Which of the following substance will have same percentage in both proximate and ultimate analysis___________________?
(A) ash
(B) volatile matter
(C) moisture
(D) hydrogen
(D) none of the above
Lancashire boiler is of____________________?
(A) stationary<fire tube-type
(B) horizontal type
(C) natural cirulation type
(D) internally fired type
(D) all of the above
Water tube boilers are those in which________________?
(A) flue gases pass through tubes and water around it
(B) water passes through the tubes and flue gases around it
(C) work is done during adiabatic expansion
(D) change in enthalpy
(D) none of the above
Steam engine operates on_________________?
(A) carnot cycle
(B) joule cycle
(C) Stirling cycle
(D) brayton cycle
(D) none of the above
The lenght of Cornish boiler is of the order of _________________?
(A) 2-4 m
(B) 3-5 m
(C) 5-7.5 m
(D) 7-9 m
(D) 9-11 m
For burning 1 kg of carbon to CO as per chemically correct combusiton, amount of air required is___________________?
(A) 1 kg
(B) 4/3kg
(C) 8/3kg
(D) 2 kg
(D) 16/3 kg
Which of the following gases has the highest calorific value ________________?
(A) producer gas
(B) coal gas
(C) water gas
(D) blast furnace gas
(D) coke oven gas
Efficiency of rankine cycle can be increased by_________________?
(A) decreasing initial steam pressure and temperature
(B) increasing exhaust pressure
(C) decreasing exhaust pressure
(D) increasing the expansion ratio
(D) increasing number of regenerative heaters
Which of the following boilers is best suited to meet fluctuating demands___________________?
(A) babcock and wilcox
(B) locomotive
(C) lancashire
(D) cochran
(D) comish
The shell diameter and length of locomotive boiler are_______________?
(A) 1.5 m, 4 m
(B) 1.5 m, 6 m
(C) 1 m, 4 m
(D) 2 m, 4 m
(D) 1.5 m, 8 m