Q.1
##### Apart from Boy’s calorimeter, which process can be used for finding the calorific value of gases?
• a) Bomb calorimeter
• b) Heat balance calorimeter
• c) Junker’s calorimeter
• d) Heat flow calorimeter
Q.2
• a) 4
• b) 3
• c) 1
• d) 2
Q.3
• a) True
• b) False
Q.4
##### What is the use of insulating baffles in Boy’s thermometer?
• a) To deflect the gas upwards so that it can pass through the holes of the calorimeter
• b) To make the gas stable in copper tube
• c) To decrease the rate of heating
• d) To decrease the temperature of cold water which is obtained from inlet
Q.5
##### What is the basic formula for calculating GCV in Boy’s calorimeter?
• a) GCV = w(t2+t1)/V
• b) GCV = w(t2-t1)/V
• c) GCV = V(t2+t1)/w
• d) GCV = V(t2-t1)/w
Q.6
##### What is the main source of error in conducting the experiment of Boy’s calorimeter?
• a) The temperature of gas is greater than the room temperature
• b) Due to presence of moisture
• c) The mass of the gas is comparatively low
• d) Due to the rise in ambient temperature
Q.7
##### What is the basic formula for calculating NCV in Boy’s Calorimeter?
• a) NCV = GCV – (m/V)×587
• b) NCV = GCV – (V/m)×587
• c) NCV = GCV + (m/V)×587
• d) NCV = GCV + (V/m)×587
Q.8
##### Determine the gross calorific value (GCV) of a gas, having following results after using Boy’s calorimeter: Volume of the gaseous fuel burnt = 0.mweight of the water used for cooling = 30.5 kg, Weight of the steam condensed =gm, Temperature of inlet water = 26.1and Temperature of outlet water = 36.5 0C?
• a) 3100 Kcal/m3
• b) 3310 cal/gm
• c) 3410 Kcal/m3
• d) 3780 Kcal/gm
Q.9
##### Determine net calorific value of a volatile liquid fuel, having following results after using Boy’s calorimeter: Volume of the liquid fuel burnt = 0.mweight of the water used for cooling = 48.5 kg, Weight of the steam condensed =gm, Temperature of inlet water = 35.2and Temperature of outlet water = 42.6 0C?
• a) 2361.184 Kcal/m3
• b) 2013.348 Kcal/m3
• c) 2256.95 Kcal/m3
• d) 2185.679 Kcal/m3
Q.10
• a) True
• b) False