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Question (21)

QN004015

A damaged scale shows readings 7.4 cm and 17.9 cm at the two ends of a pencil. What is the pencil length?

(A) 25.3 cm
(B) 10.5 cm
(C) 17.9 cm
(D) 7.4 cm

Correct Answer: B

Explanation:

17.9 − 7.4 = 10.5 cm

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Question (22)

QN004016

Which statement best describes the correct use of a measuring scale?

(A) Keep it away from the object.
(B) Keep it touching the object along its length.
(C) Hold it vertically always.
(D) Read from any direction.

Correct Answer: B

Explanation:

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Question (23)

QN004017

A notebook edge lies between 2.2 cm and 20.8 cm on a broken scale. Its length is

(A) 18.6 cm
(B) 23.0 cm
(C) 20.8 cm
(D) 2.2 cm

Correct Answer: A

Explanation:

20.8 − 2.2 = 18.6 cm

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Question (24)

QN004018

Flexible measuring tapes are preferred for body measurements because they are

(A) transparent
(B) colourful
(C) bendable
(D) metallic only

Correct Answer: C

Explanation:

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Question (25)

QN004019

Which reading method avoids parallax error?

(A) Looking from the left
(B) Looking from the right
(C) Looking directly above the mark
(D) Looking from below

Correct Answer: C

Explanation:

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Question (26)

QN004020

A stick extends from 3.8 cm to 13.5 cm on a broken scale. Its length is

(A) 17.3 cm
(B) 9.7 cm
(C) 13.5 cm
(D) 3.8 cm

Correct Answer: B

Explanation:

13.5 − 3.8 = 9.7 cm

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Question (27)

QN004021

Which type of scale can be used by visually challenged students?

(A) Transparent scale
(B) Digital scale
(C) Scale with raised markings
(D) Wooden rod only

Correct Answer: C

Explanation:

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Question (28)

QN004022

A ribbon occupies markings from 8.1 cm to 19.0 cm. What is its length?

(A) 27.1 cm
(B) 10.9 cm
(C) 19.0 cm
(D) 8.1 cm

Correct Answer: B

Explanation:

19.0 − 8.1 = 10.9 cm

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Question (29)

QN004023

What should be done first before measuring any length?

(A) Choose an appropriate measuring instrument
(B) Estimate randomly
(C) Convert units
(D) Draw a diagram

Correct Answer: A

Explanation:

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Question (30)

QN004024

Which of the following is an inappropriate measuring instrument?

(A) Measuring a room height with a metre scale
(B) Measuring a pencil with a 15-cm scale
(C) Measuring chest size with a metre rod
(D) Measuring a desk with a scale

Correct Answer: C

Explanation:

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Question (21)

A damaged scale shows readings 7.4 cm and 17.9 cm at the two ends of a pencil. What is the pencil length?

Explanation:

Link:

Question (22)

Which statement best describes the correct use of a measuring scale?

Explanation:

Link:

Question (23)

A notebook edge lies between 2.2 cm and 20.8 cm on a broken scale. Its length is

Explanation:

Link:

Question (24)

Flexible measuring tapes are preferred for body measurements because they are

Explanation:

Link:

Question (25)

Which reading method avoids parallax error?

Explanation:

Link:

Question (26)

A stick extends from 3.8 cm to 13.5 cm on a broken scale. Its length is

Explanation:

Link:

Question (27)

Which type of scale can be used by visually challenged students?

Explanation:

Link:

Question (28)

A ribbon occupies markings from 8.1 cm to 19.0 cm. What is its length?

Explanation:

Link:

Question (29)

What should be done first before measuring any length?

Explanation:

Link:

Question (30)

Which of the following is an inappropriate measuring instrument?

Explanation:

Link:

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