Cut-off governing as compared to throttle governing is
Cut-off ratio is the ratio of
In a fire tube boiler, the water is contained inside the tubes which are surrounded by flames and hot gases from outside.
Locomotive boiler is a __________ boiler.
When steam after doing work in the cylinder passes into a condenser, the engine is said to be a
The draught produced by a steam jet issuing from a nozzle placed in the chimney is called
In case of non-condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the condenser pressure.
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is __________ the lowpressure cylinder.
The ratio of the actual vacuum to the ideal vacuum in a condenser is called
The average value of diagram factor lies between
In case of condensing steam engines, the pressure of steam in the cylinder during exhaust stroke is __________ the atmospheric pressure.
The rate of flow of steam is __________ in case of fire tube boilers.
The diameter of internal flue tubes of a Lancashire boiler is about __________ that of its shell.
Steam engines are called external combustion engines.
The chimney draught varies with
A compound steam engine requires a heavier flywheel than simple steam engines.
The governing of steam engines keep the engine speed constant according to the changing load conditions
Babcock and Wilcox boiler is a stationary type of water tube boiler.
A compound steam engine in which the high pressure and low pressure cylinders have common piston rod, is called
The function of a D-slide valve is to exhaust steam from the cylinder at proper moment.
The fittings mounted on the boiler for its proper and safe functioning is a
Blow off cock in a boiler is used to
The number of water level indicators in a boiler are generally __________ in number.
Locomotive boiler produces steam at a very high rate.
A closed vessel made of steel and used for the generation of steam is called a
A Cochran boiler is a horizontal multi-tubular boiler.
An economiser is used to increase the temperature of saturated steam without raising its pressure.
The mechanical draught produces more draught than natural draught.
The cylinder condensation or missing quantity may be reduced by
For the same diameter and thickness of tube, a water tube boiler has __________ heating surface as compared to fire tube boiler.
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