Using the inner (anti-clockwise) scale of the protractor (shown in Fig.), the measure of $\angle b$ is

Using the outer (clockwise) scale of the protractor (shown in figure), measure of $\angle f$ is

 Find the angle between the hands of a clock at  $7$ o'clock

There are markings as shown on a domestic appliance. Through how many degrees does the pointer turn when it moves.

clockwise from off to cold.

There are markings as shown on a domestic appliance. Through how many degrees does the pointer turn when it moves :

 anti-clockwise from hot to warm?

There are markings as shown on a domestic appliance. Through how many degrees does the pointer turn when it moves :

 clockwise from very hot to cool?