Anemometer Question & AnswersMarch 11, 2023 By Wat Electrical This article lists 75 Anemometer MCQs for engineering students. All the Anemometer Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the Anemometer.Anemometers are common weather station instruments. The cup anemometers measures wind speed with three or four cups attached to a rotor. The cup anemometers are easy to maintain & calibrate, suitable for outdoor use, and widely used in weather stations. The vane anemometers measure wind direction and speed using a horizontal vane and vertical tail. The vane anemometers are suitable for outdoor use, widely used in weather stations and HVAC systems. The hot-wire anemometers measure air velocity by measuring the electrical resistance of a heated wire as it is cooled by airflow. The measurement range of hot wire anemometers is 0-800 ft/min, and these anemometers are highly sensitive and suitable for low-velocity airflows. The pitot tube anemometers measure airspeed by measuring the difference between total pressure and static pressure in a tube and its measurement range is 0-120 mph. This anemometer is suitable for use in HVAC systems, and aircraft, and it requires calibration to account for air density and altitude. 1). The rotating cups driven by wind is a principle of operation of ______________ anemometer? Cup anemometer Hot-wire anemometer Ultrasonic anemometer In-speed vortex anemometer None Hint2). Which one of the following is a non-mechanical type of anemometer? Cup anemometer Hot-wire anemometer Plate anemometer Tube anemometer None Hint3). The surface anemometers typically measure wind from ________________ mph? 0-150 mph 0-250 mph 0-100 mph 0-50 mph None Hint4). The surface anemometers generally accurate to within _______________ percentage of actual wind speed? 1-50% 1-100% 1-3% 1-20% None Hint5). The thin wire heated to constant temperature, exposed to wind is a principle of operation of ______________ anemometer? Cup anemometer Hot-wire anemometer Ultrasonic anemometer In-speed vortex anemometer None Hint6). Which one of the following anemometers used for collecting data on atmospheric circulation? Cup anemometer Hot-wire anemometer Surface anemometer Upper air anemometer None Hint7). Which one of the following anemometer measures winds at higher altitudes? Cup anemometer Hot-wire anemometer Surface anemometer Upper air anemometer None Hint8). The upper air anemometers typically measure wind from ________________ mph? 0-150 mph 0-200 mph 0-100 mph 0-50 mph None Hint9). Which one of the following anemometers comes under pressure anemometer? Cup anemometer Hot-wire anemometer Plate anemometer Ultrasonic anemometer None Hint10). The accuracy of Davis 6410 anemometer is _________________ mph? 1 mph 0.5 mph 0.05 mph 4.5 mph None Hint11). What is the standard form of CTA? Common Temperature Anemometer Constant Temperature Anemometer Constant Transformer Anemometer Common Transducer Anemometer None Hint12). Which one of the following measures total pressure and static pressure? Pitot tube Hot-wire Kiel probe LDA None Hint13). The response time is slow in ____________________ anemometer? Constant current Constant voltage Constant temperature Constant frequency None Hint14). In __________________ anemometer, the measurement range is low to medium fluid velocities? Constant current Constant voltage Constant temperature Constant frequency None Hint15). Which one of the following measures wind directions? Anemometer Wind vane Energy meter Sonic anemometer None Hint16). Which one of the following measures wind speeds by counting rotations of three or four cups mounted on vertical axis? Traditional cup anemometer Vertical cup anemometer Magnetic cup anemometer Heated cup anemometer None Hint17). Which one of the following is a formula of cup anemometer? V=(2*pi*r*N)/60 V=K*Vmax B=0.836*(V/0.3)^1.5 P=0.00256*V^2 None Hint18). What is the standard form of LIDAR? Light Detection and Ranging Light Detection and Resistor Light Detection and Regulator Line Detection and Ranging None Hint19). The temperature dependency is high in _________________ anemometer? Constant current Constant voltage Constant temperature Constant frequency None Hint20). The accuracy of in-speed vortex anemometer is _________________ mph? 1.25 mph 0.5 mph 0.05 mph 4.5 mph None HintAnemometer MCQ for Quiz21). Which one of the following measures wind speeds and/or direction? Sensor Signal amplifier Signal processor Display None HintRead more about Sensors22). The Persian scientist Abu Raihan Al-Bruni is an inventor of ________________? Simple wind vane Hemispherical cup anemometer Pressure tube anemometer Smeatonian anemometer None Hint23). The maximum velocity range of HS-LDA-2 model is __________________ m/s? 2000 m/s 0.01 m/s 0.03 m/s 4000 m/s None Hint24). Which one of the following measures the doppler shift of laser light? Pitot tube Hot-wire Kiel probe LDA None Hint25). Which one of the following measures wind speeds by counting rotations of three or four cups mounted on horizontal axis? Traditional cup anemometer Vertical cup anemometer Magnetic cup anemometer Heated cup anemometer None Hint26). Which one of the following is a formula of Beaufort scale anemometer? V=(2*pi*r*N)/60 V=K*Vmax B=0.836*(V/0.3)^1.5 P=0.00256*V^2 None Hint27). Who is the inventor of sonic anemometer? Jon S.Allen Gerd W. H. Schreiber & G. Sutton George Thomas Robinson Leon Bollee None Hint28). What is the standard form of LDA? Laser Doppler Analog Light Doppler Anemometer Laser Doppler Anemometer Line Doppler Anemometer None Hint29). Which one of the following reduces wind speed and/or direction measurements over time? Data logger Signal amplifier Signal processor Display None Hint30). The wind range of lacrosse technology 308-1414B anemometer is ____________________? 0-99 mph 0-200 mph 0-999 mph 0-909 mph None Hint31). Which one of the following measures dynamic pressures in multiple directions? Pitot tube Hot-wire Kiel probe LDA None Hint32). Which one of the following measures wind speed and direction by bouncing radio waves off moving air molecules? Anemometer Doppler radar Energy meter Sonic anemometer None Hint33). Which one of the following measures wind speeds by counting rotations of ping pong ball or other light weight sphere mounted on a vertical axis? Ping pong ball anemometer Vertical cup anemometer Magnetic cup anemometer Heated cup anemometer None Hint34). The _________________ anemometer measures wind speed by counting rotations of a horizontal axis windmill? Windmill anemometer Ping pong anemometer Cup anemometer Pressure anemometer None Hint35). Which one of the following measures wind speeds by continuous rotations of cup? Wind vane Pitot tube Energy meter Cup anemometer None Hint36). Which one of the following is a formula of vane anemometer? V=(2*pi*r*N)/60 V=K*Vmax B=0.836*(V/0.3)^1.5 P=0.00256*V^2 None Hint37). Which one of the following amplifies electrical signal generated by sensor? Power supply Signal amplifier Signal processor Display None Hint38). The John Thomas Romney Robinson is an inventor of ________________? Simple wind vane Hemispherical cup anemometer Pressure tube anemometer Smeatonian anemometer None Hint39). The maximum velocity range of HS-LDA-1 model is __________________ m/s? 2000 m/s 0.01 m/s 0.03 m/s 400 m/s None Hint40). Which one of the following is a type of hot wire anemometer? Testo 425 Gill wind sonic MKII Vaisala WXT520 RM young 81000 ultrasonic None HintAnemometer MCQ for Interviews41). The velocity resolution of LDA-DC3 model is __________________ m/s? 100 m/s 0.01 m/s 0.03 m/s 400 m/s None Hint42). Which one of the following is a formula of wind pressure anemometer? V=(2*pi*r*N)/60 V=K*Vmax B=0.836*(V/0.3)^1.5 P=0.00256*V^2 None Hint43). The sonic waves emitted and received between two or three transducers is a measurement principle of ________________ anemometer? Cup anemometer Hot-wire anemometer Ultrasonic anemometer Upper-air anemometer None Hint44). Which one of the following allows anemometer to communicate with other devices? Data logger Signal amplifier Signal processor Communication interface None Hint45). Which one of the following measures wind speeds by measuring pressure? Wind vane Pitot tube Energy meter Ultrasonic anemometer None Hint46). Which one of the following measures wind speeds by counting rotations of cups with magnets mounted on horizontal axis? Traditional cup anemometer Vertical cup anemometer Magnetic cup anemometer Heated cup anemometer None Hint47). Which one of the following converts amplified signal into a usable form? Power supply Signal amplifier Signal processor Display None Hint48). The velocity resolution of LDA-DC2 model is __________________ m/s? 100 m/s 0.01 m/s 0.02 m/s 400 m/s None Hint49). The Henri Pitot is an inventor of ________________ anemometer? Simple wind vane Hemispherical cup anemometer Pressure tube anemometer Smeatonian anemometer None Hint50). Which one of the following is a type of cup anemometer? Testo 425 Gill wind sonic MKII Vaisala WXT520 In-speed vortex None Hint51). The velocity resolution of LDA-DC1 model is __________________ m/s? 100 m/s 0.01 m/s 300 m/s 400 m/s None Hint52). The cooling effect of the wind on a heated wire is a measurement principle of ________________ anemometer? Cup anemometer Hot-wire anemometer Ultrasonic anemometer In-speed vortex anemometer None Hint53). Who is the inventor of hot-wire anemometer? Jon S. Allen John Smeaton George Thomas Robinson Leon Bollee None Hint54). The maximum velocity range of HS-LDA-3 model is __________________ m/s? 2000 m/s 0.01 m/s 0.03 m/s 6000 m/s None Hint55). What is the standard form of SODAR? Sound Detection and Ranging Sound Detection and Radar Sound Detection and Resistor Single Detection and Ranging None Hint56). The _________________ anemometer measures wind speed by measuring pressure changes caused by the wind? Windmill anemometer Ping pong anemometer Cup anemometer Pressure anemometer None Hint57). Which one of the following shows the wind speed and/or direction measurement to the user? Power supply Signal amplifier Signal processor Display None Hint58). Who is the inventor of Smeatonian anemometer? Henri Pitot John Smeaton George Thomas Robinson Leon Bollee None Hint59). The maximum velocity range of LDA-3 model is __________________? 100 m/s 200 m/s 300 m/s 400 m/s None Hint60). The wind speed range of gill wind sonic MKII anemometer is _________________ m/s? 1-20 m/s 20-30 m/s 40-60 m/s 0-60 m/s None HintAnemometer MCQ for Exams61). The velocity resolution of MC-LDA-2 is ___________________ m/s? 100 m/s 200 m/s 0.02 m/s 400 m/s None Hint62). The figure shown below is a diagram of _________________ anemometer? Cup anemometer Ultrasonic anemometer Hot-wire anemometer Vane anemometer None Hint63). The velocity resolution of MC-LDA-3 is ___________________ m/s? 100 m/s 0.03 m/s 0.02 m/s 400 m/s None Hint64). Who is the inventor of pitot static tube anemometer? Henri Pitot John Smeaton George Thomas Robinson Leon Bollee None Hint65). Which one of the following measures fluid velocities by analysing particle motion? PIV Hot-wire Kiel probe LDA None Hint66). The maximum velocity range of LDA-2 model is __________________? 100 m/s 200 m/s 300 m/s 400 m/s None Hint67). The velocity resolution of MC-LDA-1 is ___________________ m/s? 100 m/s 200 m/s 0.01 m/s 400 m/s None Hint68). Who is the inventor of Robinson anemometer? Henri Pitot John Smeaton George Thomas Robinson Leon Bollee None Hint69). Which one of the following provides electrical power to the anemometer? Power supply Signal amplifier Signal processor Display None Hint70). The wind speed range of KANOMAX 6115 anemometer is _________________ m/s? 1-20 m/s 0-30 m/s 40-60 m/s 0-60 m/s None Hint71). The maximum velocity range of LDA-1 model is __________________? 100 m/s 200 m/s 300 m/s 400 m/s None Hint72). Which one of the following measures wind speeds by counting rotations of cups with heating elements that melt falling snow or ice? Traditional cup anemometer Vertical cup anemometer Magnetic cup anemometer Heated cup anemometer None Hint73). Which one of the following measures wind speed and direction using sound waves? Anemometer Wind vane Energy meter Sonic anemometer None Hint74). Which one of the following is a wind measuring instrument? Wind estimation Rotating anemometers Wind pressure anemometers All of the above None Hint75). What is the standard form of CCA? Constant Common Anemometer Constant Current Anemometer Constant Controller Anemometer Common Current Anemometer None HintFor More MCQsQ Meter Question & AnswersTachometer Questions & Answers Time's up
