Question 1

In case of spur gears the flank of the tooth is

Accepted Answer

A) The surface of the top of the tooth 
B) The part of the tooth surface lying below the pitch surface 
C) The curve forming face and flank 
D) Radius that connects in the root circle to the profile of the tooth 
E) The width of the gear tooth measured axially along the pitch surface 
A) The surface of the top of the tooth 
B) The part of the tooth surface lying below the pitch surface 
C) The curve forming face and flank 
D) Radius that connects in the root circle to the profile of the tooth 
E) The width of the gear tooth measured axially along the pitch surface B

Question 2

Creep in belts is due to

Accepted Answer

A) Plasticity of belt material 
B) Elasticity of belt material 
C) Plastic deformation of belt material due to constant use 
D) Differential elougation of belt due to difference in tension on two sides of a pulley 
E) Elongation of belt due to tension 
A) Plasticity of belt material 
B) Elasticity of belt material 
C) Plastic deformation of belt material due to constant use 
D) Differential elougation of belt due to difference in tension on two sides of a pulley 
E) Elongation of belt due to tension D

Question 3

The rectilinear motion of a piston is converted into rotary motion by

Accepted Answer

A) Cross-head 
B) Piston pin 
C) Connecting rod 
D) Crank 
E) Piston rod 
A) Cross-head 
B) Piston pin 
C) Connecting rod 
D) Crank 
E) Piston rod C

Question 4

In case of an elliptical trammel

Accepted Answer

A) One pair turns and three pairs slide 
B) All four pairs slide 
C) Three pairs turn and one pair slides 
D) All four pairs turn 
E) Two pairs turn and two pairs slide 
A) One pair turns and three pairs slide 
B) All four pairs slide 
C) Three pairs turn and one pair slides 
D) All four pairs turn 
E) Two pairs turn and two pairs slide

Question 5

A swinging pendulum in its mid-position possesses

Accepted Answer

A) only the potential energy 
B) only the kinetic energy 
C) more kinetic energy and less potential energy 
D) None of the above 
E) None of the above 
A) only the potential energy 
B) only the kinetic energy 
C) more kinetic energy and less potential energy 
D) None of the above 
E) None of the above

Question 6

A 0.5 kg weight attached to a light spring elongates it 0.6 mm. The natural frequency of the system should be approximately

Accepted Answer

A) 6 Hz 
B) 26 Hz 
C) 36 Hz 
D) 32 Hz 
E) 16 Hz 
A) 6 Hz 
B) 26 Hz 
C) 36 Hz 
D) 32 Hz 
E) 16 Hz

Question 7

A piston and cylinder in a slider crank mechanism form a

Accepted Answer

A) Sliding pair 
B) Rolling pair 
C) Cylindrical pair 
D) Sliding pair 
E) Turning pair 
A) Sliding pair 
B) Rolling pair 
C) Cylindrical pair 
D) Sliding pair 
E) Turning pair

Question 8

In case of reciprocating engines the primary forces

Accepted Answer

A) Are fully balanced 
B) Remain unbalanced 
C) Are partially balanced 
D) Cannot be balanced 
E) None of the above 
A) Are fully balanced 
B) Remain unbalanced 
C) Are partially balanced 
D) Cannot be balanced 
E) None of the above

Question 9

The difference between a machine and a structure is

Accepted Answer

A) The machine serves to modify and transmit forces only whereas structures serve to modify and transmit mechanical work 
B) The machine serves to modify and transmit mechanical work whereas structures serve to modify and transmit forces only 
C) The relative motion exists between the parts of a structures whereas it does not exist in machines 
D) Structures are temporary constructions whereas machines are paramanent 
E) None of the above 
A) The machine serves to modify and transmit forces only whereas structures serve to modify and transmit mechanical work 
B) The machine serves to modify and transmit mechanical work whereas structures serve to modify and transmit forces only 
C) The relative motion exists between the parts of a structures whereas it does not exist in machines 
D) Structures are temporary constructions whereas machines are paramanent 
E) None of the above

Question 10

The number of links in a pantograph is equal to

Accepted Answer

A) 3 
B) 4 
C) 5 
D) 7 
E) 6 
A) 3 
B) 4 
C) 5 
D) 7 
E) 6

Question 11

A vibrating system with unity as damping factor will be

Accepted Answer

A) Free from vibrations 
B) Damped to 1% of critical speed 
C) Damped to safe limits 
D) Partly damped 
E) Critically damped 
A) Free from vibrations 
B) Damped to 1% of critical speed 
C) Damped to safe limits 
D) Partly damped 
E) Critically damped

Question 12

When the two elements of a pair are kept in contact with the help of a spring, the pair is known as

Accepted Answer

A) A lower pair 
B) a higher pair 
C) a closed pair 
D) an unclosed pair 
E) None of the above 
A) A lower pair 
B) a higher pair 
C) a closed pair 
D) an unclosed pair 
E) None of the above

Question 13

Module is expressed in

Accepted Answer

A) mm 
B) mm/mm 
C) mm/No. of teeth 
D) Dimensionless 
E) None of the above 
A) mm 
B) mm/mm 
C) mm/No. of teeth 
D) Dimensionless 
E) None of the above

Question 14

A slider crank chain consists of

Accepted Answer

A) One turning and two sliding pairs 
B) Two turning and one sliding pair 
C) Three turning and one sliding pairs 
D) One turning and one sliding pair 
E) Two turning and two aliding pairs 
A) One turning and two sliding pairs 
B) Two turning and one sliding pair 
C) Three turning and one sliding pairs 
D) One turning and one sliding pair 
E) Two turning and two aliding pairs

Question 15

In case of reciprocating engine mechanism

Accepted Answer

A) The primary and secondary forces have same direction 
B) The primary and secondary forces have same amplitude 
C) The ratio of magnitude of primary forces of secondary forces is 2 
D) The primary force has twoce the frequency of secondary force 
E) None of the above 
A) The primary and secondary forces have same direction 
B) The primary and secondary forces have same amplitude 
C) The ratio of magnitude of primary forces of secondary forces is 2 
D) The primary force has twoce the frequency of secondary force 
E) None of the above

Question 16

Which one of the following is a transmission type dynamometer?

Accepted Answer

A) Prony brake 
B) Rope brake 
C) Hydraulic dynamometer 
D) Electric generator types 
E) None of the above 
A) Prony brake 
B) Rope brake 
C) Hydraulic dynamometer 
D) Electric generator types 
E) None of the above

Question 17

At node of the shaft

Accepted Answer

A) The vibrations are inimum 
B) The vibrations are maximum 
C) The vibrations are average 
D) The vibrations are zero 
E) None of the above 
A) The vibrations are inimum 
B) The vibrations are maximum 
C) The vibrations are average 
D) The vibrations are zero 
E) None of the above

Question 18

In a well greased ball bearing the coefficient of friction may be in the range

Accepted Answer

A) 0.45 to 0.60 
B) 0.25 to 0.45 
C) 0.60 to 0.70 
D) 0.70 to 0.80 
E) 0.1 to 0.25 
A) 0.45 to 0.60 
B) 0.25 to 0.45 
C) 0.60 to 0.70 
D) 0.70 to 0.80 
E) 0.1 to 0.25

Question 19

According to the law of gearing

Accepted Answer

A) Clearance should be minimum 0.15 mm 
B) Teeth should be cycloidal type 
C) Common normal at the point of contact always passes through a fixed point (pitch point) on the line joining the centres of rotation 
D) The gears whould be cut with the cutter having same module 
E) Teeth should be involute type 
A) Clearance should be minimum 0.15 mm 
B) Teeth should be cycloidal type 
C) Common normal at the point of contact always passes through a fixed point (pitch point) on the line joining the centres of rotation 
D) The gears whould be cut with the cutter having same module 
E) Teeth should be involute type

Question 20

In case of lower pairs

Accepted Answer

A) There is surface contact between the two elements while in the motion 
B) There is line contact between the two elements while in the motion 
C) There is point contact between the two elements while is motion 
D) The contact is only at lower end of the two elements while in motion 
E) None of the above 
A) There is surface contact between the two elements while in the motion 
B) There is line contact between the two elements while in the motion 
C) There is point contact between the two elements while is motion 
D) The contact is only at lower end of the two elements while in motion 
E) None of the above

In case of spur gears the flank of the tooth is

Creep in belts is due to

The rectilinear motion of a piston is converted into rotary motion by

In case of an elliptical trammel

A swinging pendulum in its mid-position possesses

A 0.5 kg weight attached to a light spring elongates it 0.6 mm. The natural frequency of the system should be approximately

A piston and cylinder in a slider crank mechanism form a

In case of reciprocating engines the primary forces

The difference between a machine and a structure is

The number of links in a pantograph is equal to

A vibrating system with unity as damping factor will be

When the two elements of a pair are kept in contact with the help of a spring, the pair is known as

Module is expressed in

A slider crank chain consists of

In case of reciprocating engine mechanism

Which one of the following is a transmission type dynamometer?

At node of the shaft

In a well greased ball bearing the coefficient of friction may be in the range

According to the law of gearing

In case of lower pairs

Mechanical Engineering Concepts

Mechanical Engineering Shafts, Belts, Gears, and Governors

Mechanical Engineering: Balancing, Cam Profiles, Dynamometers, Pulleys, Gears

Mechanical Engineering: Speed Ratios, Gears, Vibrations, Governors

Mechanisms and Kinematics: Gears, Belts, and Linkages

Mechanical Engineering: Higher Pairs, Kinematic Chains, Vibrating Bodies

Mechanical Engineering: Cam Size, Transmission Losses, Kleins Construction

Mechanical Engineering Gears, Mechanisms, and Drives

Mechanical Engineering: Gears, Linkages

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Exam 5: Mechanical Engineering: V-Belts, Gears, Chains

In case of spur gears the flank of the tooth is

Creep in belts is due to

The rectilinear motion of a piston is converted into rotary motion by

In case of an elliptical trammel

A swinging pendulum in its mid-position possesses

A 0.5 kg weight attached to a light spring elongates it 0.6 mm. The natural frequency of the system should be approximately

A piston and cylinder in a slider crank mechanism form a

In case of reciprocating engines the primary forces

The difference between a machine and a structure is

The number of links in a pantograph is equal to

A vibrating system with unity as damping factor will be

When the two elements of a pair are kept in contact with the help of a spring, the pair is known as

Module is expressed in

A slider crank chain consists of

In case of reciprocating engine mechanism

Which one of the following is a transmission type dynamometer?

At node of the shaft

In a well greased ball bearing the coefficient of friction may be in the range

According to the law of gearing

In case of lower pairs

Mechanical Engineering Concepts

Mechanical Engineering Shafts, Belts, Gears, and Governors

Mechanical Engineering: Balancing, Cam Profiles, Dynamometers, Pulleys, Gears

Mechanical Engineering: Speed Ratios, Gears, Vibrations, Governors

Mechanisms and Kinematics: Gears, Belts, and Linkages

Mechanical Engineering: Higher Pairs, Kinematic Chains, Vibrating Bodies

Mechanical Engineering: Cam Size, Transmission Losses, Kleins Construction

Mechanical Engineering Gears, Mechanisms, and Drives

Mechanical Engineering: Gears, Linkages

Filters