Mechanical Engineering CBT Mock Test - Set 12

Mechanical Mock Test - Set 12

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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. Lame's theory is associated with
     (A) Thin cylindrical shells
     (B) Thick cylindrical shells
     (C) Direct and bending stresses
     (D) None of these
     Answer: Option B

02. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
     (A) Neutral surface
     (B) Upper surface
     (C) Lower surface
     (D) None of these
     Answer: Option A

03. A leaf spring in automobiles is used
     (A) To apply forces
     (B) To measure forces
     (C) To absorb shocks
     (D) To store strain energy
     Answer: Option C

04. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.
     (A) More
     (B) Less
     (C) Equally
     (D) Unpredictable
     Answer: Option A

05. In a horizontal flat belt drive, it is customary to use
     (A) Bottom side of belt as slack side
     (B) Top side of belt as slack side
     (C) Idler pulley
     (D) None of the above
     Answer: Option B

06. Heat transfer by radiation mainly depends upon
     (A) Its temperature
     (B) Nature of the body
     (C) Kind and extent of its surface
     (D) All of the above
     Answer: Option: D

07. The following property is most important for material used for gas turbine blade
     (A) Toughness
     (B) Fatigue
     (C) Creep
     (D) Corrosion resistance
     Answer: Option C

08. The efficiency and work ratio of a simple gas turbine cycle are
     (A) Low
     (B) Very low
     (C) High
     (D) Very high
     Answer: Option B

09. Two pipe systems can be said to be equivalent, when the following quantities are same
     (A) Friction loss and flow
     (B) Length and diameter
     (C) Flow and length
     (D) Friction factor and diameter
     Answer: Option A

10. The flow ratio of Francis turbine is defined as the ratio of the
     (A) Velocity of flow at inlet to the theoretical jet velocity
     (B) Theoretical velocity of jet to the velocity of flow at inlet
     (C) Velocity of runner at inlet to the velocity of flow at inlet
     (D) None of the above
     Answer: Option A

11. The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks
     (A) 180° to each other
     (B) 90° to each other
     (C) 0° to each other
     (D) None of these
     Answer: Option B

12. The total number of instantaneous centres for a mechanism consisting of n links are
     (A) n/2
     (B) n
     (C) n - 1
     (D) n(n - 1)/2
     Answer: Option D

13. Taper roller bearing is used to take
     (A) Only radial load
     (B) Only axial load
     (C) Only torque
     (D) Both axial and radial loads
     Answer: Option D

14. Which is the correct statement?
     (A) Cold rolling produces stronger shafts than hot rolling
     (B) Hot rolling produces stronger shafts than cold rolling
     (C) Cold rolling and hot rolling produces equally strong shafts
     (D) Strength of shaft is independent of rolling processes
     Answer: Option A

15. The thermal stress in a bar is __________ proportional to the change in temperature.
     (A) Directly
     (B) Indirectly
     (C) Both A and B
     (D) None of these
     Answer: Option A

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