What are the advantage of water tube boilers over fire tube boilers?
अग्नि ट्यूब बॉयलर की तुलना में जल ट्यूब बॉयलर के क्या लाभ हैं?
A. Steam at
higher pressures can be produced.
B. More
effective heat transfer.
C. Sediment deposition is more.
Which of the
following is a water tube boiler?
Which of the following are boiler mounting and not boiler accessories?
निम्नलिखित में से कौन बॉयलर माउंटिंग है और बॉयलर सहायक उपकरण नहीं है?
A. Pressure
gauge
B. Air
preheater
C. Super-heater
The valves mounted on the boilerswhich change the direction of flow of
steam by
The Benson
boiler has :
Boiler
accessories are used to ensure:
The Babcock
and wilcox boiler is considered as a
Which one of the following safety device is used to protect the boiler
when the water level falls below a minimum level?
A device used
to increase the temperature of saturated steam without raising its pressure is
called:
Which of the
following is a boiler mounting?
What salts of
calcium and magnesium cause temporary hardness of boiler feed water?
Maximum steam pressure (in bar) in a locomotive boiler is limited to -
In a boiler,
the feed check valve is used to :
Safety valve
used with locomotive boilers is operated by:
In a water-tube
boiler, the flue gas flows through the followingaccessories:
1. Super-heater
2. ID Fan
3. Air heater
4. Economizer
Which of the
following gives the correct sequence of the flue gas through these accessories?
Fusible plug
for a steam boiler is an alloy consisting of bismuth, lead and:
The steam in
boiler drum is always
Function of
blow-down cock of a boiler is
Lancashire
boiler is a
Cochran
boiler is a:
Lancashire boiler
is a:
Water tube
boilers are those in which:
Locomotive
type of boiler is :
Which of the
following helps to increase efficiency of the Rankine cycle?
Which is the
most practical fluid for the Rankine cycle?
The moisture
content of steam at the turbine exit of a steam power plant operating on the
Rankine cycle can be decreased by:
The Rankine cycle
is an ideal cycle for vapour power plants because :
In the
Rankine cycle, the fluid which enters the boiler is
Which of the
following is NOT a part of the Rankine cycle?
A power plant that uses a gas turbine followed by a steam turbine for
necessary power generation is known as a ________ cycle power plant.
Which of the
following statements is true?
Which of the
following statement is INCORRECT with respect to a reheat cycle?
Which of the
following is true for performance parameters of vapour power cycles?
Rankine cycle
efficiency is ________ than/as Carnot cycle efficiency if both work under the
same operating temperatures.
If
regeneration is used in Rankine cycle system, under ideal condition efficiency ________
Carnot cycle.
The power
developed by a turbine in a certain steam power plant is 1206 kW. The heat
supplied to the boiler is 3500 kJ/kg. The heat rejected by steam to cooling
water is 2900 kJ/kg. The feed pump work required to condensate back into the
boiler is 6 kW. What will be mass flow rate of cycle?
What is the
maximum moisture content in a steam turbine exhaust
________ is the platform in a furnace upon which fuel is burnt.
In a Rankine cycle, the work output from a turbine is a change :
________ is defined as the amount of dry saturated steam generated from
feed water at
A Rankine
cycle consists of :
For the same maximum and minimum temperatures, the Rankine cycle has :
Regenerative
heating ________ the thermal efficiency of a Rankine cycle.
Dry saturated
steam at a pressure of 8 bar enters a convergent nozzle. The index of
isentropic expansion for dry saturated steam is 1.135. For maximum mass flow
rate to occur through the nozzle, the exit pressure should be
Rankine cycle consist of :
The steam
which contains moisture or particles of water in suspension is known as
Steam which
is formed in contact with a water is known as :
Natural
drought is produced :
The ideal
cycle for which steam engine work is :
The governor in a hydropower plant :