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Q:

In which of the following business areas Bausch & Lomb is operating in?

A) Vision care B) Auto ancillary
C) Apparel D) Retailing
 
Answer & Explanation Answer: A) Vision care

Explanation:
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Filed Under: Business Awareness

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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

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

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Q:

Which is the Lightest of all the metals?

A) Hydrogen B) Lithium
C) Sodium D) Pottasium
 
Answer & Explanation Answer: B) Lithium

Explanation:

Lithium is the lightest of all the metals due to its low atomic number among meetals

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Filed Under: Chemistry

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Q:

Gases used in normal welding?

A) Oxygen and Acetylene B) Acetylene and Nitrogen
C) Oxygen, Hydrogen and Acetylene D) Oxygen and Hydrogen
 
Answer & Explanation Answer: A) Oxygen and Acetylene

Explanation:

Normal Gas welding use oxygen-acetylene.

 

Depending on what materials you are welding, there are some more options that might be used.

For example - MIG/TIG use Argon, MAG use an argon-something mix.

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

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Q:

Who has been appointed as Chairman and Managing Director of Hindustan Copper Limited (HCL) in 2017 ?

A) Debasis Jana B) Sankara Rao
C) Dev Patel D) Santosh Sharma
 
Answer & Explanation Answer: D) Santosh Sharma

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

7 4424
Q:

What name, taken from a medieval fortress near London , was adopted as the official name of the British Royal family in 1917?

Answer

Windsor

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Subject: General Awareness

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Q:

Administrators of Union Territories are responsible to the 

A) Union Home Minister B) Lok Sabha
C) President D) Union Parliament
 
Answer & Explanation Answer: C) President

Explanation:

Various designations have been specified by the President for the different Union Territories:

(i) Chief Commissioner for Chandigarh

(ii) Administrator for

     (a) Lakshadweep and

     (b) Dadra and Nagar Haveil

(iii) Lieutenant Governor for 

    (a) Andaman and Nicobar Islands

    (b) Delhi

    (c) Daman and Diu and

    (d) Pandicherry

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Filed Under: Indian Politics

9 4423
Q:

What device converts light energy to electrical energy?

A) Photodiode B) Photovoltaic cell
C) Thermocouple D) Heliostats
 
Answer & Explanation Answer: B) Photovoltaic cell

Explanation:

what_device_converts_light_energy_to_electrical_energy1555397376.png image

 

A device which is used to convert light energy directly into electrical energy is called as photovoltaic cell or a solar cell.

 

Heliostats convert light energy into heat energy.

 

A thermocouple is a device for measuring temperature.

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

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