Directions How to Answer

Aptitude Test Topic: General Knowledge

General Knowledge Section consists of MCQs on World Geography, Atmosphere, Science and Literature, events, Current Affairs, Pakistan Affairs, and International Organizations.

Directions

The following are questions on Your General Knowledge. Select the correct option to represent your answer.

To give the answer click/tap the option alphabet for your answer choice. for correct answer green check and for wrong answer a red cross will appear along with a button to show explanation with or without video of the question answer.

General Knowledge: Atmosphere Practice MCQ

Question Statement:

Which gas is not produced when hydrocarbons are burnt in the internal combustion engines?

Carbon dioxide

Carbon monoxide

Hydrogen

Oxides of nitrogen

Explanation:

Correct Answer: C

Complete combustion produces H2O and CO2.
Incomplete combustion produces CO.
Oxides of nitrogen are produced around the engines at high temperatures. N2 + 2O2 + heat --> 2NO2
Hydrogen is not produced.

Question: 2 Test: 1 of 3 Next Test

Tests

You are taking Aptitude Test No. 1

Each aptitude test is comprised of 10 except the last test which might have fewer than 10 in some topics.

You are at question (MCQ) number 2 and Test Number 1 of General Knowledge: Atmosphere. To deal with General Knowledge questions, you must take lesson on the subject. In case of science and Art subjects revise your text books and in case of general aptitude topics take lessons from the topic page.

The question: Which gas is not produced when hydrocarbons are burnt in the internal combustion engines? .... with options: Carbon dioxide , Carbon monoxide , Hydrogen, Oxides of nitrogen can be solved with the concepts and understanding of General Knowledge.