The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called A) Wet bulb temperatureB) Dew point temperatureC) Dry bulb temperatureD) None of these Correct Answer is C) Dry bulb temperature The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called Explanation: The temperature of air recorded by a thermometer, when it is not affected by the moisture present in the air, is called dry bulb temperature. It is one of the primary measures of atmospheric conditions…

Thermal Insulating Capacity of a Substance is A) Inversely proportional to specific heatB) Inversely proportional to density of substanceC) Directly proportional to the thermal conductivityD) All of the above Correct Answer is D) All of the above Thermal Insulating Capacity of a Substance is Explanation: Thermal diffusivity is an important physical property of materials that describes how quickly heat can transfer through a substance. It is defined as the ratio of thermal conductivity to heat capacity per unit volume. In this article, we will discuss what thermal diffusivity is and how it is measured. What is thermal diffusivity? Thermal diffusivity…

Which of the following meters is not associated with viscosity A) EnglerB) Say boltC) Red woodD) Flowmeter Correct Answer is D) Flowmeter Which of the following meters is not associated with viscosity Explanation: Viscosity is a property of fluids that measures the resistance of a fluid to flow. It is an important parameter in various industries, including oil and gas, pharmaceuticals, and food processing. Viscosity can be measured using various instruments, including viscometers and rheometers. In this article, we will discuss which of the following meters is not associated with viscosity. Rotational viscometer A rotational viscometer is a type of…

The under voltage relay can be used for A) MotorsB) TransformersC) BusbarsD) GeneratorsE) All of the above Correct Answer is E) All of the above The under voltage relay can be used for Explanation: The under voltage relay is an electrical device used to protect electrical equipment from damage due to low voltage conditions. It operates by monitoring the voltage level in a system and tripping the circuit when the voltage drops below a predetermined threshold value. In this article, we will explore the various applications of under voltage relays. Protecting motors Motors are essential components in industrial applications, and…

Mutual authentication can prevent which type of attack? A) Wireless poisoningB) Wireless IP spoofingC) Wireless sniffingD) Man-in-the-middle Correct Answer is D) Man-in-the-middle Mutual authentication can prevent which type of attack? Explanation: Mutual authentication is a security mechanism that requires both parties in a communication to authenticate each other's identities. It enhances security by preventing unauthorized access, as each party must prove their identity before any data is exchanged. There are several types of attacks that mutual authentication can prevent. Preventing Man-in-the-Middle Attacks: One of the main types of attacks that mutual authentication can prevent is man-in-the-middle (MITM) attacks. MITM attacks…

Which methods can be used to implement multifactor authentication? A) VPNs and VLANsB) IDS and IPSC) Tokens and hashesD) Passwords and fingerprints Correct Answer is D) Passwords and fingerprints Which methods can be used to implement multifactor authentication? Explanation: Multifactor authentication (MFA) is a security mechanism that requires users to provide multiple forms of identification to access a system or resource. It enhances security by adding an extra layer of protection against unauthorized access, as attackers would need to bypass more than one form of authentication to gain access to sensitive information or resources. There are several methods that can…

Which statement describes cybersecurity? A) It is a framework for security policy development.B) It is a standard-based model for developing firewall technologies to fight against cybercriminals.C) It is the name of a comprehensive security application for end users to protect workstations from being attacked.D) It is an ongoing effort to protect Internet-connected systems and the data associated with those systems from unauthorized use or harm. Correct Answer is D) It is an ongoing effort to protect Internet-connected systems and the data associated with those systems from unauthorized use or harm. Which statement describes cybersecurity? Explanation: Cybersecurity is the practice of…

Which two statements characterize wireless network security? (Choose two.) A) An attacker needs physical access to at least one network device to launch an attack.B) Wireless networks offer the same security features as wired networks.C) Some RF channels provide automatic encryption of wireless data.D) Using the default IP address on an access point makes hacking easierE) With SSID broadcast disabled, an attacker must know the SSID to connect. Correct Answer is: D, and E Which two statements characterize wireless network security? (Choose two.) Explanation: Wireless network security is essential to ensure that data transmitted over wireless networks remains confidential and…

Which method is used to check the integrity of data? A) BackupB) AuthenticationC) EncryptionD) Checksum Correct Answer is D) Checksum Which method is used to check the integrity of data? Explanation: Data integrity is the assurance that the data remains accurate, complete, and consistent throughout its entire lifecycle. Ensuring data integrity is crucial in maintaining data quality and reliability. Various methods are used to check the integrity of data, including checksum, hashing, and digital signatures. Checksum A checksum is a mathematical value calculated from a sequence of data. It is used to verify the integrity of data and ensure that…