Mechanical Engineering CBT Mock Test - Set 22

Mechanical Mock Test - Set 22

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Today, all competitive exams are Multiple Choice Questions(MCQ) based examination system and the main factor is to answer each question in a prescribed time. So, practice as much as possible before the original test you are going to face.

Total number of Multiple Choice Question (MCQ) is 15 and time allotted for each question is 30 seconds. After the allotted time, the question will be marked as un-attempt.

Test Conducted by: ObjectiveBooks.com

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 Next Mock Tests:

Set 01

Set 02

Set 03

Set 04

Set 05

Set 06

Set 07

Set 08

Set 09

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

Set 22

Set 23

Set 24

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View Test Result:

01. Which of the following property is desirable in parts subjected to shock and impact loads?
     (A) Strength
     (B) Stiffness
     (C) Brittleness
     (D) Toughness
     Answer: Option D

02. The total energy line lies over the hydraulic gradient line by an amount equal to the
     (A) Pressure head
     (B) Velocity head
     (C) Pressure head + velocity head
     (D) Pressure head - velocity head
     Answer: Option B

03. The allowed time for a job equals standard time plus
     (A) Policy allowance
     (B) Interference allowance
     (C) Process allowance
     (D) Learning allowance
     Answer: Option A

04. The behaviour of a perfect gas, undergoing any change in the variables which control physical properties, is governed by
     (A) Boyle's law
     (B) Charles' law
     (C) Gay-Lussac law
     (D) All of these
     Answer: Option D

05. A vapour absorption refrigerator uses __________ as a refrigerant.
     (A) Water
     (B) Ammonia
     (C) Freon
     (D) Aqua-ammonia
     Answer: Option D

06. The Rankine's formula holds good for
     (A) Short columns
     (B) Long columns
     (C) Both short and long columns
     (D) Weak columns
     Answer: Option C

07. In Vickers hardness testing, the pyramid indentor apex is
     (A) 40°
     (B) 122°
     (C) 136°
     (D) 152°
     Answer: Option C

08. Shaft coupling is used in machinery to
     (A) Introduce mechanical flexibility
     (B) Introduce protection against over loads
     (C) Reduce the transmission of shock loads
     (D) All of these
     Answer: Option D

09. For simple harmonic motion of the of follower, a cosine curve represents
     (A) Displacement diagram
     (B) Velocity diagram
     (C) Acceleration diagram
     (D) All of the above
     Answer: Option C

10. The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
     (A) Compression ratio
     (B) Work ratio
     (C) Pressure ratio
     (D) None of these
     Answer: Option B

11. Switches and relays should be shown in this position with no operating force or applied energy:
     (A) Normal
     (B) Closed
     (C) Offset
     (D) Application
     Answer: Option A

12. Thermal conductivity of water in general with rise in temperature
     (A) Increases
     (B) Decreases
     (C) Remain constant
     (D) May increase or decrease depending on temperature
     Answer: Option D

13. For harder alloy steel, the point angle of the drill is kept
     (A) Equal to 118°
     (B) Less than 118°
     (C) More than 118°
     (D) Any one of these
     Answer: Option C

14. If a refractory contains high content of silicon, it means refractory is
     (A) Acidic
     (B) Basic
     (C) Neutral
     (D) Brittle
     Answer: Option C

15. The axial flow compressor is preferred in aircraft gas turbines because of
     (A) Low frontal area
     (B) Higher thrust
     (C) High pressure rise
     (D) None of these
     Answer: Option A

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