| Subject Science & Technology | |||
|---|---|---|---|
| 301. ‘Green house effect’ means - | |||
| Prevention from ultraviolet radiation by the ozone layer | |||
| Pollution in house in tropical region | |||
| Trapping of solar energy due to atmospheric carbon dioxide | |||
| None of these | |||
| Ans. | |||
| 302. BIOS is a - | |||
| Hardware | |||
| Software | |||
| Firmware | |||
| Humanware | |||
| Ans. | |||
| 303. Which one is utility Software? | |||
| MS Word | |||
| MS Excel | |||
| McAfee | |||
| Windows 98 | |||
| Ans. | |||
| 304. Bolometer is used to measure - | |||
| Frequency | |||
| Temperature | |||
| Velocity | |||
| Wavelength | |||
| Ans. | |||
| 305. সবচেয়ে কঠিন পদার্থ - | |||
| সোনা | |||
| রুপা | |||
| হীরা | |||
| প্লাটিনাম | |||
| Ans. | |||
| 306. ইলেকট্রন কে আবিস্কার করেন? | |||
| রাদারফোর্ড | |||
| নীলস বোর | |||
| থমসন | |||
| নিউটন | |||
| Ans. | |||
| 307. মানবদেহে অক্সিজেন পরিবহন হয় কোন অঙ্গের মাধ্যমে? | |||
| মস্তিষ্ক | |||
| রক্ত | |||
| হৃৎপিন্ড | |||
| ফুসফুস | |||
| Ans. | |||
| 308. ফল কৃত্রিমভাবে পাকানোর জন্য ব্যবহৃত গ্যাস - | |||
| এ্যাসিটিলিন | |||
| ইথার | |||
| ইথাইলিন | |||
| এ্যাসোনিয়া | |||
| Ans. | |||
| 309. Who developed the small pox vaccination? | |||
| Eduard Jenner | |||
| Alexander Fleming | |||
| Albert Einstein | |||
| Isaac Newton | |||
| None of these | |||
| Ans. | |||
| 310. Greenhouse generally remains – from it external environment. | |||
| cool | |||
| bright | |||
| green | |||
| warm | |||
| Ans. | |||
| 311. The process of fragmentations of DNA its Genetic Engineering is known as - | |||
| Electro-synthesis | |||
| Electrophoresis | |||
| Electro-analysis | |||
| Electrolysis Palestine | |||
| Ans. | |||
| 312. Lunar eclipse occurs on - | |||
| A new moon day | |||
| A full moon day | |||
| A half moon day | |||
| both a & b | |||
| Ans. | |||
| 313. Which of the following crops helps in nitrogen fixation? | |||
| Rice | |||
| Wheat | |||
| Beans | |||
| Maize | |||
| Ans. | |||
| 314. Polythene is industrially prepared by the polymerization of - | |||
| Methane | |||
| Styrene | |||
| Acetylene | |||
| Ethylene | |||
| Ans. | |||
| 315. Which one of the following is a water soluble vitamin – | |||
| Vitamin A | |||
| Vitamin C | |||
| Vitamin D | |||
| Vitamin K | |||
| Ans. | |||
| 316. The disease ‘Diphtheria’ affects – | |||
| Lungs | |||
| Intestine | |||
| Throat | |||
| Body Joints | |||
| Ans. | |||
| 317. Which of the following is not an example of operating system? | |||
| Windows 98 | |||
| BSD Unix | |||
| Linux | |||
| Microsoft Office XP | |||
| Ans. | |||
| 318. A black hole is a body in space which does not allow any radiation to come out. This property is due to its. | |||
| very small size | |||
| very large size | |||
| very high density | |||
| very low density | |||
| Ans. | |||
| 319. Endoscopy, a technique used to explore the stomach or other inner parts of the body, is based on the phenomenon of - | |||
| total internal reflection | |||
| interference | |||
| diffraction | |||
| polarization | |||
| Ans. | |||
| 320. Under whose leadership was the Genome of Jute invented? | |||
| Maksudul Alam | |||
| Mahbubul Alam | |||
| Abed Chowdhruy | |||
| Geegor Mendel | |||
| Ans. | |||
| 321. Milk is Pasteurized in order to – | |||
| destroy micro-organism | |||
| enhance taste and flavour | |||
| increase its food value | |||
| detect adulteration | |||
| Ans. | |||
| 322. The process of fragmentation of DNA in Genetic Engineering is known as – | |||
| Electrosynthesis | |||
| Electrophoresis | |||
| Electroanalysis | |||
| Electrolysis | |||
| Ans. | |||
| 323. মানবদেহে মোট অস্থির সংখ্যা কতটি? | |||
| ২১২ টি | |||
| ২১০ টি | |||
| ২০৮ টি | |||
| ২০৬ টি | |||
| Ans. | |||
| 324. নিচের কোন্ রোগটি ভিটামিন বি-১ এর অভাবে হতে পারে? | |||
| স্কার্ভি | |||
| বেরিবেরি | |||
| বিকেটস | |||
| কোনটিই নয় | |||
| Ans. | |||
| 325. ‘Bluetooth’ নিচের কোন প্রযু্ক্তি ব্যবহার করে? | |||
| Magnetic | |||
| Optical | |||
| Laser | |||
| Radio frequency | |||
| Ans. | |||
| Total Question : | 25 |
| Total Hit : | 0 |
| Correct : | 0 |
| Wrong/Cheat : | 0 |