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Q:

The first gasoline-run car engine was developed by

 

A) Henry Ford B) Carl Benz
C) Hugh Chalmers D) Horace Elgin Dodge
 
Answer & Explanation Answer: B) Carl Benz

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Filed Under: Inventions
Exam Prep: Bank Exams

0 8131
Q:

Who among the following was the first Indian to receive the Templeton Award?

A) Baba amte B) Mother teresa
C) Dr. S. Radhakrishnan D) Vinoba bhave
 
Answer & Explanation Answer: C) Dr. S. Radhakrishnan

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Filed Under: Honours and Awards

4 8127
Q:

Sound waves cannot travel in

A) Vacuum B) Water
C) Glass D) Hydrogen gas
 
Answer & Explanation Answer: A) Vacuum

Explanation:

A Sound wave needs a medium for propogation. Hence, Sound cannot travel through a vacuum.

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

6 8126
Q:

In archery, what shape is the target

A) Squar B) Round
C) Triangular D) Rectangular
 
Answer & Explanation Answer: B) Round

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Filed Under: Sports

17 8122
Q:

Secondary storage ________

A) does not require constant power B) does not use magnetic media
C) consists of four main types of devices D) does not store information for later retrieval
 
Answer & Explanation Answer: A) does not require constant power

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Filed Under: Computer
Exam Prep: Bank Exams

18 8120
Q:

Which solution has the highest pH?

A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) B) 50.0 mL 0.0500 M sodium hydroxide, NaOH (aq)
C) 50.0 mL 0.0500 M nitric acid, HNO3 (aq) D) 50.0 mL 0.0500 M nitrous acid, HNO2 (aq)
 
Answer & Explanation Answer: A) 50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq)

Explanation:

50.0 mL 0.0500 M calcium hydroxide, Ca(OH)2 (aq) has the highest pH value.

Sodium hydroxide and Calcium hydroxide are strong bases so they completely ionize in solution. Because they ionize at the same rate, and Calcium hydroxide has the higher pH calculated, then Calcium hydroxide, in fact, has the highest pH.

Nitric acid is a strong acid, so it completely ionizes in water. Whilst nitrous acid is a weak acid. Therefore, the nitric acid solution has the LOWEST ph.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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8 8115
Q:

Which metal pollute the air of a big city?

A) Chromium B) Lead
C) Copper D) Zinc
 
Answer & Explanation Answer: B) Lead

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

12 8111
Q:

The President can dismiss a member of the council of ministers

 

A) on his own B) on the recommendation of the prime ministers
C) only under emergency conditions D) with the consent of speakers
 
Answer & Explanation Answer: B) on the recommendation of the prime ministers

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Filed Under: Indian Politics
Exam Prep: Bank Exams

1 8102