RCFL MT Mechanical Mock Test - 1 - Mechanical Engineering MCQ

Young's modulus shows the rigidity of the material. when the temperature increases, the material starts to become soft. Therefore elasticity decreases with rise in temperature.

Carburettor. Carburettor, also spelled carburettor, supplies a spark-ignition engine with a mixture of fuel and air. Components of carburetors usually include a storage chamber for liquid fuel, a choke, an idling (or slow-running) jet, a main jet, a venturi-shaped air-flow restriction.

Electromagnetic radiation travels in wave packets known as photons that consist of propagating electric and magnetic fields. These photons undergo absorption when they transfer energy to atoms within a substance they are striking instead of transmitting through or reflecting off of it.

Two objects are in thermal equilibrium if they are in close contact that allows either to gain energy from the other, but nevertheless, no net energy is transferred between them. Even when not in contact, they are in thermal equilibrium if, when they are placed in contact, no net energy is transferred between them.

Lathes are the principal machine tool used in turning. Milling operations are operations where the cutting tool rotates to bring cutting edges to bear against the workpiece. Milling machines are the principal machine tool used in milling.

The failure or yielding occurs when the strain energy per unit volume in a strained material reaches the limiting strain energy (or strain energy at the yield point) per unit volume as determined from a simple tension test.

With an increase in temperature, there is typically an increase in the molecular interchange as molecules move faster in higher temperatures. The gas viscosity will increase with temperature.

Broaches are shaped similar to a saw, except the height of the teeth increases over the length of the tool. The rise per tooth (RPT), also known as the step or feed per tooth, determines the amount of material removed and the size of the chip.

From the options given, it can be guessed that the parts labelled P, Q, R, S can be ordered to form a meaningful sentence as
It is easier → for men→ to venture into space → than to explore→beneath their feet.
so order is QPSR.

Engender is to cause or create.

As we can say that ,
Tangible means available physically, concretely, elusive is something that eludes, i.e, is difficult to catch, touch or understand, palpable is a synonym to tangible.
Hence , Elusive is antonym word of Tangible . 

Factorise the terms
5 × √5 × 3×√5 = 5×3×5 =75

Let length of slower train-1 be L₁ and length of faster train-2 be L₂.
Relative speed when trains run in opposite directions = (54 + 36) × 5/18 = 25 m/s
So, 10 = (L₁ + L₂)/25
L₁ + L₂ = 250 ........(1)
Relative speed when trains run in the same direction = (54 - 36) × 5/18 = 5 m/s
Now,
20 = L₁/5
L₁ = 100 m ..........(2)
Put (2) in (1),
L₂ = 150 m

(2√3 +√3) = 3√3       ( By addition of like terms )

So option C is correct answer. 

And we know that the value of 11√2 is greater than 15 so it's value will be positive, And also sum or differences of rational and irrational is irrational

From Statement I:
M is shorter than only P. K is taller than L and N.
Case1: P > M > K > N > L
Case2: P > M > K > L > N
Here, we cannot determine who is the shortest, either L or N is the shortest person. Also, we don’t know the position of O here.
From Statement II:
We have, M is shorter than both P and L. K is shorter than P but taller than L. O is shorter than both K and M. P is not tallest.
N > P > K > L > M > O
Here, O is the shortest person.
Hence option B is correct.

Logic: The alphabet that comes first alphabetically, comes first in the dictionary.

So, the correct arrangement should be:

2. Subtle.

4. Sucres.

3. Sudoku.

1. Sugary.

5. Sullen.

Hence, the correct answer is "2, 4, 3, 1, 5".

As Cloth is made in a Mill, similarly Newspaper is printed in press.

The synonym of arid, parched and droughty is dry.

The All four part of the the figure is identical. So after folding the 2 times of the figure, it will become figure like option C.