Questions

Q:

Of the following radiations, the most easily stopped by air

A) alpha - rays B) beta - rays
C) gamma -rays D) x - rays
 
Answer & Explanation Answer: A) alpha - rays

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

2 4791
Q:

Who is the author of the book "No Full Stops in India" ?

A) R. K. Narayan B) Mark Tully
C) C. Narayan Reddy D) Ved Mehta
 
Answer & Explanation Answer: B) Mark Tully

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Books and Authors
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

11 4791
Q:

In a vacuum, all electromagnetic waves have the same

A) Velocity B) Wavelenth
C) Frequency D) All the above
 
Answer & Explanation Answer: A) Velocity

Explanation:

When traveling in a vacuum, electronic waves from the electromagnetic spectrum all travel at the same speed. Velocity is speed with direction, so they would all travel at the same velocity, realtively speaking. But frequency and wavelength are quite different.

Report Error

View Answer Report Error Discuss

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

8 4791
Q:

Which layer 4 protocol is used for a Telnet connection?

A) UDP B) IP
C) TCP D) TCP/IP
 
Answer & Explanation Answer: C) TCP

Explanation:

Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.

Report Error

View Answer Report Error Discuss

0 4790
Q:

What is the capital of Bangladesh ?

A) Dhaka B) Chittagong
C) Khulna D) Sylhet
 
Answer & Explanation Answer: A) Dhaka

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Country Capitals

18 4790
Q:

Which of the following gases is present under pressure in soft drinks?

A) Nitrous oxide B) Oxygen
C) Nitrogen D) Carbon dioxide
 
Answer & Explanation Answer: D) Carbon dioxide

Explanation:

Carbon dioxide is present under pressure in soft drinks.

Report Error

View Answer Report Error Discuss

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

2 4789
Q:

What is called scratch pad of computer?

Answer

Cache Memory is scratch pad of computer.

Report Error

View answer Workspace Report Error Discuss

Subject: Hardware

2 4788
Q:

Two boxes contain 4 and 16 balls respectively. Two balls in the first box and four in the second, are black. If a box is chosen randomly and two balls are drawn at random from it, what is the
probability that at least one ball is black if the ball is not replaced?

A) 11/20 B) 43/120
C) 77/120 D) 9/20
 
Answer & Explanation Answer: C) 77/120

Explanation:

At least one black can be chosen in two ways from each box:
Now, probability of choosing at least one black ball from first box 

= 1/2 × [ (2C1× 2C1)/4C2 + 2C2/ 4C2 ]= 5/12

Probability of choosing at least one black ball from 2nd box
= 1/2 × [(4C1×12C1)/16C2 + 4C2/ 16C2] = 9/40

Final probability

= 5/12 + 9/40 = (50 + 27)/120 = 77/120

Report Error

View Answer Report Error Discuss

4 4786