General Knowledge Questions

Q:

What type of simple machine is an axe?

A) Lever B) Wedge
C) Both A & B D) The screw
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The simple machine Axe is made up of both the lever arm and a wedge.

                              what_type_of_simple_machine_is_an_axe1536562753.png image

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Who among the following received the Nobel Prize Twice in different subjects

A) Madam Curie B) Frederic Sanger
C) Pierre Curie D) John Bardeen
 
Answer & Explanation Answer: A) Madam Curie

Explanation:
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Filed Under: Honours and Awards

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Q:

What is the oxidation number of carbon in NaHCO3?

A) -4 B) -3
C) +4 D) +2
 
Answer & Explanation Answer: C) +4

Explanation:

The given compound is NaHCO3 Sodium bicarbonate which is commonly known as Baking soda.

Oxidation numbers are the charges on ions. When a neutral atom loses electrons it becomes positively charged. When a neutral atom gains electrons it becomes negatively charged.

 

Here the C represents the oxidation state of carbon in this compound. Compounds are electrically neutral, which is why we set the sum of the oxidation states equal to zero.

Sodium has a +1 oxidation state. Hydrogen has a +1 oxidation state. Oxygen has a -2 oxidation state. There are three oxygen atoms, which means the total oxidation state provided by both oxygen ions is -6. Adding up these oxidation states we get:

1 + 1 + (-6) + C = 0

-4 + C = 0

=> C = 4


This means the oxidation state of carbon in this compound is +4.

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Filed Under: Chemistry
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1 6259
Q:

Who is the first Indian to take a hat trick in an international test ?

A) Jasu Patel B) Kapil Dev
C) Harbajan Singh D) B. S. Chandra Sekhar
 
Answer & Explanation Answer: C) Harbajan Singh

Explanation:
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Filed Under: Sports
Exam Prep: Bank Exams , CAT
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Q:

The weight of the brain in the total weight of the body is about

A) 2% B) 3%
C) 4% D) 5%
 
Answer & Explanation Answer: A) 2%

Explanation:
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Filed Under: Biology

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Q:

In budget 2017-18, the fund allocation for Deen Dayal Upadhyay Gram Jyoti Yojana Scheme ?

A) Rs. 6815 Crores B) Rs. 5550 Crores
C) Rs. 4814 Crores D) Rs. 2115 Crores
 
Answer & Explanation Answer: C) Rs. 4814 Crores

Explanation:
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Filed Under: Indian Economy
Exam Prep: Bank Exams , CAT
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13 6254
Q:

To exit the PowerPoint application, you should

A) Double click the application control menu icon B) Click the application minimize button
C) Double click the document control menu icon D) Click the document close button
 
Answer & Explanation Answer: A) Double click the application control menu icon

Explanation:

To exit the PowerPoint application, you should Double click the application control menu icon or you can go to file menu and click exit button or you can close the window button.

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Q:

Which of the following active volcanoes is known as ' the  light house of the Mediterranean Sea'

A) Volcano B) Stromboli
C) Veoavius D) Ema
 
Answer & Explanation Answer: B) Stromboli

Explanation:
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Filed Under: World Geography

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