Questions

Q:

Improve the bracketed part of the sentence.

Everyday we (have usually) dinner at 8 o'clock.

A) usually have B) have usual
C) have had usually D) no improvement
 
Answer & Explanation Answer: A) usually have

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 6108
Q:

Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

A) Golf tee B) Motorboat
C) Water skis D) Hang glider
 
Answer & Explanation Answer: C) Water skis

Explanation:
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Filed Under: Inventions

7 6105
Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec B) 3.44 sec
C) 4.65 sec D) 5.41 sec
 
Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second 

ho=2 feet 

So, h(t) = -16t^2 +110t +2 

Take the derivative: h'(t) = 110 -32t 

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0. 

So, set h'(t)=0 and solve for t: 

0 = 110 -32t 

-110 = -32t 

t=3.4375 

t=3.44 seconds.

 

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Filed Under: Physics
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3 6102
Q:

Can you slove this Maths Puzzle?

maths_puzzle1537500715.jpg image

A) 12 B) 6
C) 3 D) 1
 
Answer & Explanation Answer: B) 6

Explanation:

In the given puzzle, the logic behind is

9 = 72 => 9 x 8 = 72

8 = 56 => 8 x 7 = 56

7 = 42 => 7 x 6 = 42

6 = 30 => 6 x 5 = 30

5 = 20 => 5 x 4 = 20

 

Similarly,

4 = 12 => 4 x 3 = 12

3 = 6 => 3 x 2 = 6

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Filed Under: Math Puzzles
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19 6101
Q:

Kilohertz is a unit which measures

A) Electromagnetic radio wave frequencies B) Electric resistance
C) Power used by a current of one ampere D) Voltage
 
Answer & Explanation Answer: A) Electromagnetic radio wave frequencies

Explanation:

The hertz (Hz) is defined as one cycle per second and is a SI unit of frequency. Here kilohertz is also a unit of frequency of waves and is defined as 1000 cycles per second. Radio waves are measured in kilohertz (KHz).

 

Kilohertz_is_a_unit_which_measures1561453991.jpg image

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Filed Under: Physics
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6 6100
Q:

Wild goats and snow leopards are found in

 

 

A) Peninsular region B) Gir forests
C) Himalayan region D) All the above
 
Answer & Explanation Answer: C) Himalayan region

Explanation:

Wild goats and snow leopards are found in Himalayan region. 

 

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Filed Under: Animals and Birds
Exam Prep: Bank Exams

11 6099
Q:

what will be the output of the following code?

class Value
{
    public int i = 15;
}
public class Test
{
    public static void main(String argv[])
    {
        Test t = new Test();
        t.first();
    }
    public void first()
    {
        int i = 5;
        Value v = new Value();
        v.i = 25;
        second(v, i);
        System.out.println(v.i);
    }
    public void second(Value v, int i)
    {
        i = 0;
        v.i = 20;
        Value val = new Value();
        v =  val;
        System.out.println(v.i + " " + i);
    }
}

A) 15 0 2 B) 15 0 0
C) 15 20 0 D) 15 0 20
 
Answer & Explanation Answer: D) 15 0 20

Explanation:
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Q:

Which among the following writs can be issued against any private individual?

I. Certiorari

II. Prohibition

III. Habeas Corpus

 

A) Only III B) Both I and III
C) Both II and III D) No option is correct
 
Answer & Explanation Answer: A) Only III

Explanation:
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Filed Under: Indian Politics
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