Epiroc Service Technician Interview Questions and Answers

Q1. I work with 5 axis machine dmu125 fd machine
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Q2. I learn g code and m code
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Q1. What do you know about the Company
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Q1. Bearing Definition and types of bearing
Ans. 
Bearings are machine elements that reduce friction between moving parts and support axial and radial loads.
• Bearings are used in various applications such as automobiles, aircraft, and industrial machinery.

• There are several types of bearings including ball bearings, roller bearings, and plain bearings.

• Ball bearings are the most common type and consist of a series of balls held between two rings.

• Roller bearings use cylin...read more
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Q2. Whywe are use bearing
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Bearings are used to reduce friction and support rotating or moving parts.
• Bearings help in reducing friction between two moving parts, which in turn reduces wear and tear of the parts.

• They also help in supporting the weight of the rotating or moving parts.

• Bearings are used in various applications such as in automobiles, industrial machinery, and household appliances.

• Examples of bearings include ball bearings, roller be
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Q1. All instruments questions
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Q2. Cv transmitter dcs plc
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Q1. All instruments questions
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Q2. All transmitter and cv dcs all questions
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Aptitude test of Reasoning

Q1. What is your name
Ans. 
My name is John Smith.
• Full name is John Smith

• Common name in English-speaking countries

• No middle name or initial
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Q2. What is your hobby
Ans. 
My hobby is photography, capturing moments and telling stories through images.
• I enjoy exploring different locations to find unique shots

• I like experimenting with different lighting techniques

• I often edit my photos to enhance their visual impact
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Q1. TIG full f from ? What is the current?
Ans. 
TIG welding uses a tungsten electrode to create a weld. The current used depends on the material being welded.
• TIG stands for Tungsten Inert Gas welding

• The current used in TIG welding can vary depending on the material thickness and type

• For thin materials, lower currents are typically used, while thicker materials require higher currents

• The current can range from 5 to 400 amps in TIG welding
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Q1. Types of current
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There are two types of current: direct current (DC) and alternating current (AC).
• Direct current (DC) flows in one direction only, typically produced by batteries or power supplies.

• Alternating current (AC) periodically changes direction, commonly used in household electrical systems.

• DC is used in electronic devices like computers and cell phones, while AC powers appliances and lighting.

• Examples of DC include car batteri...read more
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Q2. What is volltage value L-L and L-N
Ans. 
Voltage value L-L is the voltage between two phases, while L-N is the voltage between a phase and neutral.
• Voltage value L-L is also known as line-to-line voltage.

• Voltage value L-N is also known as line-to-neutral voltage.

• L-L voltage is typically higher than L-N voltage in a three-phase system.

• For example, in a 120/208V three-phase system, the L-L voltage is 208V, while the L-N voltage is 120V.
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Q3. Explain about step and step down transformer
Ans. 
A step-up transformer increases voltage while a step-down transformer decreases voltage.
• Step-up transformer increases voltage from primary to secondary winding

• Step-down transformer decreases voltage from primary to secondary winding

• Step-up transformers are used in power transmission to increase voltage for long-distance transmission

• Step-down transformers are used in power distribution to decrease voltage for consumer u...read more
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