A:-Have high calorific value
B:-The combustion rate can be easily controlled
C:-Have less Thermal efficiency
D:-Easy to ignite and easy to shutting of operation
Correct Answer:- Option-C
Question88:-Coal gas is obtained
A:-By partial combustion of coal
-By carbonization process of coal
C:-By passing steam over coal
D:-From the by products of blast furnace
Correct Answer:- Option-B
Question89:-To discharge mud and other sediments the boiler is provided with
A:-Steam step valve
B:-Fusible club
C:-Blow off cock
D:-Feed check valve
Correct Answer:- Option-C
Question90:-During super heating of steam
A:-the pressure remains constant
B:-volume remains constant
C:-temperature and volume remains constant
D:-the pressure and volume remains constant
Correct Answer:- Option-A
Question91:-The steam nozzle coverts
A:-Pressure energy of steam to heat energy
-Heat energy of steam to kinetic energy
C:-Heat energy of steam to potential energy
D:-Pressure energy of steam to potential energy
Correct Answer:- Option-B
Question92:-Which of the following part prevents the boiler against excessive pressure?
A:-Pressure gauge
B:-Steam stop valve
C:-Safety valve
D:-Fusible plug
Correct Answer:- Option-C
Question93:-The instrument used to monitor the temperature of liquids and gases in storage or flowing pipe and ducts is
A:-Bomb Calorimeter
B:-Thermometer
C:-Kelvin meter
D:-Thermocouple
Correct Answer:- Option-D
Question94:-The pressure exerted by the envelope of air surrounding the earth surface is called
A:-Absolute pressure
B:-Atmospheric pressure
C:-Gauge pressure
D:-Vacuum pressure
Correct Answer:- Option-B
Question95:-Mercury in a glass thermometer works on the principle of
A:-Thermo couple effect
B:-Thermo electric effect
C:-Bourdon tube principle
D:-Expansion of fluid
Correct Answer:- Option-D
Question96:-The performance of boiler is measured in terms of
A:-Evaporative capacity
B:-Heating capacity
C:-Mass of steam generated
D:-Mass of fuel burned
Correct Answer:- Option-A