Mock Practice Test Mechanical - Set 05

Mechanical Mock Test - Set 05

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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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Set 05

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01. In spot welding, the distance between the nearest edge of the plate and centre of weld should be equal to
     (A) d
     (B) 1.5d
     (C) 3d
     (D) 6d
     Answer: Option B

02. A bolt is designed on the basis of __________ with a large factor of safety.
     (A) Direct tensile stress
     (B) Direct compressive stress
     (C) Direct bending stress
     (D) Direct shear stress
     Answer: Option A

03. Cut-off governing of steam engines is a method of controlling the engine output by varying
     (A) Volume of intake steam
     (B) Pressure of intake steam
     (C) Temperature of intake steam
     (D) All of these
     Answer: Option A

04. Which of the following property of air does not increase with rise in temperature?
     (A) Thermal conductivity
     (B) Thermal diffusivity
     (C) Density
     (D) Dynamic viscosity
     Answer: Option: C

05. A hydraulic intensifier normally consists of
     (A) Two cylinders, two rams and a storage device
     (B) A cylinder and a ram
     (C) Two coaxial rams and two cylinders
     (D) A cylinder, a piston, storage tank and control valve
     Answer: Option C

06. The pressure at a point in a fluid will not be same in all the directions when the fluid is
     (A) Moving
     (B) Viscous
     (C) Viscous and static
     (D) Viscous and moving
     Answer: Option D

07. In drilling operation, the metal is removed by
     (A) Shearing
     (B) Extrusion
     (C) Shearing and extrusion
     (D) Shearing and compression
     Answer: Option C

08. The rim of the flywheel is subjected to,
     (A) Direct tensile stress and bending stress
     (B) Torsional shear stress and bending stress
     (C) Direct shear stress and bending stress
     (D) Compressive stress and bending stress
     Answer: Option A

09. Metals are good conductors of heat because
     (A) Their atoms collide frequently
     (B) Their atoms are relatively far apart
     (C) They contain free electrons
     (D) They have high density
     Answer: Option A

10. A jaw clutch is
     (A) Friction clutch
     (B) Disk clutch
     (C) Positive action clutch
     (D) Cone clutch
     Answer: Option C

11. The maximum shear stress in a thin cylindrical shell subjected to internal pressure p is
     (A) pd/t
     (B) pd/2t
     (C) pd/4t
     (D) pd/8t
     Answer: Option D

12. A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as
     (A) Otto cycle
     (B) Stirling cycle
     (C) Carnot cycle
     (D) Diesel cycle
     Answer: Option D

13. Transmission angle is the angle between
     (A) Input link and coupler
     (B) Input link and fixed link
     (C) Output link and coupler
     (D) Output link and fixed link
     Answer: Option C

14. Reheating in a multistage expansion gas turbine ________ compressor work.
     (A) Has no effect on
     (B) Decreases
     (C) Increases
     (D) None of these
     Answer: Option B

15. D' Alembert's principle is used for
     (A) Reducing the problem of kinetics to equivalent statics problem
     (B) Determining stresses in the truss
     (C) Stability of floating bodies
     (D) Designing safe structures
     Answer: Option A

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