SSC JE Mechanical Engineering 1st March 2017 Shift-2


For the following questions answer them individually

Question 181

Which of the following is, "A device used to connect two separate Ethernet networks into one extended Ethernet."?

Question 182

________________ is a language for the specification of procedures for the retrieval (and sometimes also modification) of information from a database.

Question 183

Read the pairs given below -
Name : Formula
1. Acetone : $$CH_2OHCHOHCH_2OH$$
2. Ethanal : $$CH_3CHO$$
3. Formaldehyde : $$HCHO$$
4. Glycerol : $$CH_3COCH_3$$

Which of the above pairs are correctly matched?

Question 184

What is the IUPAC name of tert-Butyl bromide?

Question 185

Francium is highly radioactive; its longest-lived isotope223Fr has a half-life of only _____________.

Question 186

Which of the following elements has the highest atomic number?

Question 187

Which of the following statements is true?

Question 188

_____ is the rigid top layer of the earth.

Question 189

While testing pollution in water a high coliform count indicates high levels of ______.

Question 190

Which of the following gases present in the earth's atmosphere absorbs ultraviolet radiation emitted from the sun?

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