Related Questions

Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.
A Forging
B Cold rolling
C Hot rolling
D Casting
Whirling speed of the shaft is the speed at which
A Shaft tends to vibrate in longitudinal direction
B Torsional vibrations occur
C Shaft tends to vibrate vigorously in transverse direction
D Combination of transverse and longitudinal vibration occurs
It is required to connect two parallel shafts, the distance between whose axes is small and variable. The shafts are coupled by
A Universal joint
B Knuckle joint
C Oldham's coupling
D Flexible coupling
Passive Voice of ‘Someone pulled the bull violently’?
A The bull had been pulled violently by someone
B The bull had been pulled violently
C The bull was pulled violently
D The bull was to be pulled violent by someone
If a group of students enter your room and abuse you and behave violently with you, at that time how you would control your emotions?
A You will react in a similar fashion and try to assault them physically
B First, you will try to pacify their emotions and then ask politely about their behaviour
C You will feel ashamed among your teachers community
D You will report the case to the principal with recommendation of punitive measures
Which of the following metals reacts violently with water ?
A Mercury
B Sodium
C Calcium
D Magnesium
Acetylene should never be conveyed through __________ pipe, as it forms an unstable compound that dissociates violently at the slightest shock.
A Stainless steel
B Copper
C Aluminium
D Brass
The driving and driven shafts connected by a Hooke's joint will have equal speeds, if
A cosθ = sinα
B sinθ = ± tanα
C tanθ = ± cosα
D cotθ = cosα
When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as
A Doppler effect
B Beats
C Resonance
D Echo
A and B go cycling in the same direction with speeds of 6 km /hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively . What is the speeds of the car?
A 22 km/hr
B 33 km/hr
C 66 km/hr
D 44 km/hr

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