Jio Field Engineer Interview Questions and Answers

The water-cement ratio (w/c) of M20 grade concrete is typically 0.45.

• The w/c ratio is the ratio of the weight of water to the weight of cement in a concrete mix.

• For M20 grade concrete, the w/c ratio is generally recommended to be 0.45.

• This means that for every 1 kg of cement, 0.45 kg of water is used.

• The w/c ratio affects the strength, workability, and durability of the concrete mix.

The gauge of binding wire refers to its thickness or diameter.

• The gauge of binding wire is determined by its diameter.

• It is commonly measured using the American Wire Gauge (AWG) system.

• Thicker wires have lower gauge numbers, while thinner wires have higher gauge numbers.

• For example, a binding wire with a gauge of 16 is thicker than a wire with a gauge of 22.

Mix design is the process of determining the proportions of ingredients in a concrete mixture to achieve the desired properties.

• Mix design involves selecting the type and proportion of cement, aggregates, water, and admixtures.

• It considers factors such as strength, workability, durability, and economy.

• The design is based on laboratory testing and analysis of materials.

• Example: A mix design for a high-strength conc...read more

Low throughput in 4G can be caused by various factors.

• Interference from other devices or networks

• Limited bandwidth

• Distance from cell tower

• Congestion in the network

• Hardware or software issues

• Inadequate backhaul capacity

• Poor signal strength

• Inefficient network architecture

Transistors are used to amplify or switch electronic signals in various electronic devices.

• Transistors are used in amplifiers, oscillators, and digital circuits.

• They can be used to amplify weak signals, such as in a radio receiver.

• Transistors can also be used as switches, turning on and off electronic circuits.

• Examples of devices that use transistors include computers, televisions, and smartphones.

Integrated circuit is a miniaturized electronic circuit consisting of active and passive components on a single semiconductor chip.

• ICs are used in almost all electronic devices, from smartphones to computers to cars.

• They are used to perform a variety of functions, such as amplification, switching, and signal processing.

• ICs have revolutionized the electronics industry by making devices smaller, faster, and more eff...read more

LED stands for Light Emitting Diode. It is a semiconductor device that emits light when an electric current is passed through it.

• LEDs are energy-efficient and have a longer lifespan compared to traditional incandescent bulbs.

• They are commonly used in electronic devices, traffic lights, and automotive lighting.

• LEDs work by converting electrical energy into light energy through a process called electroluminescence.

• T...read more

A photo diode is a semiconductor device that converts light into electrical current. Photo emissivity is the ability of a material to emit electrons when exposed to light.

• Photo diodes are commonly used in optical communication systems and light sensors.

• Photo emissivity is important in the design of photoelectric devices such as solar cells and photomultiplier tubes.

• The efficiency of a photoelectric device depends ...read more