In motor vehicles, how is power transferred from the transmission gearbox to the differential axle_________________?
Show answer Hide answer
Answer: C. Hooke’s joint
Explanation
Hooke's joint transmits rotational power between intersecting shafts that form an angle. Automotive drive shafts require angular flexibility to accommodate rear axle suspension movement. The universal joint uses a spider cross configuration to connect yokes at an operating angle. Cardan joints or universal joints are standard mechanical devices for misaligned shaft power transmission. Single Hooke's joints introduce non-uniform output velocity when operating at an angle. Double universal joints are often paired in automotive driveshafts to cancel velocity fluctuations.
Rear-wheel drive vehicles rely heavily on propeller shafts equipped with universal joints. Industrial machinery uses universal joints to transmit torque between non-collinear rotating shafts. Proper lubrication of universal joints prevents premature wear under fluctuating dynamic loads. Bevel gears transmit power between intersecting shafts but change axis orientation directly. Knuckle joints connect links subjected to tension or compression in a single plane. Oldham's couplings connect parallel shafts with lateral misalignment rather than angular misalignment.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Referring to the earlier linkage problem, what is the minimum allowable length of the coupler__________________?
Show answer Hide answer
Answer: C. slightly more than 45 mm
Triangle inequality limits for linkage closure dictate the minimum allowable length of the coupler mechanism. For the given link dimensions, the minimum allowable coupler length is calculated as slightly more than 45 mm....
Q2. In a shaper machine mechanism, how is the Coriolis acceleration component evaluated_______________?
Show answer Hide answer
Answer: B. exist
A slider moving along a rotating slotted lever experiences combined rotation and translation simultaneously. This simultaneous motion creates the essential condition required for Coriolis acceleration to manifest. Mathem...
Q3. In simple harmonic motion, what is the phase relationship between the velocity vector and displacement vector _________________?
Show answer Hide answer
Answer: A. leads by 90°
In simple harmonic motion, velocity leads displacement by a phase angle of ninety degrees. Mathematical differentiation of a sinusoidal displacement equation yields a cosine velocity function. This derivative phase shift...
Q4. How is the cam angle defined in cam-follower systems_________________?
Show answer Hide answer
Answer: B. of rotation of the cam for a definite displacement of the follower
The cam angle for a specific follower movement is defined as the angle of rotation of the cam for that displacement. This angular measurement correlates directly with the timing of events during one complete revolution o...
Q5. What constitutes a mechanical mechanism____________________?
Show answer Hide answer
Answer: C. four links or more than four links
A single link cannot move relative to itself, and two or three links cannot form a closed loop. Four links represent the minimum number required to form a constrained planar kinematic chain. Additional links can be added...
Q6. What type of governor is commonly used in gramophone turntables for speed regulation_______________?
Show answer Hide answer
Answer: C. Pickering governor
The Pickering governor is a spring-loaded centrifugal governor designed for gramophone turntables. It regulates rotational speed accurately using flyweights restrained by calibrated hairsprings. This compact governing me...