General Science

Q1861.Consider the following statements. 1. The heart vibrates at infrasonic. 2. The speed of sound is more in gas than in liquid and solid. 3. Mach number is used to describe the speed of sound. 4. Ultrasonic sound has frequency more than 20,000 Hz. Of these statements.

Q1862.Choose the smallest memory size unit.

Q1863.Which of the following elements is added to iron to produce steel which can resist high temperature, have high hardness and abrasion resistance?

Q1864.Assertion (A): A jet aircraft moving at mach number equal to 1 travels faster at an altitude of 15 km than while moving at mach number equal to 1 near the sea level. Reason (R): The velocity of sound depends on the temperature of the surrounding medium. Code

Q1865.1 MB memory is

Q1866.The important metal used with iron to make it rust free

Q1867.Assertion (A): Reveraberation mainly feels in large churches and in other large buildings. Reason (R): The walls, roof and ground may cause multiple sound reflections. Code

Q1868.In computer language how many bytes are there in one megabyte?

Q1869.Steel is further processed to obtain stainless steel by adding some element. Which one of the following is not used for this purpose?

Q1870.Consider the following statements. 1. A widely used musical scale called diatomic scale has seven frequencies. 2. The frequency of the tone Sa is 256 Hz and that of Ni is 512 Hz. Which of the statements given above is/are correct?

Q1871.A million bytes is approximately

Q1872.The important metal used with iron produce stainless steel is

Q1873.Assertion (A): Radio waves bend in a magnetic field. Reason (R): Radio waves are electromagnetic in nature. Code

Q1874.The term MB is used for

Q1875.Which of the following elements are included in stainless steel?

Q1876.Five bulbs each of 100 watt capacity in a tunnel are illuminated continuously for twenty hours. The consumption of electricity will be

Q1877.Unicode encoding scheme represents a character as a group of

Q1878.What is mixed with iron to make stainless steel?

Q1879.The value of 1 kilowatt hour is

Q1880.An exclusively private network used by employees of a company in a single location will be classified as