IT Trainer Questions


Q:

The capacity of a tank is 2400 m3.  A pump can be used both for filling and emptying the tank.  The emptying capacity of the pump is 10 m3/minute higher than its filling capacity. And also, the pump needs 8 minutes less to empty the tank than to fill it. Find the filling capacity of the pump. 

A) 46 cub.m/min B) 44 cub.m/min
C) 48 cub.m/min D) 50 cub.m/min
 
Answer & Explanation Answer: D) 50 cub.m/min

Explanation:

Let filling capacity of the pump be 'F' m3/min

Then, the filling capacity of the pump will be (F + 10) m3/min

From the given data,

2400F - 2400F+10= 8 2400 F+10-FF(F+10) =8 F2 + 10F - 3000 = 0 F = 50 m3/min

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15 5718
Q:

The intersection of a column and a row

A) Cell B) Menu
C) Key D) Field
 
Answer & Explanation Answer: A) Cell

Explanation:

The intersection of a column and a row in a spread sheet is called as a cell or a bon.

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5 5660
Q:

What are the advantages of LINQ ?

Answer

- Debugging is esy.
- Reduces Development Time.
- LINQ offers IntelliSense which means writing more accurate queries easily.

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Subject: Oracle
Job Role: Analyst , IT Trainer

3 5658
Q:

Which of the following is not a function of the Control Unit?

A) Interpret instructions B) Read instructions
C) Execute instructions D) Direct operations
 
Answer & Explanation Answer: B) Read instructions

Explanation:

Control Unit can perform the functions Interpret instructions, Execute instructions and Direct operations. But Reading instructions is not a function of the Control Unit.

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13 5653
Q:

4 45 of 259.99 = ? % of 1247.9

A) 96 B) 100
C) 78 D) 88
 
Answer & Explanation Answer: B) 100

Explanation:

Given 

4 45 of 259.99 = ? % of 1247.9

24/5 x 260 = ? x 1248/100

? = 1248 x 100/1248

? = 100.

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6 5636
Q:

X implements Y extends Z

A) X can be class Y,Z are interfaces B) X is an interface Y,Z are classes
C) X,Y are classes Z is an interface D) Complilation error
 
Answer & Explanation Answer: D) Complilation error

Explanation:

It is a compilation error it should be X extends Y implements Z

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Filed Under: Java
Job Role: IT Trainer

3 5626
Q:

The percentage of irrigated land in India is about

A) 66% B) 35%
C) 71% D) 22%
 
Answer & Explanation Answer: B) 35%

Explanation:

According to World Bank Indicator India - Land use:

      • Agriculture Land - 1797090 sq. Km (about 60.4%). 
      • Forest Area - 677598 sq. Km. (about 22.08%). 
      • Agriculture Irrigated land - 35 %.



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Filed Under: Indian Geography
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Database Administration , Bank PO

16 5623
Q:

The depth of a complete binary tree is given by

A) Dn = log 2 (n+1) B) Dn = log 1/2 (n+1)
C) Dn = log (n+1) D) Dn = log 2 (n-1)
 
Answer & Explanation Answer: A) Dn = log 2 (n+1)

Explanation:

A complete binary tree is a binary tree where all the levels have maximum number of nodes except possibly the last level.

 

The depth of complete binary tree of n nodes will be Dn=log 2 (n+1) where Dn is the height or depth of the tree and n is the number of nodes.

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9 5580