A. steam temperature remaisn constant
B. steam pressure remains constant
C. steam enthalpy remains constant
D. steam entropy remains constant
E. steam volume remains constant
Related Mcqs:
- On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by_______________?
A. horizontal straight line
B. vertical straight line
C. straight inclined line
D. curved line
E. none of the above - In a throttling process_________________?
A. heat transfer takes place
B. work is done by the expanding steam
C. internal energy of steam changes
D. all of the above
E. none of the above - One kg of steam sample contains 0.8 kg dry steam; it’s dryness fraction is__________________?
A. 0.2
B. 0.8
C. 1.0
D. 0.6
E. 0.5 - The diameter of internal flue tubes in a Lancashire boiler compared to its shell is_________________?
A. one-half
B. one-third
C. one-fourth
D. one-fifth
E. two-fifth - Cochran boiler is a__________________?
A. horizontal fire-tube boiler
B. horizontal water-tube boiler
C. veritcal water-tube boiler
D. vertical fire tube boiler
E. forced circulating boiler - On Mollier chart, flow through turbine is represented by ________________?
A. horizontal straight line
B. vertical straight line
C. straight inclined line
D. curved line
E. none of the above - Which type of boiler can meet rapid changes of load____________________?
A. vertical fire tube type
B. horizontal fire tube type
C. horizontal water tube type
D. vertical water tube type
E. forced circulation type - Proximate analysis of fuel is determination of percentage of ____________________?
A. carbon, hydrogen, nitrogen, sulphur, moisture
B. fixed carbon, ash, volatile matter, moisture
C. higher calorific value
D. lower calorific value
E. rough analysis - The balanced draft furnace is one using _________________________?
A. induced draft fan and chimney
B. induced draft fan and forced draft fan
C. forced draft fan and chimney
D. any one of the above
E. none of the above - Gusset stays in a boiler are provided to____________________?
A. prevent the bulging of flat surfaces
B. avoid explosion in furnace
C. prevent leakage of hot flue gases
D. support furnace freely from top
E. prevent atmospheric air leaking into furnace
