A. same value
B. higher value
C. lower value
D. lower/higher depending on steam flow
E. unpredicatble
Mechanical Engineering Mcqs
Mechanical Engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Machine Design, Theory of Machines, Hydraulic Machines etc.
A. temperature, time, and turbulance
B. total air, true fuel, and turbulance
C. thorough mixing, total air, and temperature
D. total air, time, and temperature
E. none of the above
A. higher effectiveness of boiler
B. high calorific value coal being burnt
C. fouling of heat transfer surfaces
D. raising of steam temperature
E. leakage of air
A. same
B. more
C. less
D. less or more depending on size of boiler
E. unpredictable
A. reduce hardness and for removal of solids
B. increase efficiency-of thermal power plant
C. increase *heat transfer rate
D. increase steam parameters
E. all of the above
A. tonnes/hr. of steam
B. pressure of steam in kg/cm2
C. temperature of steam in °C
D. all of the above
E. none of the above
A. 200-400 kcal/kg
B. 800-1200 kcal/kg
C. 2000-4000 kcal/kg
D. 5000-8000 kcal/kg
E. 8000-10,000 kcal/kg
A. dry
B. wet
C. saturated
D. supersaturated
E. superheated
A. remain unaffected
B. improve C. worsen
C. may improve/worsen depending on size
D. unpredictable
A. supply of excess, air
B. supply of excess coal
C. burning CO and unburnts in upper zone of furnace by supplying more air
D. fuel bed firing
E. none of the above
