MP Police SI (Technical) Mock Test - 8 - MP Police SI MCQ

Let the radius and height of cone be and , respectively.

So, radius of sphere will be as well.

Given expression:

∴ The value of ? is 4.

In science, a push or a pull on an object is called force.

Pressure - It is an expression of force exerted on a surface per unit area.

Gravitation - It is a force that exists among all material objects in the universe.

Force - A push or a pull on an object is called a force.

Friction - It is the force that opposes the relative motion between the two surfaces of objects in contact.

Let another number  

As we know,

LCM  H C F  Product of both the numbers

Given:

Compound interest

years

We know that,

Where, Amount, Principal amount, Rate of interest, number of times its getting compounded, time

Now,

Taking cube root

Rate of interest is .

Given:

and

HCF by Prime Factorization Method

and

If we calculate the HCF of these two numbers

then we can see highest common factors are

Required HCF is

Given:

Thickness of tube is cm

Outer radius cm

Length of tube (height of tube) m cm

As we know,

Volume of cylinder

The volume of material used to make a cylindrical tube

Thickness

Where, External Radius, Internal Radius

We have cm

And thickness cm

So, Internal radius cm

Volume of material

The volume of material is cm.

In ΔABC,

⇒ ∠ABC + ∠BAC + ∠ACB = 180°

⇒ 75° + ∠BAC + 35° = 180°

⇒ ∠BAC = 180° – 110°

⇒ ∠BAC = 70°

∴ ∠BAP = 35°

In ΔABQ,

⇒ ∠ABQ + ∠AQB + ∠BAQ = 180°

⇒ 75° + 90° + ∠BAQ = 180°

⇒ ∠BAQ = 180° – 165°

⇒ ∠BAQ = 15°

∴ ∠BAP = ∠BAQ + ∠PAQ

⇒ 35° = 15° + ∠PAQ

⇒ ∠PAQ = 20°

Heller's test is a chemical test that shows that strong acids cause the denaturation of precipitated proteins. Concentrated nitric acid is added to a protein solution from the side of the test tube to form two layers. A white ring appears between the two layers if the test is positive. It helps to detect the presence of protein in a patient's urine.

The priority of the functional groups is decided first.

• Carboxylic group is the prior group and the suffix will be - oic acid.
• There are 6 carbon atoms in the longest chain so the main alkane chain will be hexan.
• In the 5th position, there is a carbonyl substitution so the prefix will be 5-oxo.
• The IUPAC name becomes 5-oxohexanoic acid.

So, the IUPAC name of the compound  is 5-oxohexanoic acid.

H.C.F. of given fractions

L.C.M. of the given fractions

Sum = Rs. 2000, Time = 1 year, Rate = 10%

Where, Amount, Principal, Time,

Compound interest and rate of interest

According to the question,

, years

On substracting 3 kg 178 g from 8 kg 350 g= 8 kg 350 g - 3 kg 178 g = 5 kg 172 g

Plasticizers (UK: plasticisers) or dispersants are additives that increase the plasticity or fluidity of a material. The dominant applications are for plastics, especially polyvinyl chloride (PVC).

The properties of other materials are also improved when blended with plasticizers including concrete, clays and related products.

DOP (Dioctyl pthalate) used in flooring materials, carpets, notebook covers and high explosives, such as Semtex.

DBP (Di-n-butyl pthalate) used for cellulose plastics, food wraps, adhesives, perfumes and cosmetics.

Given:

Principal Rs.

year

year

year

We know that,

Simple Interest

Where,

Principal

Rate of Interest

Time period

Now, Substitute the values in the formula,

Simple Interest

Rs.

Total amount Simple Interest

Rs.

Total Energy of Electron = (Potential energy) + (Kinetic energy).

The potential Energy of electron is negative due to the reaction between the nucleus and electron and have a greater magnitude than Kinetic energy.

While K.E. is always positive due to the presence of the square of velocity. Therefore the total Energy is -ve.

So, the total energy of the electron revolving around the nucleus is less than zero.

The essential component of amalgam is mercury .

It may be a liquid, or a solid, depending upon the proportion of mercury.

Silver-mercury amalgams are an important dental filling material used to fill teeth cavities.

In the extraction of gold from its ore the Gold-mercury amalgam is used widely.

Teflon is used for lubrication and as an insulator, and because Polytetrafluoroethylene (PTFE) reduces friction and because of high resistivity it works as a good insulator too. Teflon is manufactured by heating tetrafluoroethene with a free radical or pursue catalyst at high pressures. It has high flexural strength, even in low temperature, high electrical resistance, and a low coefficient of friction.

Where, is Polytetrafluoroethylene (PTFE) or Teflon.

Given,

hours sec seconds

∴ Required Fraction

Conservation of linear momentum:

• As there is no net external force on the system or an isolated system, so momentum before the collision and after the collision will remain the same.
• According to momentum conservation, if there is no external force on the system then the final momentum of any system is equal to the initial momentum of the system.

Linear Momentum before the collision Linear Momentum after the collision

So according to conservation of linear momentum, after collision neither object loses nor gain any momentum.

So, the correct option is net linear momentum remains unchanged.

Phenol is hydrogenated to cyclohexanol,

Total expenditure of all sports = 16 + 128 + 72 + 23 + 51 + 10 = 300 crores
Expenditure on football = 51 crores
300 crores represents = 360°
1 crore represents =
51 crores will represent = 1.2 × 51 = 61.2°

Given:

HCF and product of 2 numbers are 17 and 4624 respectively

Co prime numbers are those numbers that have only 1 as their common factor

Let the numbers be and ; (since 17 is their HCF)

The pairs possible following the condition of co-prime

The numbers are 17 and 272

Sum of their reciprocals

Electronic configuration of Chromium (Cr).

Cr- 1s² 2s² 2p⁶3s²3p⁶4s¹3d⁵

Given:

The hardness of water is due to the calcium and magnesium salts present in it.

Hard water is water that contains cations with a charge of +2, especially Ca2⁺ and Mg2⁺. These ions do not pose any health threat, but they can engage in reactions that developed hard water.