Which is not a type of simple machine?

Which is not a type of simple machine?
1). Spring
2). Screw
3). Pulley
4). Wedge

---

Join Telegram Group

Other Questions

1. The gas that is used in the manufacture of vanaspati ghee is :

2. Five capacitors each of 10 μF are connected in series, the equivalent capacitance of the system is;

3. Dry ice is

4. What is the most common salt in sea water ?

5. Which of the following is used in making smoke bombs?

6. The purity of gold is expressed in carats. The purest form of goldis.

7. The gas that usually causes explosions in coal mines is

8. Eclipses occur due to which optical phenomena?

9. Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is

10. Which layer protects earth from harmful rays of the Sun?