Question 1

The bending stress is_______

Accepted Answer

A) directly proportional to the distance of layer from the neutral layer 
B) inversely proportional to the distance of layer from the neutral layer 
C) directly proportional to the neutral layer 
D) does not depend on the distance of layer from the neutral layer 
A) directly proportional to the distance of layer from the neutral layer 
B) inversely proportional to the distance of layer from the neutral layer 
C) directly proportional to the neutral layer 
D) does not depend on the distance of layer from the neutral layer A

Question 2

Zerol gears are straight bevel gears with zero spiral angle.

Accepted Answer

A) True 
 B)False  False

Question 3

Which of the following are functions of bearings?

Accepted Answer

A) ensure free rotation of shaft with minimum friction 
B) holding shaft in a correct position 
C) transmit the force of the shaft to the frame 
D) all of the listed 
A) ensure free rotation of shaft with minimum friction 
B) holding shaft in a correct position 
C) transmit the force of the shaft to the frame 
D) all of the listed D

Question 4

When two hyperboloids are rotated, the resulting motion is

Accepted Answer

A) sliding 
B) turning 
C) combination of turning and sliding 
D) rotary 
A) sliding 
B) turning 
C) combination of turning and sliding 
D) rotary

Question 5

Which of the following can be the factor of safety for a dead load?

Accepted Answer

A) 6 
B) 2 
C) 4 
D) 7 
A) 6 
B) 2 
C) 4 
D) 7

Question 6

Which of the following is measure of stiffness?

Accepted Answer

A) modulus of elasticity 
B) modulus of plasticity 
C) resilience 
D) toughness 
A) modulus of elasticity 
B) modulus of plasticity 
C) resilience 
D) toughness

Question 7

Crown gears having a pitch angle of 90?

Accepted Answer

A) =90 
B) 90 
D) none of the listed 
A) =90 
B) 90 
D) none of the listed

Question 8

While designing shaft on the basis of torsional rigidity, angle of twist is given by?

Accepted Answer

A) ml/gd? 
B) 584ml/gd? 
C) 292 ml/gd? 
D) none of the mentioned 
A) ml/gd? 
B) 584ml/gd? 
C) 292 ml/gd? 
D) none of the mentioned

Question 9

Hypoid gears are based on surfaces that are paraboloids of revolution.

Accepted Answer

A) True 
 B)False

Question 10

Zerol gears give lesser contact ratio.

Accepted Answer

A) true 
B) no, larger contact ratio 
C) zero contact 
D) none of the listed 
A) true 
B) no, larger contact ratio 
C) zero contact 
D) none of the listed

Question 11

If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load.

Accepted Answer

A) 97.3 
B) 95.8 
C) 100.6 
D) none of the mentioned 
A) 97.3 
B) 95.8 
C) 100.6 
D) none of the mentioned

Question 12

For which of the following design factor of safety the design will work properly?

Accepted Answer

A) 0.1 
B) 1 
C) 2 
D) 0.9 
A) 0.1 
B) 1 
C) 2 
D) 0.9

Question 13

A single transverse weld is preferred over

Accepted Answer

A) True 
 B)False

Question 14

The fundamental equation for viscous flow is given by ?pbh?/6µl where symbols have their usual meanings.

Accepted Answer

A) 6 is to be replaced by 3 
B) 6 is to be replaced by 12 
C) 6 is to be replaced by 9 
D) 6 is to be replaced by 15 
A) 6 is to be replaced by 3 
B) 6 is to be replaced by 12 
C) 6 is to be replaced by 9 
D) 6 is to be replaced by 15

Question 15

Which of the following facts are true for resilience?

Accepted Answer

A) ability of material to absorb energy when deformed elastically 
B) ability to retain deformation under the application of load or after removal of load 
C) ability of material to absorb energy when deformed plastically 
D) none of the mentioned 
A) ability of material to absorb energy when deformed elastically 
B) ability to retain deformation under the application of load or after removal of load 
C) ability of material to absorb energy when deformed plastically 
D) none of the mentioned

Question 16

Which of the following are characteristics of skew bevel gears?

Accepted Answer

A) straight teeth 
B) mounted on parallel shafts 
C) mounted on intersecting shafts 
D) all of the mentioned 
A) straight teeth 
B) mounted on parallel shafts 
C) mounted on intersecting shafts 
D) all of the mentioned

Question 17

Shot blasting process improves the endurance limit of the component.

Accepted Answer

A) True 
 B)False

Question 18

The critical value at which crack extension occurs is called

Accepted Answer

A) stress intensity factor 
B) toughness 
C) fracture toughness 
D) none of the mentioned 
A) stress intensity factor 
B) toughness 
C) fracture toughness 
D) none of the mentioned

Question 19

What is the expression of the bending equation?

Accepted Answer

A) m/i = ?/y = e/r 
B) m/r = ?/y = e/i 
C) m/y = ?/r = e/i 
D) m/i = ?/r = e/y 
A) m/i = ?/y = e/r 
B) m/r = ?/y = e/i 
C) m/y = ?/r = e/i 
D) m/i = ?/r = e/y

Question 20

While designing a forging, the profile is selected such that the fibrous lines are parallel to the tensile forces and perpendicular to shear forces.

Accepted Answer

A) True 
 B)False

The bending stress is_______

Zerol gears are straight bevel gears with zero spiral angle.

Which of the following are functions of bearings?

When two hyperboloids are rotated, the resulting motion is

Which of the following can be the factor of safety for a dead load?

Which of the following is measure of stiffness?

Crown gears having a pitch angle of 90?

While designing shaft on the basis of torsional rigidity, angle of twist is given by?

Hypoid gears are based on surfaces that are paraboloids of revolution.

Zerol gears give lesser contact ratio.

If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load.

For which of the following design factor of safety the design will work properly?

A single transverse weld is preferred over

The fundamental equation for viscous flow is given by ?pbh?/6µl where symbols have their usual meanings.

Which of the following facts are true for resilience?

Which of the following are characteristics of skew bevel gears?

Shot blasting process improves the endurance limit of the component.

The critical value at which crack extension occurs is called

What is the expression of the bending equation?

While designing a forging, the profile is selected such that the fibrous lines are parallel to the tensile forces and perpendicular to shear forces.

Mechanical Engineering

Engineering Design and Analysis

Joints and Joining Techniques

Bonding Theory, Springs, and Flywheels

Mechanical Engineering Bearings and Gears

Mechanical Engineering Shafts, Keys, and Joints

Mechanical Engineering : Punching Vs Drilling, Casting Sands, Leaf Springs

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Exam 6: Mechanical Engineering Gears, Lubrication, Welding, Stress, and Design

The bending stress is_______

Zerol gears are straight bevel gears with zero spiral angle.

Which of the following are functions of bearings?

When two hyperboloids are rotated, the resulting motion is

Which of the following can be the factor of safety for a dead load?

Which of the following is measure of stiffness?

Crown gears having a pitch angle of 90?

While designing shaft on the basis of torsional rigidity, angle of twist is given by?

Hypoid gears are based on surfaces that are paraboloids of revolution.

Zerol gears give lesser contact ratio.

If for a curved beam of trapezoidal cross section, radius of neutral axis is 89.1816mm and radius of centroidal axis is 100mm, then find the bending stress at inner fibre whose radius is 50mm. Area of cross section of beam is 7200mm² and the beam is loaded with 100kN of load.

For which of the following design factor of safety the design will work properly?

A single transverse weld is preferred over

The fundamental equation for viscous flow is given by ?pbh?/6µl where symbols have their usual meanings.

Which of the following facts are true for resilience?

Which of the following are characteristics of skew bevel gears?

Shot blasting process improves the endurance limit of the component.

The critical value at which crack extension occurs is called

What is the expression of the bending equation?

While designing a forging, the profile is selected such that the fibrous lines are parallel to the tensile forces and perpendicular to shear forces.

Mechanical Engineering

Engineering Design and Analysis

Joints and Joining Techniques

Bonding Theory, Springs, and Flywheels

Mechanical Engineering Bearings and Gears

Mechanical Engineering Shafts, Keys, and Joints

Mechanical Engineering : Punching Vs Drilling, Casting Sands, Leaf Springs

Filters