Pick the
correct example of fire-tube boiler.
Which of the
following does NOT require flue gas for operation?
Steam jet draught is used in ________ boiler(s).
Which of the following is NOT an accessory of a boiler?
Fusible plug is used in a boiler to/for :
A closed
container is termed as boiler if its volume exceeds ________ litres.
The most appropriate example of ________ boiler is Cornish boiler.
A closed
vessel in which steam is produced from water by combustion for fuel is called a
:
Usually,
boiler rating is defined in terms of ________
Which of the
following is NOT a factor for selecting a type of a boiler for a particular
application?
Which of the
following is a single tube boiler?
Which of the following is a boiler accessory?
A boiler
produces 1000 kg/hr steam with rise in enthalpy of steam of 2500 kJ/kg. The calorific
value of coal used is 30000 kJ/kg and its consumption is 100 kg/hr. What would
be the boiler efficiency?
एक बॉयलर 1000 kg/hr भाप पैदा करता है, जिसकी भाप की एन्थैल्पी में 2500 kJ/kg की वृद्धि होती है। उपयोग किए गए कोयले का कैलोरी मान 30000 kJ/kg है और इसकी खपत 100 kg/hr है। बॉयलर की दक्षता क्या होगी?
Which of the
following is NOT a type of boiler mounting?
In a boiler,
the device in which the waste heat of flue gases is utilised for heating feed
water is called a/an:
बॉयलर में, वह उपकरण जिसमें फ़्लू गैसों की अपशिष्ट ऊष्मा का उपयोग फीड जल को गर्म करने के लिए किया जाता है, उसे क्या कहा जाता है:
Which of the
following is a type of fire-tube boiler?
Which of the following is a type of high-pressure boiler?
In a LaMont boiler, the mass flow rate of water through the boiler circulation pump, compared to the rate of evaporation of water, is typically :
Which of the
following fittings used to extinguish the boiler furnace fire in case the water
level falls below the safe level?
The furnace
is situated outside the boiler shell in case of a :
Biggest loss in the boiler is:
Which boiler has a relatively large storage of steam and water?
In a
locomotive boiler, the draught is produced by
The pressure of steam produced in a supercritical boiler is in the range
of :
A device used
to put off fire in the furnace of the boiler when the level of the water in the
boiler falls to an unsafe limit is called:
When the pressure inside the boiler drum exceeds the desired level, then which of the following devices blows off the excess steam from the boiler?
Which of the
following devices is used to preheat the feed water before being supplied to
the boiler?
The transport
of heat by natural circulation of water does not take placed in which boiler?
A boiler produces 9 kg steam/kg of coal burnt, which hasthe calorificvalue 27 MJ/kg. The enthalpy of feed water and steam at the exit are 300 kJ/kg and 3000 kJ/kg respectively. Its thermal efficiency is
The blow-off cock in a boiler refers to the :
In a Lancashire boiler, the heat is transferred to the water by :
Which statement
from below is true about water tube boilers?
Identifytheincorrectstatement,
from the following options in an injector in a boiler ________ .
Identify the
incorrect statement, from the following options in the La Mont high pressure
boiler ________ .
Conventionally,
in a Babcock-Wilcoxboiler, the circulationofwaterbetweenthedrumandthe
water-tubes is :
Identify the
incorrect statement, fromthe following options :
The
measurement of temperature, flow rate and
Which of the following is not true with regard to an economizer in a
steam boiler?
The
equivalent evaporation of a boiler is a measure to compare
Pick up the
correct statement as regards to Cornish boiler and Lancashire boiler
The fusible
plug in small boilers is located
Equivalent
evaporation is the amount of water evaporated in a boiler from and at
The evaporation of 15.653 kg of water per hour from and at 100 0C is called
Locomotive boiler is of the following type
The number of
drums in Benson steam generator is
Which of the following boilers is best suited to meet fluctuating
demands?
The diameter (in cm) of Cornish boiler is of the order of
Cochran
boiler is a
Heat is
transferred by conduction, convection and radiation in ________ .
The heat loss
in a boiler takes place in the form of ________ .
What is the
primary function of a steam trap in a boiler?