User Forum

Ask Your Question

Kushagra Shukla from Presidium dwarka, New Delhi

Subject :NSO Class : Class 4

Which of these statements is INCORRECT?

ACranes used to lift loads use pulleys.
BA wedge is made up of two inclined planes.
CFork is an example of lever.
DScrew is used to lower and raise things.

HOW ARE SCREWS USED FOR RAISING AND LOWERING

View All Answers (5)

Ans 1:

AniAdi from Cambridge public school, Bangalore

Class : Class 5

Screw is used to fasten things and not really used to lower and raise things.. Isnt D incorrect too?

Ans 2:

Ayaansh Singhal from Pinewood School, Saharanpur

Class : Class 7

please give the master ans

Ans 3:

Priyanka Dahiya from St. Theresa's senior secondary Convent school , Karnal

Class : Class 5

fork can be considered as both 'Lever' and 'wedge'. answer should be D.

Ans 4:

Ishan Kapilbhai Barochiya from Mayoor Private School , Abu Dhabi

Class : Class 8

no chairs also use screws to go up nd down

Ans 5:

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi

Class : Class 9