MCQ on Introduction to Graphs for Class 8
Class 8 Maths Chapter 15 Introduction to Graphs MCQ
MCQ of Introduction to Graphs Class 8
I. Choose the correct answer.
Question 1.
A bar graph may consist of __________ parallel vertical bars.
A) 1 or more
B) 2 or more
C) at least 3
D) 4 or more
Answer:
B) 2 or more
Question 2.
We draw __________ bar graph to get comparison of two items.
A) histogram
B) single
C) double
D) multiple
Answer:
C) double
Question 3.
In a bar graph __________ are equal in general.
A) gap between bars
B) heights of bars
C) width of bars
D) ‘A’ and ‘C’
Answer:
D) ‘A’ and ‘C’
Question 4.
Which of the following statements are true ?
A) All histograms are bar graphs
B) All bar graphs need not histograms
C) Histograms have adjacent bars over the intervals
D) All the above
Answer:
D) All the above
Question 5.
__________ graph displays data that changes continuously over periods of time
A) Line
B) Circular
C) Bar
D) Multiple Bar
Answer:
A) Line
Question 6.
__________ line is called X – axis.
A) Vertical
B) Horizontal
C) Vertical or Horizontal
D) Any curved
Answer:
B) Horizontal
Question 7.
Vertical line is usually called __________ .
A) X – axis
B) original line
C) origin line
D) Y – axis
Answer:
D) Y – axis
Question 8.
this jagged line is used on __________
A) X – axis
B) Y – axis
C) Any axis
D) Any part of graph
Answer:
C) Any axis
Question 9.
Temperature at 11 AM __________ .
A) 20° C
B) 25° C
C) 30° C
D) 35° C
Answer:
B) 25° C
Question 10.
Temperature is high at __________ .
A) 12 Noon
B) 2 PM
C) 1 PM
D) 11 .AM
Answer:
A) 12 Noon
Question 11.
Temperature is equal at __________ .
A) 10 AM, 11 AM
B) 11 AM, 1 PM
C) 10 AM, 2 PM
D) ’B’ and ‘C’
Answer:
C) 10 AM, 2 PM
Question 12.
At 12 noon temperature is __________ .
A) 25° C
B) 30° C
C) around 28° C
D) 35° C
Answer:
C) around 28° C
Question 13.
Wind flow is maximum at __________ .
A) 12 noon
B) fore noon session
C) 2 PM
D) before 1 PM
Answer:
C) 2 PM
Question 14.
Wind flow is low at __________ .
A) before 10 PM
B) before 10 AM
C) All the day
D) After 1 PM
Answer:
B) before 10 AM
Question 15.
Wind speed @ 20 m/sec at __________ .
A) 11 AM
B) 12 noon
C) 1 PM
D) 2 PM
Answer:
A) 11 AM
Question 16.
Wind speed is equal at __________ .
A) 11 AM, 12 noon
B) 12, 1 PM
C) 1 PM, 2 PM
D) never
Answer:
D) never
Expenditure of salaried person at 56000/¬pm is as follows (Q.No. 17 to 24)
Question 17.
What is the expenditure incurred for food per month ?
A) ₹ 9000/-
B) ₹ 18000/-
C) ₹ 14000/-
D) ₹ 22000/-
Answer:
C) ₹ 14000/-
Question 18.
What is angle at centre of sector ‘expenditure’ ?
A) 40°
B) 120°
C) 140°
D) 144°
Answer:
D) 144°
Question 19.
What percent of angle is made at sector ‘Education’ ?
A) 20%
B) 15%
C) 35%
D) 84%
Answer:
B) 15%
Question 20.
What percent of amount is allotted for education ?
A) 18%
B) 16%
C) 17%
D) 15%
Answer:
D) 15%
Question 21.
What amount is kept reserve for savings ?
A) ₹ 14000/-
B) ₹ 10200/-
C) ₹ 11200/-
D) ₹ 12600/-
Answer:
C) ₹ 11200/-
Question 22.
What percent of amount is spent for food ?
A) 90%
B) 25%
C) 14%
D) 20 %
Answer:
B) 25%
Question 23.
Total amount spent for ’Expenditure’ and ‘Saving’ is __________ .
A) ₹ 33600/-
B) ₹ 22400/-
C) ₹ 11 200/-
D) none
Answer:
A) ₹ 33600/-
Question 24.
How much is spent for domestic expenditure per month ?
A) 12400/-
B) 21400/-
C) 22400/-
D) 26400/-
Answer:
C) 22400/-
(Q.No : 25 to 30) For the following A, R type questions. Choose the answer from the following options.
A) Both ‘A’ and. ‘R’ are correct and ’R’ is reason for ‘A’
B) Both ‘A’ and ‘R’ are correct but ’R’ is not reason for ‘A’.
C) ‘A’ is true but ‘R’ is false
D) ‘A’ is false but ‘R’ is true.
Question 25.
Assertion (A) : A pie chart shows the data in sectors.
Reason (R) : Histogram is a bar graph that shows data in intervals.
Answer:
B) Both ‘A’ and ‘R’ are correct but ’R’ is not reason for ‘A’.
Question 26.
Assertion (A) : 
a possible time-temperature graph.
Reason (R) : Time – temperature graphs are line – graphs but not parallel to Y – axis.
Answer:
A) Both ‘A’ and. ‘R’ are correct and ’R’ is reason for ‘A’
Question 27.
Assertion (A) : (4, 3) is a point which is at a distance of 4 units from X – axis and 3 units from Y – axis.
Reason (R) : (3, 4) is a point which is at a distance of 4 units from X – axis and 3 units from Y – axis.
Answer:
D) ‘A’ is false but ‘R’ is true.
Question 28.
Assertion (A) : (a, 0) is a point on X – axis.
Reason (R) : y-co-ordinates of all points on X-axis are zero and x – co-ordiantes of all points on Y – axis is zero.
Answer:
A) Both ‘A’ and. ‘R’ are correct and ’R’ is reason for ‘A’
Question 29.
Assertion (A) : (2, 1), (3. 1), (4, 1) are points on a line parallel to Y – axis.
Reason (R): (4, 1), (4, 2), (4, 3) are points on a line parallel to Y – axis.
Answer:
D) ‘A’ is false but ‘R’ is true.
Question 30.
Assertion (A) : 
it shows simple interest and amount deposited.
Reason (R) : 
it shows simple interest and amount deposited.
Answer:
C) ‘A’ is true but ‘R’ is false
Income to a state as follows
II. Now, fill in the blanks.
1. Income of a state is shown in a ___________ graph.
Answer:
pie or (circular)
2. Income from Agriculture is ___________ lakh crores.
Answer:
0.384
3. ___________ % of income is from industrial sector.
Answer:
15%
4. Service sector angle is __________ .
Answer:
126°
5. ___________ % of income is from Real Estate.
Answer:
20%
6. A point (4, 0) lies on ___________ axis.
Answer:
X – axis
III. Match the following.
Question 1.
| A | B |
| 1) (4, 0) is a point on | a) parts of a whole |
| 2) Bar graph is used to compare | b) among categories |
| 3) Pie chart is used to compare | c) Y – axis |
| 4) Histogram is a bargraph | d) X – axis |
| 5) (0, -6) is a point on | e) shows data in intervals. |
Answer:
(1, d) (2, b) (3, a) (4, e) (5, c)
| A | B |
| 1) (4, 0) is a point on | d) X – axis |
| 2) Bar graph is used to compare | b) among categories |
| 3) Pie chart is used to compare | a) parts of a whole |
| 4) Histogram is a bargraph | e) shows data in intervals |
| 5) (0, -6) is a point on | c) Y – axis |
Question 2.
| A | B |
| 1) line graph | a) through a graph |
| 2) linear graph | b) displays data changes continuously over period of time |
| 3) x – coordinate is distance from | c) Y – axis |
| 4) y – coordinate is distance from | d) A line graph which is a whole unbroken line |
| 5) Relation between dependent and independent variables is shown | e) X – axis |
Answer:
(1, b) (2, d) (3, c) (4, e) (5, a)
| A | B |
| 1) line graph | b) displays data changes continuously over period of time |
| 2) linear graph | d) A line graph which is a whole unbroken line |
| 3) x – coordinate is distance from | c) Y – axis |
| 4) y – coordinate is distance from | e) X – axis |
| 5) Relation between dependent and independent variables is shown | a) through a graph |