Master official APPSC Assistant Executive Engineer previous years' solved question papers with comprehensive step-by-step derivations across Electric Circuits & Network Theory, Electromagnetic Fields, Electrical Machines, Power Systems (Transmission, Distribution & Protection), Control Systems, Electrical & Electronic Measurements, Power Electronics & Drives, and Analog & Digital Electronics.
Marking pattern: +1.00 positive, -0.33 negative marking (Official APPSC 1/3rd Negative Marking Scheme; 150 Questions, 150 Marks).
The rating of a circuit breaker is generally determined on the basis of
Circuit breakers usually operate during
Air blast circuit breaker is most suitable for
Which of the following circuit breakers is preferred for $400\text{ kV}$ transmission line protection?
In a circuit breaker, arc will restrike if
Arc in a circuit behaves as
The time interval from instant of contact separation to time of arc extinction is called
In which of the following, a circuit breaker must be equipped for remote operation?
Which of the following circuit breakers has high reliability and minimum maintenance?
Air used in air blast circuit breaker
The area under the load curve gives
Which plant can never have 100 percent load factor?
In order to have lower cost of electrical generation
Plant capacity factor and load factor become identical when
If a plant has low utilization factor, it indicates that
In underground cables, the electrostatic stress is
The insulation resistance of the cable decreases with
The main utility of intersheaths in cables is/are
In the cables, the location of fault is usually found out by comparing
In capacitance grading of cables, we use
The advantage of cables over transmission lines
Paper used as insulating materials in cables is generally impregnated with oily compounds, because
The capacitance between any two conductors of a 3-core cable (with sheath earthed) is $4\;\mu\text{F}$. The capacitance per phase will be
Void formation in the dielectric material of the underground cable may be controlled by
Voltage gradient in a cable is highest at the