### Fraction Questions for competitive exams:

## Fraction Practice Test

Question 1 |

In an examination, a student was asked to find 3/14 of a certain number. By mistake, he found 3/4 of it. His answer was 150 more than the correct answer. Find the given number.

275 | |

280 | |

285 | |

290 |

Question 2 |

A cylinder of 10

*kg*is sliding in a plane with an initial velocity of 10*m*/*s*. If the coefficient of friction between the surface and cylinder is 0.5 then before stopping, it will cover. (g = 10 m/s^{2})7.5 m | |

10 m | |

2.5 m | |

5 m |

Question 3 |

A uniform metal chain is placed on a rough table such that one end of chain hangs down over the edge of the table. When one-third of its length hangs over the edge, the chain starts sliding. Then, the coefficient of static friction is

½ | |

¼ | |

2/3 | |

3/4 |

Question 4 |

1/5 of 35+4 (9-3) = ?

42 | |

31 | |

15 | |

24 |

Question 5 |

6 + [2 + {4 x (8 - 3) - (2 x 6) - 1} + 2] = ?

19 | |

15 | |

17 | |

13 |

Question 6 |

Which one of the following statements is correct?

Rolling friction and sliding friction are same | |

Rolling friction is less than sliding friction | |

Rolling friction is greater than sliding friction | |

Rolling friction is equal to sliding friction |

Question 7 |

When two surfaces are coated with a lubricant, then they

Roll upon each other | |

None of these | |

Slide upon each other | |

Stick to each other |

Question 8 |

A motorcycle is travelling on a curved track of radius 500

*m.*If the coefficient of friction between road and tyres is 0.5, the speed avoiding skidding will be35 m/s | |

75 m/s | |

25 m/s | |

50 m/s |

Question 9 |

The sum of the smallest six digit number and the greatest five digit number is

211110 | |

1099999 | |

199999 | |

201110 |

Question 10 |

A car turns a corner on a slippery road at a constant speed of 10 m/s. If the coefficient of friction is 0.5, the minimum radius of the arc in meter in which the car turns is

20 | |

4 | |

10 | |

5 |

Question 11 |

The product of two numbers is 120. The sum of their squares is 289. The sum of the two numbers is

169 | |

20 | |

150 | |

23 |

Question 12 |

A block of mass 10

*kg*is placed on an inclined plane. When the angle of inclination is 30^{o}, the block just begins to slide down the plane. The force of static friction is49 kg wt | |

89 kg wt | |

5 kg wt | |

10 kg wt |

Question 13 |

Which of the following statements is not true?

**Related:** Mathematical operations questions

The coefficient of friction between wood and wood is less than 1 | |

The force of friction acts in a direction opposite to the applied force | |

Rolling friction is greater than sliding friction | |

The coefficient of friction between two surfaces increases as the surface in contact are made rough |

Question 14 |

It is easier to roll a barrel than pull it along the road. This statement is

**Related:** Permutation Practice Quiz

False | |

Uncertain | |

True | |

Not possible |

Question 15 |

A 2

*kg*mass starts from rest on an inclined smooth surface with inclination 30^{o}and length 2*m*. How much will it travel before coming to rest on a frictional surface with frictional coefficient of 0.256 m | |

2 m | |

4 m | |

8 m |

Question 16 |

The force required just to move a body up an inclined plane is double the force required just to prevent the body sliding down. If the coefficient of friction is 0.25, the angle of inclination of the plane is

45° | |

30° | |

36.8° | |

42.6° |

Question 17 |

A box is placed on an inclined plane and has to be pushed down. The angle of inclination is

More than angle of friction | |

Equal to angle of repose | |

Less than angle of repose | |

Equal to angle of friction |

Question 18 |

A body of mass 2

*kg*is being dragged with uniform velocity of 2*m*/*s*on a rough horizontal plane. The coefficient of friction between the body and the surface is 0.20. The amount of heat generated in 5 sec is (J = 4.2 joule / cal and g = 9.8 m/s^{2})13.34 cal | |

10.21 cal | |

12.67 cal | |

9.33 cal |

There are 18 questions to complete.

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