CAT Questions

Q:

three_resistors_are_arranged_in_a_circuit_as_shown_above1559105724.PNG image

Three resistors are arranged in a circuit as shown above. The battery has an unknown but constant emf ε and a negligible internal resistance.

Now, determine the equivalent resistance of the three resistors.

A) 12 Ω B) 10 Ω
C) 16 Ω D) 15 Ω
 
Answer & Explanation Answer: A) 12 Ω

Explanation:

From the given circuit,

three_resistors_are_arranged_in_a_circuit_as_shown_above1559105964.PNG image

The resistors R1 and R2 are in parallel connection and R3 is in series with R1 & R2

The equivalent resistance of R1 and R2 is

Req = (12 × 4)/(12 + 4) = 3 Ω.

Adding R3 in series with the pair gives

R = Req + 9

R = 3 + 9

R = 12 Ω.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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2 1931
Q:

With which Digital payments firm Paytm has partnered, to launch AI-based cloud computing platform 'Paytm AI Cloud'?

A) GOOGLE B) Alibaba
C) Flipkart D) Infosys
 
Answer & Explanation Answer: B) Alibaba

Explanation:

Digital payments firm Paytm has partnered with China's Alibaba to launch AI-based cloud computing platform 'Paytm AI Cloud'.

 

The platform will offer business-centric apps to developers, startups and enterprises that need cloud-computing solutions including customer engagement and easy-to-integrate payments.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
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1 1930
Q:

The element present in all organic molecules is

A) Hydrogen B) Oxygen
C) Carbon D) None of the above
 
Answer & Explanation Answer: C) Carbon

Explanation:
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Filed Under: Chemistry
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0 1930
Q:

A card is drawn from a pack of 52 cards. What is the probability that either card is black or a king? 

A) 15/52 B) 17/26
C) 13/17 D) 15/26
 
Answer & Explanation Answer: D) 15/26

Explanation:

Number of cards in a pack of cards = 52

Number of black cards = 26

Number of king cards = 4 (2 Red, 2 Black)

 

Required, the probability that if a card is drawn either card is black or a king = 

2652 + 452 = 3052 = 1526

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Filed Under: Permutations and Combinations
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10 1930
Q:

How long is your TABC certification valid?

A) 1 year B) 2 years
C) 4 years D) 6 months
 
Answer & Explanation Answer: B) 2 years

Explanation:

TABC stands for Texas Alcoholic Beverage Commission. The Texas Alcoholic Beverage Commission regulates the sales, taxation, production, trade, and advertising of alcoholic beverages in Texas. Alcohol Seller/server Training regulated by this regulatory body is also called TABC Certification. It makes the rules the rest of us have to follow, and if you want to get a job serving alcohol in Texas, getting TABC certified is your first step.

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Filed Under: Indian Economy
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1 1930
Q:

The primary agent of contact metamorphism is

A) Temperature B) Pressure
C) Weathering D) Flowing water
 
Answer & Explanation Answer: A) Temperature

Explanation:

The primary agent of contact metamorphism is heat or temperature.

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Filed Under: Physics
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2 1929
Q:

The amount of water vapor in the air is

A) Hot air B) Humidity
C) Dew D) Foam
 
Answer & Explanation Answer: B) Humidity

Explanation:

The amount of water vapor ranges from a trace amount up to 4% of the mass of air. Water vapor exists as an invisible gas in the air.

 

The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity.

The maximum amount of water vapor that can be in the air depends on the air temperature.

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Filed Under: Physics
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4 1928
Q:

Which of these is an expressed power of congress?

A) power to punish pirates B) regulate commerce and currency
C) power to declare war D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The Constitution lists 27 expressed powers of Congress. It include power to declare war, levy taxes, regulate commerce and currency.

 


Congress's other expressed powers are wide-ranging, including:

The power to establish rules to allow foreign-born immigrants to become citizens of the United States

The power to make rules for bankruptcies

The power to punish counterfeiters

The power to set up a national post office

The power to provide for copyrights and patents to protect the work of inventors and artists

The power to organize all federal courts below the Supreme Court

The power to punish pirates

The power to hire pirates to attack foreign enemies

The power to make rules to regulate the conduct of the armed forces

The power to call out the militia to defend the country from invasions or insurrections

The power to organize and discipline the militiary

The power to govern the federal capital (Washington, DC)

The power to acquire lands from the states for use by the federal government

The power to make all Laws which shall be necessary and proper for carrying into Execution the foregoing powers.

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Filed Under: Indian Politics
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3 1928