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In radial bearings, the load acts __________ to the axis of rotation.

A. Parallel

B. Perpendicular

C. Both A and B

D. None of these

Correct Answer :

B. Perpendicular


Related Questions

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4

The size of a cam depends upon

A. Base circle

B. Pitch circle

C. Prime circle

D. Pitch curve

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4

The temperature at which the new grains are formed in the metal is known as

A. Lower critical temperature

B. Upper critical temperature

C. Recrystallisation temperature

D. None of these

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4

When a belt drive is transmitting maximum power,

A. Effective tension is equal to centrifugal tension

B. Effective tension is half of centrifugal tension

C. Driving tension on slack side is equal to centrifugal tension

D. Driving tension on tight side is twice the centrifugal tension

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4

A column of length l is fixed at both ends. The equivalent length of the column is

A. l/2

B. l/√2

C. l

D. 2 l

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4

When bevel gears having equal teeth and equal pitch angles connect two shafts whose axes intersect at right angle, then they are known as

A. Angular bevel gears

B. Crown bevel gears

C. Internal bevel gears

D. Mitre gears

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4

A spring is used to

A. Measure forces

B. Apply forces

C. Store energy

D. All of these

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4

A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

A. Hollow saddle key

B. Hollow key

C. Soft key

D. None of these

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4

When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

A. Short bearing

B. Long bearing

C. Medium bearing

D. Square bearing

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4

Machine screws are

A. Similar to small size tap bolts except that a greater variety of shapes of heads are available

B. Slotted for a screw driver and generally used with a nut

C. Used to prevent relative motion between two parts

D. Similar to stud

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4

The dedendum circle diameter is equal to (where φ = Pressure angle)

A. Pitch circle diameter × cosφ

B. Addendum circle diameter × cosφ

C. Clearance circle diameter × cosφ

D. Pitch circle diameter × sinφ

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4

Pick up wrong statement. Fatigue strength can be increased by

A. Cold working

B. Shot peening

C. Grinding and lapping surface

D. Hot working

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4

The arms of the pulleys for flat belt drive have

A. Elliptical cross-section

B. Major axis in plane of rotation

C. Major axis twice the minor axis

D. All the three characteristics

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4

The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of 15 mm each. The allowable shearing load on the weldment per cm length of the weld is

A. 7.5 kN

B. 10.6 kN

C. 15 kN

D. 22.5 kN

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If a material fails below its yield point, failure would be due to

A. Straining

B. Fatigue

C. Creep

D. Sudden loading

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4

A connecting rod subjected to an axial load may buckle with

A. X-axis as neutral axis

B. Y-axis as neutral axis

C. X-axis or Y-axis as neutral axis

D. Z-axis

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4

In order to permit the thermal expansion/contraction of tubing, it should be

A. Crimped

B. Honed

C. Flared

D. Bent

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4

The resultant axial load on a bolt depends upon

A. External load applied

B. Initial tension due to tightening of the bolt

C. Relative elastic yielding of the bolt and the connected members

D. All of the above

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4

The included angle in unified of American National threads is

A. 60°

B. 55°

C. 47°

D. 29°

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4

In levers, leverage is the ratio of

A. Load lifted to the effort applied

B. Mechanical advantage to the velocity ratio

C. Load arm to the effort arm

D. Effort arm to the load arm

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4

Which is correct statement? Stress concentration in static loading is

A. Very serious in brittle materials and less serious in ductile materials

B. Very serious in ductile materials and less serious in brittle materials

C. Equally serious in both types of materials

D. Seriousness would depend on other factors

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4

Oil in journal bearing should be applied at the point where load is

A. Nil or lightest

B. Maximum

C. Average

D. Any one of the above

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4

When the bolt is very yielding as compared to the connected members, then the resultant load on the bolt will be equal to the

A. Initial tension

B. External load applied

C. Sum of the initial tension and external load applied

D. Initial tension or external load, whichever is greater

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4

When the belt is transmitting maximum power,

A. The tension in tight side is twice the centrifugal tension

B. The tension in slack side is equal to the centrifugal tension

C. The tension in tight side is thrice the centrifugal tension

D. None of the above

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4

The stress in the threaded part of the bolt will be __________ as compared to the shank.

A. Same

B. Higher

C. Lower

D. None of these

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4

For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

A. 4

B. 6

C. 8

D. 10

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4

The power transmitted by belt drive depends upon

A. Belt velocity

B. Initial belt tension

C. Arc of contact

D. All of the above

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4

If a bearing is designated by the number 305, it means that the bearing is of

A. Medium series whose bore is 5 mm

B. Medium series whose bore is 25 mm

C. Light series whose bore is 25 mm

D. Light series whose bore is 5 mm

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4

When two nonintersecting and non-coplanar shafts are connected by gears, the arrangement is known as

A. Spur gearing

B. Helical gearing

C. Bevel gearing

D. Spiral gearing

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4

Which of the following screw thread is used for power transmission in one direction only?

A. Square threads

B. Multiple threads

C. Acme threads

D. Buttress threads

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The fatigue life of a part can be improved by

A. Electroplating

B. Polishing

C. Coating

D. Shot peening