Prepare for the BHEL Engineer Trainee (ET Electrical) recruitment examination with official previous years' solved question papers across Electric Circuits & Fields, Electrical Machines (Turbo-Generators, Synchronous & Induction Motors, Transformers), Power Systems (Generation, EHV Transmission, Grid Stability & Switchgear Protection), Control Systems, Power Electronics & HVDC Transmission, Electrical & Electronic Measurements, Analog & Digital Electronics, and General Engineering Aptitude.
Marking pattern: +1.00 positive, -0.25 (1/4th) negative marking (Official BHEL Engineer Trainee Computer-Based Test Scheme).
A conductor of length 0.5 m moves in a uniform magnetic field of 1.2 T at a velocity of 30 m/s. Find the induced voltage in the conductor when the direction of motion is perpendicular to the field.
If the following circuit is replaced by its Thevenin's equivalent between terminals 'a' and 'b', what will be the $R_{\text{TH}}$?
Which of the following is the main disadvantage of Hopkinson's test for finding efficiency of a DC shunt motor?
A system is given by $G(s) = \frac{K}{s(s+2)(s+4)}$ and $H(s) = 1$. What should be the value of $K$ for the system to have stability?
In order to reduce voltage drops in various sections, distant points of the distributor are joined through a conductor called:
Consider the circuit shown below:
What should be the value of $R_L$ in the above circuit for maximum power transfer?
A point charge of 30 nC is located at the origin, while plane $y = 3$ carries charge $10\text{ nC/m}^2$. Find flux density at $(0, 4, 3)$.
Which of the following is NOT an advantage of Gauss-Seidel method over Newton-Raphson method?
What is the maximum value of torque angle in electrical degrees for a synchronous motor?
What should be the hysteresis loops of the materials used in electric generators, motors and transformers so that hysteresis losses are minimal?
Three statements are given followed by two conclusions. Consider the statements and conclusions even if they vary from commonly known facts and decide which of the conclusions follow from the given statements.
Statements:
Some birds are cats.
No dog is a cat.
All dogs are birds.
Conclusions:
I. Some birds are dogs.
II. Some cats are birds.
Three of the four letter cluster-pairs are similar in some way and one is different. Select the odd term out.
If all the letters of the word 'TOUGH' are arranged in alphabetical order, which will be the middle most letter?
In a code language, 'AMRISH' is coded as '136', 'DEVIKA' is coded as '156', how will 'MARY' be coded as in the same code language?
Find the wrong term in the given number series.
75, 79, 92, 104, 129
Find the approximate value of the given expression.
$$1.99 \times 2.02 + 3.03 - 6.03 \div 2.01$$
A letter, number and symbol arranged machine when given an input of letters and numbers rearranges them following a particular pattern in every step. Following is an illustration of output, the final step, when given an input:
Input: AY8T4@
Step 1: 8 4 AYT@
Step 2: 8 4 AYT@
Step 3: 4 8 ATY@ (Output)
Which will be the output for the below input?
TSJ13P9*
In a code language, 'PIYUSH' is coded as '294', 'MOHAN' is coded as '153', how will 'RAVISH' be coded as in the same code language?
Six employees P, Q, R, S, T and U live in a same building but on different floors of a six floored building. Ground floor is marked as floor 1, floor above it as floor 2 and so on up to floor 6. R lives 2 floors above the floor of U and 2 floors below the floor of P. Q lives 2 floors below the floor of T and 2 floors above the floor of S. R lives on any floor below the floor of Q. Who lives on 4th floor?
Select the term which is related to the 3rd term in the same way as the 2nd term is related to the 1st term.
BJ : YQ :: HP : ?
Which term will replace the question mark (?) in the given alpha-numeric series?
93K, 118E, ?, 168S, 193M
Consider the given figure and answer the following question. Triangle indicates girls, rectangle indicates dancers, circle indicates players. Numbers written in different shapes indicate number of persons in that category.
How many girls are either dancers or players but not both?
If each even digit of the number 725826 is replaced with its respective successor and each odd digit is replaced with its predecessor, what will be the total of all digits in the new number?
Three statements are given followed by two conclusions. Consider the statements and conclusions even if they vary from commonly known facts and decide which of the conclusions follow from the given statements.
Statements:
Some students are players.
Some players are dancers.
No dancer is a student.
Conclusions:
I. Some dancers are players.
II. No student is a dancer.
Two statements are given followed by two conclusions. Decide which of the conclusions logically follows from the given statements.
Statements:
P and Q is a couple. M and N is a couple.
N is the daughter-in-law of Q.
Conclusions:
I. P is the father of M.
II. Q is the father-in-law of N.