Kerala PSC Previous Years Question Paper & Answer
Page:18
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Boiler Attendant' And exam conducted in the year 2023. And Question paper code was '104/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
D:-kJ/ms
Correct Answer:- Option-D
Question86:-Producer gas is obtained by
A:-partial combustion of coal, coke and charcoal in a mixed air stream
B:-combustion of bituminous coal
C:-passing steam over incandescent coke
D:-passing air and large amount of steam over waste coal at about 650°C
Correct Answer:- Option-A
Question87:-Calorific value of liquid fuel is the amount of heat liberated
A:-by complete combustion of 1 73 of fuel
B:-When temperature of the fuel is raised by 1°C
C:-By complete combustion of 1 kg of fuel
D:-None of the above
Correct Answer:- Option-C
Question88:-Bomb calorimeter is used to determine
A:-higher calorific value of solid and liquid fuels at high pressure
B:-lower calorific value of gaseous fuel at high pressure
C:-higher calorific value of solid and liquid fuels at constant pressure
D:-lower calorific value of gaseous fuel at constant pressure
Correct Answer:- Option-A
Question89:-To calculate net calorific value, product of combustion are
A:-cooled at room temperature
B:-allowed to escape
C:-collected
D:-heated
Correct Answer:- Option-B
Question90:-Which of the following gas has highest calorific value
A:-producer gas
B:-coal gas
C:-mond gas
D:-blast furnace gas
Correct Answer:- Option-B
Question91:-One kg of carbon requires $ kg of oxygen and produces
A:4 kg of carbon monoxide gas
B:-3 kg of carbon monoxide gas
C:-4 kg of carbon monoxide gas