Q. CNG stands for
(A) Converted Natural Gas
(B) Conduced Natural Gas
(C) Conducted Natural Gas
(D) Compressed Natural Gas
The answer is: (D) Compressed Natural Gas ☑
Q. Which from the following is true for “Sound”?
(A) Sound cannot travel through a vacuum
(B) Sound cannot travel through gases
(C) Sound cannot travel through liquids
(D) Sound cannot travel through solids
The answer is: (A) Sound cannot travel through a vacuum ☑
Q. When white light is passed through a prism, it splits into __________ colours.
(A) 5
(B) 6
(C) 7
(D) 8
The answer is: (B) 6 ☑
Q. 1 nanometer = ?
(A) 10–3 meter
(B) 10–6 meter
(C) 10–9 meter
(D) 10–12 meter
The answer is: (C) 10–9 meter ☑
Q. Instrument used for measuring very high temperature is
(A) Pyroscope
(B) Pyrometer
(C) Seismograph
(D) Xylometer
The answer is: (B) Pyrometer ☑