Dcm Architects Electrician Interview Questions and Answers

Initial data required to build a Gear box

• Design specifications and requirements

• Type of gear system (e.g. spur, helical, bevel, etc.)

• Power and torque requirements

• Gear ratios and speed requirements

• Material selection for gears and housing

• Lubrication system design

• Manufacturing and assembly processes

• Quality control and testing procedures

The material chosen for the shaft and gear depends on factors such as load, speed, and operating conditions.

• Consider the load and speed requirements of the shaft and gear.

• Evaluate the operating conditions, such as temperature and corrosion resistance.

• Common materials for shafts include steel, stainless steel, and titanium.

• Common materials for gears include steel, cast iron, and bronze.

• The material selection should ensu...read more

An induction motor works by inducing a magnetic field in the rotor through electromagnetic induction.

• The stator creates a rotating magnetic field

• This induces a current in the rotor, creating a magnetic field

• The interaction of the two fields causes the rotor to rotate

• Induction motors are commonly used in industrial and residential applications

DC motors use direct current to produce rotational motion while induction motors use alternating current and electromagnetic induction.

• DC motors have a commutator and brushes while induction motors do not.

• DC motors have a constant speed while induction motors have a variable speed.

• DC motors are more efficient at low speeds while induction motors are more efficient at high speeds.

• DC motors are commonly used in small app...read more

Arc welding machine is operated by connecting the electrode holder to the positive terminal and the workpiece to the negative terminal.

• Ensure the machine is turned off before connecting the cables.

• Select the appropriate electrode for the material being welded.

• Adjust the amperage according to the thickness of the material.

• Hold the electrode holder at a 90-degree angle to the workpiece.

• Strike an arc by tapping the electr...read more

AHU should be worked until the desired temperature and humidity levels are achieved.

• Check the temperature and humidity levels required for the space being served by the AHU.

• Adjust the AHU settings to achieve the desired temperature and humidity levels.

• Monitor the AHU performance to ensure it is maintaining the desired levels.

• Perform regular maintenance on the AHU to keep it functioning properly.

• Consult with a licensed ...read more