E-PolyLearning

46. Absolute zero pressure can be attained at a temperature of
a. 0°C
b. 50°K
c. 0°R
d. none of these
View Answer Report Discuss 50-50!
Answer: (c).0°R

47. The product out from a cupola is called
a. wrought iron
b. pig iron
c. cast iron
d. none of these
View Answer Report Discuss 50-50!
Answer: (c).cast iron

48. In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
a. t = 15 - 0.0065 h
b. t = 15 + 0.0065 h
c. t = 0.0035 h - 15
d. t = 15 - 0.0035 h
View Answer Report Discuss 50-50!
Answer: (a).t = 15 - 0.0065 h

49. A high pressure boiler generates steam at a pressure greater than __________ kg/cm² .
a. 10
b. 30
c. 50
d. 80
View Answer Report Discuss 50-50!
Answer: (d).80

50. Evaporative cooling process employs a combination of cooling and humidification in which the
a. sensible heat is added.
b. sensible heat is removed and the latent heat is added.
c. latent heat is removed.
d. sensible heat is added and latent heat is removed.
View Answer Report Discuss 50-50!
Answer: (b).sensible heat is removed and the latent heat is added.