ERECTION AND TESTING - Practice Mode

1) What is the purpose of hydraulic floor cranes?

To lift the loads To shift the loads Used on lever to lift or lead heavy loads To raise and lower the load

Correct Answer: Used on lever to lift or lead heavy loads

2) Which is a system of two or more pulleys with a rope threaded between them?

Differential hoist Pulley block Spur geared hoist Come along chain hoist

Correct Answer: Pulley block

3) Which wire rope strands are twisted in the same direction?

Lang lay rope Rigid lay rope Regular lay rope Combined lay rope

Correct Answer: Lang lay rope

4) What is the purpose of triangular frame base resting on ground in the frame of derrick lifting equipment?

Prevent the vibration Avoid slipping of load Prevent imbalance of load Prevent base from moving under load

Correct Answer: Prevent base from moving under load

5) Why foundation bolts are essential to machines?

Observe vibration Hold machine firmly Improve the production Avoid shifting of machine

Correct Answer: Hold machine firmly

Explanation:

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