Sandvik Mining and Rock Technology Interview Questions and Answers

Q1. What is a torque converter?
Ans. 
A torque converter is a fluid coupling that transfers power from the engine to the transmission in an automatic vehicle.
• It allows the engine to keep running while the vehicle is stopped

• It multiplies torque to increase power output

• Consists of three main components: impeller, turbine, and stator

• Commonly found in automatic transmission vehicles
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Q2. What is the process by which transmission works?
Ans. 
Transmission works by transferring power from the engine to the wheels, allowing the vehicle to change speed and direction.
• Transmission uses gears to control the power flow from the engine to the wheels

• The driver selects the appropriate gear based on speed and terrain

• Automatic transmissions use a torque converter to transfer power smoothly

• Manual transmissions require the driver to engage and disengage gears using a clu...read more
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Q3. How many types of differential?
Ans. 
There are mainly three types of differentials: open differential, limited-slip differential, and locking differential.
• Open differential allows wheels to spin at different speeds, useful for regular driving conditions.

• Limited-slip differential limits the speed difference between wheels, providing better traction.

• Locking differential locks both wheels together, ensuring equal power distribution for maximum traction.
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Q4. How many types of hydraulic pump?
Ans. 
There are mainly two types of hydraulic pumps: gear pumps and piston pumps.
• Gear pumps: simple design, cost-effective, suitable for low to medium pressure applications

• Piston pumps: higher efficiency, suitable for high pressure applications, more complex design

• Other types include vane pumps, radial piston pumps, and axial piston pumps
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Q5. How can I check if a potentiometer is working properly?
Ans. 
To check if a potentiometer is working properly, you can use a multimeter to measure the resistance across its terminals.
• Set the multimeter to the resistance measurement mode.

• Connect the multimeter leads to the outer two terminals of the potentiometer.

• Slowly turn the potentiometer knob and observe the resistance value on the multimeter.

• The resistance should change smoothly and continuously as you turn the knob.

• If the r...read more
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Q1. How many years of experience do you have?
Ans. 
I have 5 years of experience as a Service Engineer.
• I have worked in the field for 5 years

• Experience includes troubleshooting, maintenance, and repair of various equipment

• Familiar with different software and tools used in the industry
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Q2. Do you have any medical conditions?
Ans. 
No medical conditions.
• I do not have any medical conditions.

• I am in good health and able to perform the duties of a Service Engineer without any limitations.
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The duration was 50 minutes and included 55 questions focused on technical areas related to mechanical, electrical, and hydraulic systems, as well as some questions on safety and reasoning.

Q1. Basic Concept of Hydraulic system, component symbol. knowledge of Hydraulic drawing reading give plus point. Hydraulic pump, Hydraulic system component like Concept of Hyd cylinders, working , types, press...read more
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Q2. Basic electrical, Knowledge of electrical ckt component symbol. So can understand Schematic drawing reading. Working of Voltage, resistance, current. Their relationship, basic function of alternator used i...read more
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Q3. Basic Mechanical Basic engine component, flow diagram of engine operation. Air ckt, fuel ckt of enegine. What is Boost pressure, turbo charger, after cooler, Thermostat function. Gear box, axle, Transmissi...read more
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Q4. Before attending interview. Do some research of their product. Drill jumbo, Underground loader and trucks. If possible contact any employee via facebook, linkedin or anywhere possible for better idea on pr...read more
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Q1. Asking about hydraulc,pneumatic and electrical circuit diagram on the sandvik machine.
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Q2. Other machine related question also asking.Sandvik and epiroc drill working procedure.
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Q3. Asking all thing about drll machine and sales and service.
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Q1. Asking about your CTC and other document's and family background.
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Q2. Third party verification is impartant point.
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Q1. Tell me how electrical circuits are work
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Q1. Can you please explain about yourself?
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