A. Above 20 KHz
B. Above 200 KHz
C. Above 2 KHz
D. Below 20 KHz
✅ The correct answer is option A.
What is the normal temperature of human being on Kelvin scale?
A. 290
B. 300
C. 310
D. 320
✅ The correct answer is option C.
Which among the following is known as first electronic amplification device?
A. Diode
B. Triode Vaccum Tubes
C. Vacuum Tubes
D. bipolar transistors
✅ The correct answer is option B.
Which among the following temperature scale is based upon absolute zero?
A. Celsius
B. Fahrenheit
C. Kelvin
D. Rankine
✅ The correct answer is option C.
Which of the following is an instrument for measuring electric charge or electrical potential difference?
A. Ammeter
B. Voltmeter
C. Electrometer
D. ohmmeter
✅ The correct answer is option C.
Edwin Howard Armstrong was an inventor of which of the following technologies?
A. Television
B. Compact Discs
C. FM Radio
D. Broadband
✅ The correct answer is option C.
Parallax of one arc second‖ is a unit of which of the following?
A. Time
B. Volume
C. Length
D. Speed
✅ The correct answer is option C.
Which among the following comes under the study area of Psychrometrics?
A. Relative Humidity
B. physical and thermodynamic properties of gas-vapor mixtures
C. theory and technique of educational and psychological measurement
D. Atmospheric Pressure at Colder Regions of the World
✅ The correct answer is option B.
Ballistics is a branch of science that deals with which of the following?
A. Geologic study of the behavior of soil and rock
B. Motion of multibody systems subjected to unilateral contacts and friction
C. Flight, behavior, and effects of projectiles
D. Kinetic energy of a system
✅ The correct answer is option C.
SOFAR is a phenomenon which plays an important role in submarine warfare & also known as deep sound channel. Which of the following is correct full form of SOFAR?
A. Sound Field Radio Ranging
B. Sound Fixing and Altering Range
C. Sound Fixing and Ranging channel
D. Sound Fixing and Auto Reflection
✅ The correct answer is option C.