Answer: Option A. -> 09:00
:
A
At $09:00$, hour hand and minute hand are at right angles to each other. At all the other instances, the minute hand has moved, so the hour hand would have moved too. Hence, the angle formed will not be ${90}^{\circ }$ in those cases.

Answer: Option C. -> 60∘
:
C
If you follow all the steps, you would get this:

If you measure $\angle PAB$, the value which you would get is ${60}^{\circ }$.

Answer: Option A. -> 09:00
:
A
At $09:00$, hour hand and minute hand are at right angles to each other. At all the other instances, the minute hand has moved, so the hour hand would have moved too. Hence, the angle formed will not be ${90}^{\circ }$ in those cases.

:
$\angle ABC$ is also known as a right angle if it is equal to ${90}^{\circ }$.

Answer: Option B. -> False
:
B
It is possible to copy line segment CB without using a ruler or a compass or a divider by tracing it on another paper. It may not be that accurate, but it is possible.

Answer: Option D. -> Trapezium
:
D
We know that all squares are rhombuses and parallelograms. We can alsomake a pentagon as shown in the figure. But we can never get a trapezium using $2$ set squares with angles (${45}^{\circ }$-${45}^{\circ }$-${90}^{\circ }$).

Answer: Option B. -> False
:
B

Take a line segment say AB. Make angles ${60}^{\circ }$ on both the ends such that the lines along those angles intersect at C. Taking AB as the base side, draw ${30}^{\circ }$ angle and a line along it such that it intersects AB at D. Point D bisects AB and $\angle ADB$ is ${90}^{\circ }$. So, AD is the perpendicular bisector of AB.

:
The four tools used for drawing shapes are:
i)Rulers
ii)Compasses
iii)Set squares
iv)Protractor

:
Constructing PQ: 1 Mark
Steps: 2Mark
Steps for constructing PQ based on the length of AB:
(i) Let AB be the line segment.

(ii) Adjust the compass up to the length of AB.

(iii) Draw any line land mark a point P on it.

(iv) Put the pointer on P and withoutchanging the setting of the compass, draw an arc to cut the line segment at point X.
(v) Now, put the pointer on X and again draw an arc with the same radius as before, to cut the line lat the point Q.

PQ is the required line segment.

:
Construction of Angles: 1 Mark each
${60}^{\circ }$ angle

${30}^{\circ }$ angle