RRB(Railway) Practice Question and Answer
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Q: The image formed by a plane mirror is… 2935 25d1f2ce1c068c021a404955e
5d1f2ce1c068c021a404955e- 1Realtrue
- 2Virtualfalse
- 3Diminishedfalse
- 4None of thesefalse
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Answer : 1. "Real "
Q: The quality of sound produced by an instrument depends on these 2340 15d1f2b24c068c021a4049554
5d1f2b24c068c021a4049554- 1Frequencyfalse
- 2intensityfalse
- 3Number of overtonestrue
- 4None of thesefalse
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Answer : 3. "Number of overtones"
Q: If the mass of the pendulum is doubled, the time period 1509 15d1f2a3fc068c021a404954f
5d1f2a3fc068c021a404954f- 1Becomes doublefalse
- 2Becomes halffalse
- 3Becomes four timefalse
- 4remains sametrue
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Answer : 4. "remains same"
Q: Which of the following substance has greatest specific heat? 1333 15d1f2648c068c021a40493b2
5d1f2648c068c021a40493b2- 1Ironfalse
- 2Watertrue
- 3Copperfalse
- 4Mercuryfalse
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Answer : 2. "Water"
Q: The Absolute zero on Celsius scale is 1481 15d1f259e9e6ce62e3f20436b
5d1f259e9e6ce62e3f20436b- 1-200ºCfalse
- 2-273.15ºCtrue
- 3-373.15ºCfalse
- 4None of thesefalse
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Answer : 2. "-273.15ºC"
Q: The most suitable unit for expressing nuclear radius is; 1764 15d1f24b59e6ce62e3f204308
5d1f24b59e6ce62e3f204308- 1Micronfalse
- 2Nanometrefalse
- 3Fermitrue
- 4Angstromfalse
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Answer : 3. "Fermi"
Q: What is the SI unit of pressure? 1758 15d1f238bc068c021a40493ac
5d1f238bc068c021a40493ac- 1Pascaltrue
- 2Dynefalse
- 3Newtonfalse
- 4Julefalse
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Answer : 1. "Pascal"
Q: “Parsec” is the unit measurement of 2712 25d1f2222c068c021a40493a7
5d1f2222c068c021a40493a7- 1Density of starsfalse
- 2Astronomical distancetrue
- 3Brightness of heavenly bodiesfalse
- 4Orbital velocity of giant starsfalse
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Answer : 2. "Astronomical distance"
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