Prepare for ONGC Assistant Technician (Electrical) and Junior Technician recruitment examination with official previous years' solved question papers across Basic Electrical Principles & Ohm's/Kirchhoff's Laws, Magnetism & Electromagnetic Induction, AC Fundamentals & Polyphase Circuits, Transformers & Substation Maintenance, DC Machines & 3-Phase Induction Motors, Synchronous Alternators & Rig Power Generation, Motor Control Centres (MCC) & Switchgear Protection, Flameproof (Ex-d) Equipment for Oil & Gas Hazardous Areas, Underground Power Cabling, Electrical Measuring Instruments, Industrial Earthing Systems, and Workshop Electrical Safety Standards.
Marking pattern: +1.00 positive, 0.00 negative marking (Official ONGC CBT Scheme — No Negative Marking; 100 Questions, 100 Marks).
Select the figure from among the given options that can replace the question mark (?) in the following series.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements.
Statements:
Conclusions:
Select the option that will improve the underlined part of the given sentence. In case no improvement is needed, select 'No improvement'.
He is one of the most substantial leaders of our district.
Which of the following is NOT a crypto currency-related provision listed in the 2022 Indian budget?
Which of the following is NOT a feature of the Indian Constitution?
The area of a triangular park having sides $100\text{ m}$, $170\text{ m}$ and $210\text{ m}$ is equal to $\frac{21}{22}$ of the area of a circular field. What is the perimeter (in m) of the circular field? (Take $\pi = \frac{22}{7}$)
In a certain code language, 'CHARITY' is written as 'ZUBKTID' and 'HANDOUT' is written as 'UBOYNHI'. How will 'BENEFIT' be written in that language?
Which of the following cell organelles does NOT contain DNA?
The All-India Muslim League (popularised as the Muslim League) was a political party established in British India in which year?
Refer to the following letter series and answer the question:
(Left) B U K E F M R E S I C X Z O W A Q D M H G U L (Right)
How many letters are there in the English alphabet between the letter that is sixth from the right end and the letter which is fifth from the left end of the given series?
In a school, each classroom has a number of students equal to half the total number of classrooms. The total number of students is 2,312. If each student contributes ₹80 for donation, what is the total amount (in ₹) collected from each classroom?
Select the option that can be used as a one-word substitute for the given group of words.
A group of worshippers
The price of an item increases by $20\%$ and then increases by $25\%$. The resulting price decreases by $42\%$. What is the net percentage increase / decrease in the original price of the item?
The cost price of an article is ₹320. A trader gains $15\%$ by selling the article at a discount of $8\%$ on its marked price. If he sells it at a discount of $5\%$ on the marked price, what will be his profit percentage?
Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph.
A. Posted to Peshawar, 1300 miles away, Roberts proceeded up the Ganges to Benaras in a barge.
B. In 1852, when Frederick Roberts arrived at Dum Dum as a young army officer, no railway existed in India.
C. For the last 600 miles he was carried in a dooly, by eight men divided into teams of four bearers.
D. Then he travelled over land to Meerut by horse.
If '+' means 'subtraction', '-' means 'multiplication', '×' means 'division', and '÷' means 'addition', then what is the value of the following expression?
$$15 - 3 \div 4 + 24 \times 6 = ?$$
Who among the following led the Revolt of 1857, which began when Indian soldiers rebelled against British officers over the violation of their religious sentiments?
A car starts from X for Y and travels at $20\text{ km/h}$. After 75 minutes, another car starts from X and travels at $40\text{ km/h}$ and reaches Y 1 hour before the first car. What is the distance (in $\text{km}$) between X and Y?
Comprehension:
Read the given passage and answer the questions that follow.
We heard a whirring of wings and a tiny bird zipped past us, spun around and hovered, his wings beating so rapidly that I could hardly see them.
"It's a hummingbird!" Russel said.
"How do you know?" He could see some light and colours, blurred images directly in front of him and that was all.
"I can hear it!"
The bird zoomed around his head, put on its brakes in front of his face and hung there as if suspended by an invisible thread.
Question:
What impairment does Russel suffer from?
Comprehension:
Read the given passage and answer the questions that follow.
We heard a whirring of wings and a tiny bird zipped past us, spun around and hovered, his wings beating so rapidly that I could hardly see them.
"It's a hummingbird!" Russel said.
"How do you know?" He could see some light and colours, blurred images directly in front of him and that was all.
"I can hear it!"
The bird zoomed around his head, put on its brakes in front of his face and hung there as if suspended by an invisible thread.
Question:
Select the option that defines what kind of passage it is.
Cumulatively compound DC motor's speed can be controlled through:
In engineering drawing, a line which is divided into suitable number of equal parts or units, the first part of which is further sub-divided into small parts or sub-units of main unit is known as:
To find out information about heating, voltage regulation and efficiency of a transformer, which test is carried out?
The power factor of a rotary converter is:
In DC machine windings, the number of armature conductors or elements separated by a coil on the commutator end is called: