Question 41 : A compound steam engine in which piston rods of high pressure and low pressure cylinders � are attached to two different cranks set at 180° to each other, is called
1. None of these
2. Tandem type compound engine
3. Woolf type compound engine
4. receiver type compound engine
View Answer   Discuss with Members

Question 42 : The diameter of a cylindrical shell of a Scotch marine boiler varies from
1. 1.5 to 2 m
2. 3.5 to 4.5 m
3. 2.5 to 3.5 m
4. none of these
View Answer   Discuss with Members

Question 43 : The missing quantity per stroke is equal to
1. cylinder feed - indicated mass of steam
2. cylinder feed + indicated mass of steam
3. mass of cushion steam + indicated mass of steam
4. mass of cushion steam + cylinder feed
View Answer   Discuss with Members

Question 44 : The theoretical indicator diagram of a simple steam engine is based upon the assumption that
1. there is no pressure drop due to condensation
2. steam is admitted at boiler pressure and exhausted at condenser pressure
3. the expansion (or compression) of the steam is hyperbolic
4. all of the above
View Answer   Discuss with Members

Question 45 : Lancashire boiler is
1. internally fired boiler
2. stationary fire tube boiler
3. horizontal boiler
4. all of these
View Answer   Discuss with Members

Question 46 : Lancashire boiler has __________ internal flue tubes.
1. 2
2. 1
3. 4
4. 3
View Answer   Discuss with Members

Question 47 : An economiser is installed in a boiler primarily to
1. superheat the steam
2. all of these
3. reduce fuel consumption
4. increase steam pressure
View Answer   Discuss with Members

Question 48 : A closed vessel made of steel and used for the generation of steam is called a
1. steam injector
2. steam condenser
3. steam boiler
4. steam turbine
View Answer   Discuss with Members

Question 49 : Locomotive boiler is a
1. single tube, vertical, externally fired and stationary boiler
2. multitubular, horizontal, internally fired and mobile boiler
3. single tube, horizontal, internally fired and stationary boiler
4. multitubular, horizontal, externally fired and stationary boiler
View Answer   Discuss with Members

Question 50 : The equivalent evaporation is defined as
1. the amount of water evaporated or steam produced in kg per kg of fuel burnt
2. the ratio of heat actually used in producing the steam to the heat liberated in the furnace
3. the evaporation of 15.653 kg of water per hour from and at 100° C
4. the amount of water evaporated from and at 100° C into dry and saturated steam
View Answer   Discuss with Members