# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 1137 - 1142 of 1732

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## Question number: 1137

### Question

Which one is not an oscillatory motion:

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | ||

c. | Motion of the hammer of an electric bell. | |

d. | None of the above |

## Question number: 1138

» Mathematics » Triangle and Properties

### Question

Which of the following always lie inside the triangle?

### Choices

Choice (4) | Response | |
---|---|---|

a. | Orthocenter | |

b. | Circumcenter | |

c. | Incenter | |

d. | None of the above |

## Question number: 1139

» Mathematics » Triangle and Properties

### Question

The Circumcenter of a triangle is the point where

### Choices

Choice (4) | Response | |
---|---|---|

a. | The altitudes meet | |

b. | The medians meet | |

c. | The right bisectors of the sides of the triangle meet | |

d. | The bisectors of the angles of the triangle meet |

## Question number: 1140

### Question

The arithmetic mean of first seven odd numbers is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 5 | |

b. | 11 | |

c. | 14 | |

d. | 7 |

## Question number: 1141

» Mathematics » Triangle and Properties

### Question

Two sides of a triangle are 8 and 11 units. Which of the following length can be the length of the third side?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 14 cm | |

b. | 3 cm | |

c. | 19 cm | |

d. | 21 cm |

## Question number: 1142

» Mathematics » Integers

### Question

If positive sign precedes a bracket the sign of the terms inside the bracket will ________ when the bracket is removed.

### Choices

Choice (4) | Response | |
---|---|---|

a. | Change | |

b. | Be 0 | |

c. | Not change | |

d. | Question does not provide sufficient data or is vague |