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).
What will be the total surface area of a cylinder with diameter 9 cm and height 15 cm? (Take π = 22/7)
If you see a pair of parallel lines in a component sketch, which component is most likely being represented?
Which information is generally NOT included in an electronic layout diagram?
What will be the product of the fractions 3/4 and 5/8?
Which of the following represents the symbol of a battery?
Hameed buys a color TV for Rs 18,000 and sells it at a loss of 20%. Find the selling price of the TV.
Which of the following is the main difference between a two-point starter and a three-point starter?
The circuit diagram shown below represents:
Refer to the diagram given below and find the value of AB.
The property of a metal that permits no permanent distortion before breaking is called:
In a right-angled triangle ABC (right-angled at B), if AB = 6 cm and BC = 8 cm, find the value of side AC.
The symbol shown in the figure below represents a _____ in a wiring layout.
In a compound motor, which type of field winding provides high starting torque?
The symbol shown in the figure below represents a _____ in a wiring layout.
While connecting two single-phase transformers in parallel, which of the following conditions must be fulfilled to avoid circulating currents and unequal load sharing?
Generally, for earthing purposes, all parts of the equipment other than live parts must be at:
A symbol consisting of a circle containing the letter G and polarity signs (+ and −) indicates which of the following?
Which of the following quantities is classified as a derived quantity?
In a two-point starter, the starting resistance is connected:
What will be the total surface area of a sphere with radius 2 cm? (Take π = 3.14)
In the following number pairs, the second number is obtained by performing certain mathematical operations on the first number. Three of the following four pairs follow the same pattern and thus form a group. Select the number pair that does NOT belong to that group.
(NOTE: Operations should be performed on whole numbers without breaking down the numbers into their constituent digits.)
66 - 32
50 - 24
Five boxes Z, Y, X, S, and T are placed one above the other, but not necessarily in the same order. Z is immediately above T and immediately below S. Y is immediately above X and immediately below T. Which box is exactly between T and X?
Two sets of numbers are given below. In each set of numbers, the second number is obtained by performing certain mathematical operations on the first number. Similarly, the third number is obtained by performing operations on the second number, and so on. Which of the following options follows the same set of operations as the given question sets?
(NOTE: Operations should be performed on whole numbers without breaking down two/three-digit numbers into separate digits.)
28 - 112 - 448 - 450 ; 24 - 96 - 384 - 386
In the following number pairs, the second number is obtained by performing certain mathematical operations on the first number. Select the set in which the numbers are related in the same way as the numbers of the following sets.
(NOTE: Operations should be performed only on whole numbers without breaking down numbers into their constituent digits.)
30 - 10
45 - 15
The mean proportional between two numbers is 27. If one of the numbers is 9, find the sum of the digits of the other number.