KPSC ITI JTO Workshop Calculation and Science Question Papers

11) The square root of 0.9 is

Answer is:

0.948

12) 20 divisions of a vernier scale, coincide with 19th divisions of main scale. Each main scale division is equal to 1 mm. What is vernier least count?

Answer is:

0.05 mm

13) Seath for fitter, turner and welder in an industrial training institute are in the ratio of "4:5:6". There is a proposal to increase these seats by 25%, 40% and 50% respectively. The ratio of increased seat is

Answer is:

5:7:9

14) Absolute pressure is equals to

Answer is:

gauge pressure + atmospheric pressure

Explanation:

Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. The atmospheric pressure at sea level (above absolute zero) is called standard atmospheric pressure and its value is given as follows:

Standard atmospheric pressure = 101.3 kN/m² or kPa (1 kN/m² = 1 kPa)
= 10.3 m of water
= 760 mm of Hg
Atmospheric pressure = Absolute pressure - Gauge pressure

Gauge Pressure: The pressure measured with the help of a pressure gauge is known as gauge pressure, in which atmospheric pressure is taken as datum. All the pressure gauges record the difference between the actual pressure and the atmospheric pressure. The actual pressure is known as absolute pressure. Mathematically

Absolute pressure= Atmospheric pressure + Gauge pressure (Positive)

Vacuum pressure: For pressures below atmospheric, the gauge pressure will be negative. This negative gauge pressure is known as vacuum pressure. Therefore

Absolute pressure = Atmospheric pressure - Negative gauge pressure or vacuum pressure

15) A solid metal cylinder of radius 12 cm and height of 18 cm is melted and cast into spheres of 3 cm radius. The number of spheres that can be made is

Answer is:

KPSC ITI JTO Workshop Calculation and Science Question Papers - 2018 with Answer Key

11) The square root of 0.9 is

0.948

12) 20 divisions of a vernier scale, coincide with 19th divisions of main scale. Each main scale division is equal to 1 mm. What is vernier least count?

0.05 mm

13) Seath for fitter, turner and welder in an industrial training institute are in the ratio of "4:5:6". There is a proposal to increase these seats by 25%, 40% and 50% respectively. The ratio of increased seat is

5:7:9

14) Absolute pressure is equals to

gauge pressure + atmospheric pressure

15) A solid metal cylinder of radius 12 cm and height of 18 cm is melted and cast into spheres of 3 cm radius. The number of spheres that can be made is

72