10+ Contractor Interview Questions and Answers

Auditing cash and bad debt, cash flow statement, and examples under each heading

• Auditing cash involves verifying physical cash on hand, reconciling bank statements, and examining cash transactions for accuracy

• Auditing bad debt entails reviewing accounts receivable for potential uncollectible amounts and assessing the adequacy of the allowance for doubtful accounts

• Cash flow statement shows the inflows and outflows of cash during a specific period, categorized into operating, i...read more

A battery is a device that converts chemical energy into electrical energy. Electrolyte is a substance that conducts electricity.

• A battery is composed of one or more electrochemical cells.

• It stores energy in the form of chemical potential energy.

• When a battery is connected to a circuit, a chemical reaction occurs within the battery, producing a flow of electrons.

• The electrolyte in a battery is a liquid or gel-like substance that allows ions to move between the electrodes.

• Comm...read more

Quality refers to the degree of excellence or superiority of a product or service.

• Quality is meeting or exceeding customer expectations

• It involves consistency, reliability, and durability

• Quality can be measured through various metrics such as defect rate, customer satisfaction, and on-time delivery

• Examples of quality products include Apple iPhones, Toyota cars, and Nike shoes

Calibration is the process of adjusting or verifying the accuracy of an instrument or tool.

• Calibration ensures that an instrument or tool is accurate and reliable.

• It involves comparing the readings of the instrument to a known standard.

• Calibration is important in fields such as engineering, manufacturing, and science.

• Examples of instruments that require calibration include thermometers, scales, and pH meters.

DGDets is a software tool used by contractors for project management and documentation.

• DGDets helps contractors organize and track project details such as schedules, budgets, and resources.

• It allows contractors to create and manage project documentation, including drawings, specifications, and contracts.

• The software provides features for collaboration and communication among team members.

• DGDets can generate reports and analytics to monitor project progress and performance.

• It ...read more

Relay is an electrically operated switch that uses an electromagnet to mechanically operate a switch.

• Relays are used to control high voltage circuits with low voltage signals.

• They can be used for various applications such as controlling motors, lights, and solenoids.

• Relays have two circuits: the control circuit and the load circuit.

• When the control circuit is energized, it closes the load circuit.

• Relays can be normally open (NO) or normally closed (NC).

Authentication is the process of verifying the identity of a user or system.

• Authentication typically involves the use of credentials such as passwords, biometrics, or security tokens.

• Multi-factor authentication adds an extra layer of security by requiring multiple forms of verification.

• Authentication protocols like OAuth and SAML are commonly used for secure access to online services.

• Authentication can be performed locally (e.g. logging into a computer) or remotely (e.g. acce...read more

Relay is an electrical switch that opens and closes under the control of another electrical circuit.

• Relays are used to control high voltage circuits with low voltage signals.

• They are used in various applications such as in automobiles, industrial automation, and home appliances.

• Relays can be classified into electromechanical relays, solid-state relays, and reed relays.

• The operating function of a relay is to switch a circuit on or off by opening or closing its contacts.

• Relays ...read more

Websocket is a communication protocol that provides full-duplex communication channels over a single TCP connection.

• Websocket allows for real-time, two-way communication between a client and a server.

• It is commonly used in web applications for features like live chat, real-time updates, and online gaming.

• Websocket connections are initiated through a handshake process and can be kept open for as long as needed.

• Popular libraries for working with websockets include Socket.IO, ws...read more

Relays provide electrical isolation and allow for control of high voltage/current circuits with low voltage signals.

• Relays can switch high voltage/current circuits with low voltage signals

• Relays provide electrical isolation between the control circuit and the load circuit

• Relays can be used for various applications such as motor control, lighting control, and automation systems

• Relays can be easily replaced if they fail, without the need for specialized equipment

• Relays can be u...read more