Questions

Q:

A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

A) conduction and convection only B) conduction and radiation only
C) convection and radiation only D) conduction, convection and radiation
 
Answer & Explanation Answer: D) conduction, convection and radiation

Explanation:

Part of the heat is conducted away by the metal table. Convection currents in air near the surface of the coffee are set up which accounts for some heat loss. Heat is also lost by radiation from the hot coffee to the surroundings. Most of the heat is lost by the last method.

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Filed Under: Physics

5 4063
Q:

Foam brightens like the dogwood now is an example of

A) a metaphor B) consonance
C) a simile D) alliteration
 
Answer & Explanation Answer: C) a simile

Explanation:

A simile is a figure of speech in which two different things are compared using like or as words.

 

Here in the given sentence, Foam brightens like the dogwood foam's brightness is compared to dogwood. Hence, it is a simile.

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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8 4063
Q:

When two similar sources vibrate with slightly different frequencies , a regular rise and fall occurs in the loudness of tone. This phenomenon is known as 

A) doppler effect B) beats
C) resonance D) echo
 
Answer & Explanation Answer: B) beats

Explanation:

Beats means the periodic increase and decrease in loudness heard when two notes of nearly the same frequency are sounded simultaneously.

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Filed Under: Physics

5 4061
Q:

88%of 370 +24% of 210-x =118 find x

Answer

From the given equation,


88x370/100 + 24x210/100 - 118 = x


=> x = 325.6 + 50.4 - 118


x = 258.

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Subject: Database Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

7 4058
Q:

Which half reaction correctly represents reduction?

A) Fe2+ + e- ---> Fe3+ B) Au3+ + 3e– ---> Au
C) Ag ---> Ag+ + e- D) All of the above
 
Answer & Explanation Answer: B) Au3+ + 3e– ---> Au

Explanation:

A half reaction is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams
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0 4054
Q:

Localized area of pus formation in the lungs is

A) Pulmonary embolism B) Pulmonary abscess
C) Pleurisy D) Pulmonary edema
 
Answer & Explanation Answer: B) Pulmonary abscess

Explanation:

Pulmonary abscess is a type of liquefactive necrosis of the lung tissue. 

 

 localized_area_of_pus_formation_in_the_lungs1537941339.jpg image

 

Hence, Localized area of pus formation in the lungs is Pulmonary abscess.

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

4 4054
Q:

What is the assigned code name of India first nuclear explosion at Pokran ?  

A) Operation Sakshi B) Operation Hurricane
C) Operation smiling Buddha D) Operation cross road
 
Answer & Explanation Answer: C) Operation smiling Buddha

Explanation:
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Filed Under: General Awareness

3 4053
Q:

Dr. Rabindranth Tagore received the Nobel Prize for his work

A) Evening Songs B) Morning Songs
C) Gitanjali D) Gora
 
Answer & Explanation Answer: C) Gitanjali

Explanation:
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Filed Under: Honours and Awards

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