481BPSC1995General ScienceEnglish
Electricity consumption bill is based on the measurement of 1. Watt 2. Voltage 3. Ohm 4. Ampere Select your answer of the following codes.
Show answerAnswer & explanation
Correct option: A — Only 1
Free · past papers · answers included
General Science MCQ practice free online · page 49
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
No sign-up10 per pageAnswers & explanations
- 482UPSC1999General ScienceEnglish
Consider the following statements regarding a motor car battery. 1. The voltage is usually 12V. 2. Electrolyte used is hydrochloric acid. 3. Electrodes are lead and copper. 4. Capacity is expressed in ampere-hour. Which of the above statements are correct?
Show answerAnswer & explanation
Correct option: D — 1 and 4
- 483UKPSC2002General ScienceEnglish
Consider the following statements. Assertion (A): Lightning conductors prevent buildings from damages in the event of lightning strike. Reason (R): The electric charge conduct to ground through the wire, instead of passing through the structure. Select the correct answer using the codes given below.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
- 484UPSC1998General ScienceEnglish
Assertion (A): The temperature of a metal wire rises when an electric current is passed through it. Reason (R): Collision of metal atoms with each other releases heat energy.
Show answerAnswer & explanation
Correct option: C — (A) is true, but (R) is false
- 485RPSC2013General ScienceEnglish
Assertion (A): Light Emitting Diode (LED) lamps offer longer service life as compared to Compact Fluorescent Lamps (CFL). Reason (R): Light Emitting Diodes (LED) lamps are more energy efficient as compared to the Compact Fluorescent Lamps (CFL). Select the correct answer using the codes given below.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
- 486UPSC2011General ScienceEnglish
What is the difference between a CFL and an LED Lamp? 1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semiconductor material. 2. The average life span of a CFL is much longer than of an LED lamp. 3. A CFL is less energy efficient as compared to an LED lamp. Which of the statements given above is/are correct?
Show answerAnswer & explanation
Correct option: C — 1 and 3
- 487UPSC1996General ScienceEnglish
Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R). Assertion (A): Transformer is useful for stepping up or stepping down voltages. Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?
Show answerAnswer & explanation
Correct option: C — (A) is true, but (R) is false
- 488RPSC2013General ScienceEnglish
Some pairs of devices and associated energy changes are given below. 1. Electric generator - Mechanical to electrical 2. Electric motor - Electrical to mechanical 3. Diesel engine - Light to electrical 4. Solar cell - Chemical to mechanical Which of the above pair/s is/are correctly matched?
Show answerAnswer & explanation
Correct option: A — 1 and 2
- 489PPSC2017General ScienceEnglish
Assertion (A): In India, electricity distribution companies calculate the consumption of electricity in kWh. Reason (R): Electrical system in India works at a frequency of 60 Hz.
Show answerAnswer & explanation
Correct option: C — (A) is true, but (R) is false
- 490TNPSC2019General ScienceEnglish
The highest temperature attained by a super conductor is
Show answerAnswer & explanation
Correct option: B — 133 K
General Science practice — common questions
Page 49 of this set has 10 questions on it.
Are these General Science questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
Where do these General Science MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".