RCFL MT Mechanical Mock Test - 7 - Mechanical Engineering MCQ

The backing is usually made of a dielectric (usually plastic) which provides good electrical insulation between the wires of the strain gauge and the specimen. Polyimide is the prevalent backing material and is thus the default standard. No extreme operating conditions such as high temperatures are present.

In machining process,

Chip thickness ratio (r) = chip;thickness(t2)}

where, φ = shear angle, α = rake angle

the uncut chip thickness value is less than the chip thickness value; thus chip thickness ratio is less than 1.

The theory assumes that inelastic behaviour or failure is governed by a specified maximum normal strain. 1 Failure will occur at a particular part of a body subjected to an arbitrary state of strain when the normal strain reaches a limiting level.

This is the principle to locate the workpiece firmly so that the required operations like drilling, reaming, etc. can be done.

According to the principle, 3 pins are used in primary datum, 2 pins are used on secondary datum, which is perpendicular to 1st, and 1 in tertiary datum, which arrests 9 degrees of freedom.

Elastic Rubber: 0.5

Wood: Because wood is orthotropic, 12 constants are required to describe elastic behaviour: 3 moduli of elasticity, 3 moduli of rigidity, and 6 Poisson’s ratios (vary from 0.02 to 0.47). These elastic constants vary within and among species and with moisture content and specific gravity.

Copper: 0.33

Steel: 0.27 - 0.30

Crater wear occurs on the rake face of the tool, while flank wear occurs on the relief (flank) face of the tool.

The word cultivated (Adjective) means: Eductated. It’s antonym should be: Crude 

We can say that ,
The above given sentence is given in Passive Voice :-
Use structure “subject + auxiliary + past participle + by + object”
I have been promised a bicycle by my father.
Therefore , option C will be correct answer .

He told us that he had read Milton in a prose translation which he had borrowed from his teacher and enjoyed it.

In 36 hours, there would be a gap of 8 minutes. The two watches would show the same time when
the gap would be exactly 12 hours or 720 minutes.
The no. of 36 hour time frames required to create this gap = 720/8 = 90.
Total time = 90 × 36 = 3240 hours. Since this is divisible by 24, the watches would show 12
noon.

3D definition- A three-dimensional (3D) object is an object with three dimensions: a length, a width, and a height
Since solid figure has length breadth as well as thickness or height so sthe solid figure will be 3d. hence option B is correct.

Diagonal of a room = √(l² + b² + h²)
So the answer = √(20² + 10² + 20²) = √900 = 30 meters
Hence, Option B is correct.

The correct answer is D
as THE RATIO WIL BE
21% of 24700) / (13% of 27300)
=(21*247)/(13*273)
=(3*247)/(13*39)
=(3*19)/(1*39)
=19/13
Ratio = 19:13

Given:

(a + b) : (b + c) : (c + a) = 6 : 7 : 8

a + b + c = 14

Calculaiton:

(a + b) = 6k

(b + c) = 7k

(c + a) = 8k

⇒ 2(a + b + c) = 21k

⇒ 21k = 2 × 14

⇒ 21k = 28

⇒ k = 4/3

⇒ c + a = 8 × 4/3

⇒ c + a = 32/3

As given,

⇒ b + 32/3 = 14

⇒ 3b + 32 = 42

⇒ 3b = 10

∴ b = 10/3

As the young one of a 'cat' is 'kitten' in the same way the young one of 'woman' is 'baby'.

Gadar Party:

• The Indian revolutionary Lala Hardayal went to San Francisco in 1911.
• There he organized the Indians of the same views and established the Hindi Association of America and started the periodical named Gadar. This group was later called the Gadar Party.
• Hence, statement a is correct.
• They wanted to dethrone the British power in India and establish a Republic Government.
• They wanted to achieve this goal by the rebels with the weapons. (not a non-violent group). Hence, statement b is incorrect.
• Accordingly, option 1 is correct.

The correct answer is All of the above.

Key PointsGuru Gobind Singh

Birth:

• He was born on December 22 in Patna in the year 1666.
• His birth anniversary is observed as Guru Gobind Singh Jayanti every year in accordance with the lunar calendar.
• He was a poet, spiritual leader, philosopher, warrior and writer.

10th Guru:

• He was the tenth Guru of the Sikhs.

Khalsa Panth:

• He was the founder of the Khalsa Panth.
• He also founded the Sikh warrior community called Khalsa in 1699.
• He became a Sikh guru at the age of nine, after the death of his father Guru Tegh Bahadur.
• His father was executed by Aurangzeb.

The correct answer is Nanak Singh.

Key PointsThe poem ‘Khooni Vaisakhi’:

• It was written by acclaimed Punjabi writer Nanak Singh on the Jallianwala Bagh massacre.
• Which was banned by the British after its publication in 1920.
• The poem was a scathing critique of the British Raj.
• Singh was present at Jallianwala Bagh on April 13, 1919.
• He was 22 years old at the time.
• As the British troops opened fire on the unarmed gathering protesting against the Rowlatt Act.
• After going through the traumatic experience.
• He proceeded to write “Khooni Vaisakhi”.
• A long poem that narrates the political events in the run-up to the massacre.

Additional InformationNanak Singh:

• He was born to a poor Punjabi Hindu family in the Jhelum district of Pakistan as 'Hans Raj'.
• He later changed his name to Nanak Singh after adopting Sikhism.
• Singh started to write devotional songs, encouraging Sikhs to join the Gurdwara Reform Movement.
• In 1918, he published his first book Satguru Mehma.

Gulzar:

• Sampooran Singh Kalra, known professionally as Gulzar.
• He is an Indian Urdu poet, lyricist, author, screenwriter, and film director known for his works in Hindi cinema.
• He is regarded as one of greatest Urdu poets of this era.

Surjit Patar:

• He hails from village Pattar Kalan in Jalandhar district from where he got his surname.
• He graduated from Randhir College, Kapurthala and then went on to get a Master's degree from Punjabi University, Patiala.
• Among his works of poetry are "Hawa ਵਿਚ Likhe Harf" (Words written in the Air), Birkh Arz Kare (Thus Spake the Tree).