You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VII

Physics

Rotatory Motion

Which of the ...

Question

Which of the following motion(s) is/are exhibited by the drill bit of a drill machine when we pierce a hole in a wall?

Rotational motion only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Rectilinear motion only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both rotational and rectilinear motion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both rotational and oscillatory motion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C Both rotational and rectilinear motion
While operating a drill machine in order to pierce a hole in a wall, we can observe that the drill bit rotates around its own axis. In order to dig a hole in the wall, we keep on moving it forward.
Thus, we can say that the drill bit exhibits rotational and rectilinear motion.
Oscillatory motion is defined as the to and fro motion of a body about its fixed position. The drill bit of a drill machine does not exhibit such motion.

Suggest Corrections

Similar questions

A carpenter needs to drill a hole in the wooden plank using a drilling machine. The depth of the hole to be drilled is 20cm. Find the time required to drill the hole if the machine drills at a speed of 0.3 m/min.

Q. When a number of single spindle drilling machine columns are placed side by side on a common work table, The machine is known as:

Q. A

ϕ - 20 m m

through hole is to be drilled in a

30 m m

thick plate using a double fluted,

120^{o}

lip angle drill. The drill tip is at a distance of

3 m m

from the plate surface when cutting is started and an overtravel of

2 m m

500 r e v / m n

and the feed per tooth is

0.01 m m

, the machining time of the operation (in

m i n

) will be

Q. A

10 k W

drilling machine is used to drill a bore in a small aluminium block of mass

8 k g

. Find the rise in temperature of the block in

2.5

minutes,assuming

50 %

power is used up in heating the machine itself or lost to the surroundings.
(Specific heat of aluminium

= 0.91 J g^{- 1}^{o} C^{- 1})

Q. A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8 kg.Find the rise in temperature of the block in 2.5 minutes, assuming 50% power is used up in heating the machine itself or lost to the surroundings.
(Specific heat of aluminium

= 0.90 J g^{- 10}^{- 1})

Join BYJU'S Learning Program