0905

What is the item that the stacker is regularly inspec ted by law and order every month?

• engine

• braking device

• electrical device

• cooling device.

Whom should you directly report to when a stacker accident causes personnel or property damage?

• guard on duty

• site operations supervisor 

• personnel department

• procurement staff.

What type of fire is the ABC dry powder fire extinguisher suitable for? 

• Class AB

• Class ABC

• Class ABD

• Class ABCD

Which is the heaviest in the same size? 

• concrete

• sandstone

• iron plate 

• dry sand

What type of braking system does the small stacker use?

• neutral type

• internal beam type 

• outer expanding type

• straight beam type.

Where is the diesel engine fuel mixed with air?

• in the cylinder 

• outside the cylinder 

• in the intake manifold 

• outside the intake manifold.

Which of the following is not a requirement for electric stacker batteries? 

• vibration-resistant and strong impact 

• high voltage

• long service life

• easy maintenance

What does a higher engine oil grade number indicate about the viscosity?

• stronger viscosity

• weaker viscosity

• unchanged

• not necessarily