Question 1

If spring index=2.5, what can be concluded about stresses in the wire?

Accepted Answer

A) they are high 
B) they are negligible 
C) they are moderate 
D) cannot be determined 
A) they are high 
B) they are negligible 
C) they are moderate 
D) cannot be determined A

Question 2

What is the amount of sea coal needed in cast irons for large green casting moulding sands?

Accepted Answer

A) 10% 
B) 15% 
C) 20% 
D) 25% 
A) 10% 
B) 15% 
C) 20% 
D) 25% A

Question 3

In order to find the maximum bending moment on the arms, it is assumed as a

Accepted Answer

A) simply supported beam carrying a uniformly distributed load over the arm 
B) fixed at both ends 
C) cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim 
D) none of the mentioned 
A) simply supported beam carrying a uniformly distributed load over the arm 
B) fixed at both ends 
C) cantilever beam fixed at the hub and carrying a concentrated load at the free end of the rim 
D) none of the mentioned C

Question 4

Compressed length is smaller than the solid length.

Accepted Answer

A) True 
 B)False

Question 5

The cross-section of the flywheel arms is usually

Accepted Answer

A) elliptical 
B) rectangular 
C) i-section 
D) l-section 
A) elliptical 
B) rectangular 
C) i-section 
D) l-section

Question 6

For bonding action of clays, what is the amount of water needed?

Accepted Answer

A) 1.5%-8% 
B) 3.5%-11% 
C) 4.5%-12% 
D) 5.5%-13% 
A) 1.5%-8% 
B) 3.5%-11% 
C) 4.5%-12% 
D) 5.5%-13%

Question 7

The helix angle is very small about 2?. The spring is open coiled spring.

Accepted Answer

A) yes 
B) it is closed coiled spring 
C) that small angle isn't possible 
D) none of the listed 
A) yes 
B) it is closed coiled spring 
C) that small angle isn't possible 
D) none of the listed

Question 8

How much should fuel oil be added to increase the moulding ability of sand?

Accepted Answer

A) 0.01% - 0.1% 
B) 0.02% - 0.2% 
C) 0.03% - 0.3% 
D) 0.04% - 0.4% 
A) 0.01% - 0.1% 
B) 0.02% - 0.2% 
C) 0.03% - 0.3% 
D) 0.04% - 0.4%

Question 9

Pitch maybe used up to what percent?

Accepted Answer

A) 1% 
B) 2% 
C) 3% 
D) 4% 
A) 1% 
B) 2% 
C) 3% 
D) 4%

Question 10

In which of the following bonding theory, water molecules break down to form H+ and OH- ions?

Accepted Answer

A) electrostatic bonding theory 
B) hot strength theory 
C) surface tension theory 
D) block and wedge theory 
A) electrostatic bonding theory 
B) hot strength theory 
C) surface tension theory 
D) block and wedge theory

Question 11

If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by?

Accepted Answer

A) none of the listed 
B) 27mm 
C) 24mm 
D) 21mm 
A) none of the listed 
B) 27mm 
C) 24mm 
D) 21mm

Question 12

Pitch of coil is defined as axial distance in compressed state of the coil.

Accepted Answer

A) yes 
B) it is measured in uncompressed state 
C) it is same in uncompressed or compressed state 
D) none of the listed 
A) yes 
B) it is measured in uncompressed state 
C) it is same in uncompressed or compressed state 
D) none of the listed

Question 13

Which of the following function can the spring perform?

Accepted Answer

A) store energy 
B) absorb shock 
C) measure force 
D) all of the mentioned 
A) store energy 
B) absorb shock 
C) measure force 
D) all of the mentioned

Question 14

A spring with index=15 is prone to buckling.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following increases the dry strength of the sand?

Accepted Answer

A) iron oxides 
B) fuel oils 
C) cereals 
D) dextrin and molasses 
A) iron oxides 
B) fuel oils 
C) cereals 
D) dextrin and molasses

Question 16

The maximum fluctuation of speed is the

Accepted Answer

A) difference of minimum fluctuation of speed and the mean speed 
B) difference of the maximum and minimum speeds 
C) sum of the maximum and minimum speeds 
D) variations of speed above and below the mean resisting torque line 
A) difference of minimum fluctuation of speed and the mean speed 
B) difference of the maximum and minimum speeds 
C) sum of the maximum and minimum speeds 
D) variations of speed above and below the mean resisting torque line

Question 17

Cereals improve flowability and lower collapsibility.

Accepted Answer

A) True 
 B)False

Question 18

The spring index is the ratio of wire diameter to mean coil diameter.

Accepted Answer

A) True 
 B)False

Question 19

The ratio of the maximum fluctuation of energy to the ……. is called coefficient of fluctuation of energy.

Accepted Answer

A) minimum fluctuation of energy 
B) workdone per cycle 
C) maximum fluctuation of energy 
D) none of the mentioned 
A) minimum fluctuation of energy 
B) workdone per cycle 
C) maximum fluctuation of energy 
D) none of the mentioned

Question 20

In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called

Accepted Answer

A) fluctuation of energy 
B) maximum fluctuation of energy 
C) coefficient of fluctuation of energy 
D) none of the mentioned 
A) fluctuation of energy 
B) maximum fluctuation of energy 
C) coefficient of fluctuation of energy 
D) none of the mentioned

If spring index=2.5, what can be concluded about stresses in the wire?

What is the amount of sea coal needed in cast irons for large green casting moulding sands?

In order to find the maximum bending moment on the arms, it is assumed as a

Compressed length is smaller than the solid length.

The cross-section of the flywheel arms is usually

For bonding action of clays, what is the amount of water needed?

The helix angle is very small about 2?. The spring is open coiled spring.

How much should fuel oil be added to increase the moulding ability of sand?

Pitch maybe used up to what percent?

In which of the following bonding theory, water molecules break down to form H+ and OH- ions?

If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by?

Pitch of coil is defined as axial distance in compressed state of the coil.

Which of the following function can the spring perform?

A spring with index=15 is prone to buckling.

Which of the following increases the dry strength of the sand?

The maximum fluctuation of speed is the

Cereals improve flowability and lower collapsibility.

The spring index is the ratio of wire diameter to mean coil diameter.

The ratio of the maximum fluctuation of energy to the ……. is called coefficient of fluctuation of energy.

In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called

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Exam 4: Bonding Theory, Springs, and Flywheels

If spring index=2.5, what can be concluded about stresses in the wire?

What is the amount of sea coal needed in cast irons for large green casting moulding sands?

In order to find the maximum bending moment on the arms, it is assumed as a

Compressed length is smaller than the solid length.

The cross-section of the flywheel arms is usually

For bonding action of clays, what is the amount of water needed?

The helix angle is very small about 2?. The spring is open coiled spring.

How much should fuel oil be added to increase the moulding ability of sand?

Pitch maybe used up to what percent?

In which of the following bonding theory, water molecules break down to form H+ and OH- ions?

If number of coils are 8 and wire diameter of spring 3mm, then solid length is given by?

Pitch of coil is defined as axial distance in compressed state of the coil.

Which of the following function can the spring perform?

A spring with index=15 is prone to buckling.

Which of the following increases the dry strength of the sand?

The maximum fluctuation of speed is the

Cereals improve flowability and lower collapsibility.

The spring index is the ratio of wire diameter to mean coil diameter.

The ratio of the maximum fluctuation of energy to the ……. is called coefficient of fluctuation of energy.

In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called

Mechanical Engineering

Engineering Design and Analysis

Joints and Joining Techniques

Mechanical Engineering Bearings and Gears

Mechanical Engineering Gears, Lubrication, Welding, Stress, and Design

Mechanical Engineering Shafts, Keys, and Joints

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

Filters