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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Horizontal
Vertical
Inclined
Both horizontal and vertical

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Steam Boilers, Engines, Nozzles and Turbines
The water tubes in a simple vertical boiler are

Inclined
Horizontal
None of the listed here
Vertical

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Steam Boilers, Engines, Nozzles and Turbines
The actual vacuum in a condenser is equal to

Barometric pressure + actual pressure
Gauge pressure - atmospheric pressure
Barometric pressure - actual pressure
Gauge pressure + atmospheric pressure

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio (p₂/p₁) is given by

(p₂/p₁) = [2/(n + 1)] n/(n-1)
(p₂/p₁) = [(n - 1)/2] n + (1/n)
(p₂/p₁) = [2/(n - 1)] n/(n + 1)
(p₂/p₁) = [(n + 1)/2] n - (1/n)

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Steam Boilers, Engines, Nozzles and Turbines
In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine

Lancashire boiler
Babcock and Wilcox boiler
Locomotive boiler
Benson boiler

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.007 bar
0.053 bar
0.067 bar
0.06 bar

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