30 Questions
What is a key design consideration for the layout of switchgear?
Isolation of sections without affecting service
Which type of switchgear encloses all conductors and insulators in an earthed metal case?
Metal clad switchgear
Why are reactors used in switchgear design?
To reduce the risks of failure
In which type of switchgear does a movable truck carry the circuit breaker and isolator contacts?
Truck switchgear
What is a common advantage of metal-clad switchgear?
Enclosure of live parts in metal ensuring operator safety
What must be adequately arranged in switchgear to ensure safety?
Fire protection
What is a key function of instruments in a power plant, based on the text?
Assist in making performance calculations
Which type of instruments enable supervision of a plant economically, according to the text?
Integrating instruments
What is a consequence of using electronics more widely in instrumentation?
Increase in automation
Which type of instruments provide both indication and integration functions?
Pressure gauges
Which instruments are commonly used for measuring impurities in a power plant?
pH measuring instruments
How has the importance of instrumentation in power plant engineering changed over time?
Increased with the use of electronics and automation
What is the main purpose of correcting a problem in a utility as mentioned in the text?
To reduce inconvenience and disruption
Which of the following is NOT an application of an electric meter mentioned in the text?
Operating surveillance cameras
What is the key difference between earthing and grounding in a power system?
Earthing involves no physical connection to the ground
In the power industry, which term is commonly used interchangeably with 'grounding'?
Earthing
What is the main reason for earthing neutrals of industrial power systems, as per the text?
To ensure safety by connecting to zero volt potential
What role does an electric meter play in managing grid frequency as per the text?
Regulating flow of electricity
What is the function of the brake in an electromechanical watt-hour meter?
To create a counter torque
Which type of electric meter has evolved into a totally electronic (solid state) design?
Electronic Meter
How are electronic meters different from electromechanical meters?
Contain no moving mechanical parts
Which component of an electronic meter provides a digital display of energy and demand?
Large-Scale Integrated Circuits
Why are solid-state meters growing in use?
Their digital capabilities and elimination of mechanical complexity
How is the operation of an electronic meter different from an electromechanical meter?
Electronic meters have no moving mechanical parts
What is the equipment used for producing steam called?
Boiler
What is the function of the economizer in a steam power plant?
Extract heat from condensate
Where does the ash get collected after combustion in a power plant?
Ash handling unit
What is the function of a steam turbine in a power plant?
Generate power
Where does the steam go after striking the blades of the turbine?
Condenser
What is the purpose of a feed pump in a steam power plant?
Transfer feedwater to the boiler
Test your knowledge on the design principles for switchgear and metering systems. Topics include isolation of sections, accessibility for inspection and maintenance, risk reduction strategies, and fire protection measures.
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