiler with natural/forced circulation
Dmobile fire tube boiler E. none of the above
364
On Millier chart, the constant pressure lines_________________?
Adiverge from left to right
Bdiverge from right to left
Care equally spaced throughout
Dfirst rise up and then fall E. none of the above
365
The bituminous coal is non-caking if its carbon content is_______________?
A78-81%
B81-85%
C85-90%
D90-95% E. 95-100%.
366
Water at pressure of 4 kg/cm2 and 160°C temperature when exposed to atmosphere will_________________?
Aboil
Bflash i.e. get converted into steam
Cremain as it was
Dcool down E. none of the above
367
In a throttling process________________?
Asteam temperature remaisn constant
Bsteam pressure remains constant
Csteam enthalpy remains constant
Dsteam entropy remains constant E. steam volume remains constant
368
The pressure at which latent heat of vaporisation of water is zero, is_________________?
Abelow atmospheric pressure
B1 kg/cm2
C100 kg/cm2
D170 kg/cm2 E. 225.6 kg/cm2
369
The latent heat of steam with increase of pressure__________________?
Aremains same
Bincreases
Cdecreases
Dbehaves unpredictably E. none of the above
370
At which pressure the properties of water and steam become identical_________________?
A0.1 kg/cm2
B1 kg/cm2
C100 kg/cm2
D225.6 kg/cm2 E. it is never possible