Related Questions

Very high pressure boilers are usually __________ boilers.
A Fire tube
B Water tube
C Waste heat
D Natural circulation
The function of injector used in small steam plants is to
A Create vacuum in furnace
B Create vacuum at turbine exhaust
C Pump feed water
D Dose chemicals in feed water
In a Diesel engine, the function of a fuel injector is to
A Mix the fuel and air
B Ignite the air-fuel mixture
C Provide flame front for ignition
D Spray atomized fuel in the cylinder
Duplex feed pumps are used in small steam boilers. These operate on the principle of
A Centrifugal pump
B Axial flow pump
C Gear pump
D Reciprocating pump
In order to compare the capacity of boilers, the feed water temperature and working pressure are taken as
A 50°C and normal atmospheric pressure
B 50°C and 1.1 bar pressure
C 100°C and normal atmospheric pressure
D 100°C and 1.1 bar pressure
A fusible plug is fitted in small boilers in order to
A Avoid excessive build up of pressure
B Avoid explosion
C Extinguish fire if water level in the boiler falls below alarming limit
D Control steam dome
The fusible plug in small boilers is located
A In the drum
B In the fire tubes
C Above steam dome
D Over the combustion chamber
The injector nozzle of a compression ignition engine is required to inject fuel at a sufficiently high pressure in order to
A Inject fuel in a chamber of high pressure at the end of compression stroke
B Inject fuel at a high velocity to facilitate atomization
C Ensure that penetration is not high
D All of the above
The capacity of computer memory is increasing exponentially . At the same time increased capacity is becoming available at cheaper rate. Two years ago 1GB RAM cost TK. 5,000. Now 4GB Ram is available at the same price. If this trend continues what capacity of RAM will you get for TK. 5,000 after 3 years time ?
A 32GB
B 80GB
C 60.72GB
D 76GB
Ahmad has containers of two different sizes. The total capacity of 16 containers of one size is x gallons,and the total capacity of 8 containers of the other size is also x gallons , and x> 0. In terms of x , what is the capacity, in gallons, of each of the larger containers?
A 4x
B 2x
C x/2
D x/8

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