A59 360 Excavator Questions With Complete
Solutions
SECTION I: MACHINE OPERATION & PRE-USE CHECKS
Question 1
Why should an excavator be refuelled at the end of the day?
A) To ensure it is ready for the next operator
B) To prevent condensation building up in the tank as it cools down
C) To reduce the risk of theft
D) To comply with environmental regulations
Rationale: Refuelling at the end of the day prevents condensation from forming
inside the fuel tank as the machine cools. This moisture can contaminate the fuel
and damage the engine .
Question 2
Where should the excavator operator's manual be kept and why?
A) In the site office for safety records
B) In the transport vehicle for easy access
C) Inside the machine in a place where the operator has easy access
D) With the site manager for safe keeping
Rationale: The operator's manual must be kept inside the machine where the
operator can access it at all times. This ensures that operational and safety
information is always available when needed .
Question 3
If checking the oil level using a dipstick, why must gloves be worn?
,A) To prevent staining hands with oil
B) To protect against hot surfaces and contaminants
C) For better grip on the dipstick
D) To comply with site dress code
Rationale: Gloves must be worn when checking oil levels to protect hands from hot
engine components and potential contaminants in the oil. This is a basic safety
precaution during routine checks .
Question 4
What is the purpose of the counterweight on the machine?
A) To make the machine look balanced
B) To increase ground pressure for traction
C) To provide stability and prevent tipping when lifting or excavating
D) To counterbalance the engine weight
Rationale: The counterweight is mounted at the rear of the machine and provides
stability by counterbalancing the weight of the boom, dipper, bucket, and any load
being handled. Without it, the machine would be prone to tipping forwards .
Question 5
What is the purpose of a ROPS frame (Roll-Over Protective Structure)?
A) To provide a mounting point for lights
B) To protect the operator in the event of a roll-over
C) To improve the machine's appearance
D) To support the cab air conditioning unit
Rationale: A ROPS frame is designed to protect the operator if the machine rolls
over. It provides a protective structure around the cab to prevent crushing injuries .
, SECTION II: SAFE EXCAVATING & TRENCH WORK
Question 6
Why should different soils be segregated during excavating?
A) To make the site look tidier
B) Because soils can be re-used elsewhere
C) To prevent soil erosion
D) To reduce dust levels
Rationale: Soils should be segregated during excavation because different types of
soil have different properties and can be re-used for different purposes (e.g.,
topsoil for landscaping, subsoil for backfilling) .
Question 7
Before manually changing any bucket:
a) Where should the bucket be positioned before removing the final pin?
b) Explain why.
a) The bucket should be placed on the ground
b) To prevent striking personnel
Rationale: Placing the bucket on the ground before removing the final pin prevents
it from falling unexpectedly, which could cause serious injury to personnel working
on the attachment. This ensures stability during the changeover process .
Question 8
If setting up to excavate in a confined area, name TWO things that should be taken
into account before starting.
A) Proximity hazards and spoil placing
B) Weather conditions and time of day
Solutions
SECTION I: MACHINE OPERATION & PRE-USE CHECKS
Question 1
Why should an excavator be refuelled at the end of the day?
A) To ensure it is ready for the next operator
B) To prevent condensation building up in the tank as it cools down
C) To reduce the risk of theft
D) To comply with environmental regulations
Rationale: Refuelling at the end of the day prevents condensation from forming
inside the fuel tank as the machine cools. This moisture can contaminate the fuel
and damage the engine .
Question 2
Where should the excavator operator's manual be kept and why?
A) In the site office for safety records
B) In the transport vehicle for easy access
C) Inside the machine in a place where the operator has easy access
D) With the site manager for safe keeping
Rationale: The operator's manual must be kept inside the machine where the
operator can access it at all times. This ensures that operational and safety
information is always available when needed .
Question 3
If checking the oil level using a dipstick, why must gloves be worn?
,A) To prevent staining hands with oil
B) To protect against hot surfaces and contaminants
C) For better grip on the dipstick
D) To comply with site dress code
Rationale: Gloves must be worn when checking oil levels to protect hands from hot
engine components and potential contaminants in the oil. This is a basic safety
precaution during routine checks .
Question 4
What is the purpose of the counterweight on the machine?
A) To make the machine look balanced
B) To increase ground pressure for traction
C) To provide stability and prevent tipping when lifting or excavating
D) To counterbalance the engine weight
Rationale: The counterweight is mounted at the rear of the machine and provides
stability by counterbalancing the weight of the boom, dipper, bucket, and any load
being handled. Without it, the machine would be prone to tipping forwards .
Question 5
What is the purpose of a ROPS frame (Roll-Over Protective Structure)?
A) To provide a mounting point for lights
B) To protect the operator in the event of a roll-over
C) To improve the machine's appearance
D) To support the cab air conditioning unit
Rationale: A ROPS frame is designed to protect the operator if the machine rolls
over. It provides a protective structure around the cab to prevent crushing injuries .
, SECTION II: SAFE EXCAVATING & TRENCH WORK
Question 6
Why should different soils be segregated during excavating?
A) To make the site look tidier
B) Because soils can be re-used elsewhere
C) To prevent soil erosion
D) To reduce dust levels
Rationale: Soils should be segregated during excavation because different types of
soil have different properties and can be re-used for different purposes (e.g.,
topsoil for landscaping, subsoil for backfilling) .
Question 7
Before manually changing any bucket:
a) Where should the bucket be positioned before removing the final pin?
b) Explain why.
a) The bucket should be placed on the ground
b) To prevent striking personnel
Rationale: Placing the bucket on the ground before removing the final pin prevents
it from falling unexpectedly, which could cause serious injury to personnel working
on the attachment. This ensures stability during the changeover process .
Question 8
If setting up to excavate in a confined area, name TWO things that should be taken
into account before starting.
A) Proximity hazards and spoil placing
B) Weather conditions and time of day
