Questions

Q:

A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:

A) 150 J B) 100 J
C) 50 J D) 75 J
 
Answer & Explanation Answer: A) 150 J

Explanation:
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Filed Under: Physics
Exam Prep: CAT , Bank Exams , AIEEE

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Q:

Strength of concrete increases with

A) increase in fineness of cement B) decrease in size of aggregate
C) increase in water cement ratio D) decrease in curing time
 
Answer & Explanation Answer: C) increase in water cement ratio

Explanation:

Strength of concrete increases with increase in water cement ratio as the strength of the cement is directly proportional to water cement ratio.

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Filed Under: Chemistry
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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

Reporters and city officials gathered at a Chicago railroad station one afternoon in 1953. The person they were meeting was the 1952 Nobel Peace Prize winner. A few minutes after the train came to a stop, a giant of a man - six feet four inches - with bushy hair and a large moustache stepped out from the train. Cameras flashed. City officials approached him with hands outstretched. Various people began telling him how honoured they were to meet him.

The man politely thanked them and then, looking over their heads, asked if he could be excused for a moment. He quickly walked through the crowd until he reached the side of an elderly black woman who was struggling with two large suitcases. He picked up the bags with a smile, escorted the woman to a bus. After helping her aboard, he wished her a safe journey. As he returned to the greeting party he apologized, "Sorry to have kept you waiting." Not many whites would have done what he did.

The man was Dr. Albert Schweitzer, the famous missionary doctor who had spent his life helping the poor in Africa. In response to Dr. Schweitzer's action, one member of the reception committee said with great admiration to the reporter standing next to him, "That's the first time I ever saw a sermon walking."


Dr. Albert Schweitzer was the winner of the _____ .

A) Nobel Prize in 1952 for Medicine B) Nobel Prize in 1952 for Peace
C) Nobel Prize in 1952 for Chemistry D) Nobel Prize in 1953 for Peace
 
Answer & Explanation Answer: B) Nobel Prize in 1952 for Peace

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

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Q:

Red Cross was founded by

A) J.H.Durant B) Baden Powell
C) Tygve Lie D) Frederic Passey
 
Answer & Explanation Answer: C) Tygve Lie

Explanation:
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Filed Under: World Organisations

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Q:

The most abundent metal in the Earth's crust is 

A) Calcium B) Aluminium
C) Iron D) Magnesium
 
Answer & Explanation Answer: B) Aluminium

Explanation:
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Filed Under: World Geography

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Q:

Attribution theory was designed to account for

A) how people explain others' behavior B) the process of revealing intimate aspects of ourselves to others
C) social facilitation and social loafing D) the loss of self-awareness that occurs in group situations
 
Answer & Explanation Answer: A) how people explain others' behavior

Explanation:

Attribution theory was designed to account for how people explain others' behavior. It is a theory in psychology states that the attributions people make about events and behavior can be classed as either internal or external. In an internal, or dispositional, attribution, people infer that an event or a person's behavior is due to personal factors such as traits, abilities, or feelings.

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Filed Under: General Science
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Q:

What is the relationship between Resistivity and Conductivity?

Answer

Resistivity :


Resistivity is a measure of the resistance to the flow of electrons. 


Conductivity :


Conductivity is just the inverse of resistivity, σ = 1/ρ, where σ is conductivity and ρ is resistivity.


 


Example:


Think of a pipe and water, the bigger the pipe, the easier water can flow and thus the lower the resistance. 

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

A master plan is devised for

A) Long-range goals B) Emergencies
C) Short-term goals D) Investments
 
Answer & Explanation Answer: A) Long-range goals

Explanation:

A master plan is devised for long-range goals.

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Filed Under: Indian Economy
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