Diploma Engineer Trainee - DET Interview Questions and Answers for Freshers

The temperature at which a thermostat valve opens depends on the specific application and type of valve.

• Thermostat valves can open at different temperatures depending on the application.

• The opening temperature can range from below freezing to several hundred degrees Fahrenheit.

• The type of valve, such as a wax pellet or bimetallic strip valve, can also affect the opening temperature.

• For example, a thermostat valve in a car engine may open at around 195°F to regulate coolant fl...read more

An engine is a machine that converts energy into mechanical force or motion.

• Engines are used in various applications such as automobiles, aircraft, and power plants.

• They typically work by burning fuel to generate heat, which is then converted into mechanical energy.

• There are different types of engines, including internal combustion engines, steam engines, and electric engines.

• Examples of engines include car engines, jet engines, and steam locomotive engines.

A silencer is a device that reduces the noise produced by a machine or engine.

• Silencers are commonly used in automobiles to reduce the noise produced by the exhaust system.

• They work by using a series of chambers and baffles to absorb and dissipate sound waves.

• Silencers are also used in firearms to reduce the noise of the gunshot.

• They are typically made of metal and can be attached to the end of the barrel.

• Silencers are regulated by law in many countries and require a special ...read more

Different types of casting include sand casting, investment casting, die casting, and continuous casting.

• Sand casting involves pouring molten metal into a sand mold

• Investment casting uses a wax pattern that is coated in ceramic and then melted out to create a mold

• Die casting involves injecting molten metal into a mold under high pressure

• Continuous casting is used for producing long lengths of metal with a constant cross-section

A thermostat is a device that regulates temperature by turning heating or cooling systems on or off.

• Thermostat is used to maintain a desired temperature in a room or a building.

• It works by sensing the temperature and then turning the heating or cooling system on or off accordingly.

• Thermostats can be manual or programmable, with the latter allowing users to set different temperatures for different times of the day.

• Examples of thermostats include Nest, Honeywell, and Ecobee.