Official previous years' question bank with solutions for DC Generators & Motors, AC 3-Phase Induction Motors, Transformers, Armature Winding, Industrial Wiring, Battery Maintenance, and Earthing Practices.
Marking pattern: +1.00 positive, -0.25 negative (Official BHEL Artisan Pattern).
Which of the following is typically NOT considered a transistor specification or rating?
Which type of switch is used in tunnel wiring so that forward lamps illuminate and rear lamps turn off as a person moves forward?
Why must the controller in the armature resistance control method be rated for continuous current?
In conduit installation, what is the purpose of using PVC solvent cement?
Which setting on a multimeter is used to check the continuity of a wire?
Which of the following functions is the CPU of a PLC responsible for?
Which material is commonly used for the magnetic core of a transformer?
Which of the following is NOT a typical application of grinding machines?
Why is Watt-Hour efficiency always less than Ampere-Hour efficiency?
If a wire is undersized for a given load, then:
What safety precaution must be taken when working with switch panels and control gear?
In pipe earthing installations, which material is most commonly used for the pipe?
Which of the following is an example of an indicating type electrical measuring instrument?
Which of the following statements accurately describes the relationship between an electric current and the magnetic field it produces?
(i) A current-carrying conductor produces a magnetic field that is inversely proportional to the magnitude of the current.
(ii) The magnetic field lines produced by a straight current-carrying wire form concentric circles around the wire, and their direction is given by the Right-Hand Thumb Rule (for conventional current).
(iii) The strength of the magnetic field inside a long solenoid does not depend on the number of turns per unit length.
What is the full form of an ICTP switch used in large domestic installations?
Which symbol is commonly used to represent an earth connection in a wiring diagram?
A two-way switch is used when:
One hectolitre is equal to how many litres?
Find the value of $(2916)^{1/2}$.
Find the Least Common Multiple (LCM) of the numbers 84, 92, and 76.
500 N is equal to _____ kN.
To which device does the block diagram shown in the following figure relate?
Which of the following systems of units are considered metric systems?
What will be the value of side AB (in cm) of a right-angled triangle having hypotenuse AC = 10 cm and base BC = 5 cm?
What is the FPS unit of density?