Related Questions

when demand for factory's products is high . more money is spent at the factory for safety precautions and machinery maintenance than when demand is low. thus the average number of on -the-job accidents per employee each month should be lower during perids when demand is high than when demand is low and less money is available for safety precautions and machinery maintenance .when demand for its products is high, casts the most serious doubt on the conclusion drawn above?
A Employees demand for higher wages than they do at other times.
B Authority hires new workers but lacks the time to rain them properly.
C Employees are less likely to lose their jobs than are at other times.
D Authority sponsors a monthly safety award for each division in the factory.
When demand for a factory's products is high, more money is spent at the factory for safety precautions and machinery maintenance than demand is low. Thus the average number of on-the-job accidents per employee each month should be bower during periods when demand is high than when demand is low and less money is available for safety precautions and machinery maintenance. Which of the following,if true about a factory when demand for its product is high casts the most serious doubt on the conclusion drawn above?
A Its employees ask for higher wages than they do at other times.
B Its management hires new workers but lacks the time to train them properly.
C Its employees are less likely to lose their jobs than they are at other times.
D Its management sponsors a monthly safety award for each division in the factory.
The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.
A One-third
B Two-third
C Double
D Three times
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.
A Equal to
B Less than
C Greater than
D None of these
In multi V-belt transmission, if one of the belt is broken, we have to change the
A Broken belt
B Broken belt and its adjacent belts
C All the belts
D There is no need of changing any one as remaining belts can take care of transmission of load
A pulley and belt in a belt drive form a
A Cylindrical pair
B Turning pair
C Rolling pair
D Sliding pair
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to
A Reduce vibration
B Reduce slip
C Ensure uniform loading
D Ensure proper alignment
The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length)
A $$\frac{{\text{T}}}{3}$$
B $$\frac{{{\text{Tg}}}}{3}$$
C $$\sqrt {\frac{{\text{T}}}{{3{\text{m}}}}} $$
D $$\sqrt {\frac{{3{\text{m}}}}{{\text{T}}}} $$
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to
A Reduce vibration
B Reduce slip
C Ensure uniform loading
D Ensure proper alignment
The ratio of driving tensions in V-belt drives is __________ flat belt drives.
A Equal to
B sin$$\,\alpha $$ times more than
C sin$$\,\alpha $$ times less than
D cosec$$\,\alpha $$ times more than

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