Hard shifting of gears is due to
A. Leakage of oil from gear box
B. Worn out splines on the main shaft
C. High speed
D. Over loading
Select an option to see the answer and solution.
In which among the following gearing, the greater ratio may be implied?
A. Bevel gearing
B. Spur gearing
C. Helical gearing
D. Worm gearing
Select an option to see the answer and solution.
The type of commercial vehicle which connects tractor to the trailer by a fifth wheel coupling is called
A. 6 × 5
B. 8 × 5
C. Rigid
D. Articulated
Select an option to see the answer and solution.
Which of the following is used to implement gear changes in the gear unit of an automatic transmission?
A. Synchronizer
B. Planetary gear
C. Magnetic clutch
D. Hydraulic multi plate clutch
Select an option to see the answer and solution.
Flat belts running over a pulley forms
A. A closed pair
B. An open pair
C. A screw pair
D. A spherical pair
Select an option to see the answer and solution.
What is the speed ratio of top shift position?
A. 3.589
B. 2.166
C. 0.999
D. None
Select an option to see the answer and solution.
The four arms of the spider which connect two yokes of the universal joint are called-
A. Trunion
B. Joint to joint
C. Socket joint
D. Flange
Select an option to see the answer and solution.
What is the gear ratio of top shift position?
A. 30 27
B. 12 43
C. 20 87
D. 12 80
Select an option to see the answer and solution.
The universal joints in use is-
A. Cross type universal
B. Ball or trunion universal joint
C. Constant velocity type universal joint
D. All are correct
Select an option to see the answer and solution.
A torque converter multiplies torque when the stator is free wheeling
A. True
B. False
C. Both A and B
D. None of these
Select an option to see the answer and solution.
Flywheels are used in
1. Bicycles
2. Starting motor
3. Gear boxes
A. 1 alone is correct
B. 3 alone is correct
C. 1 and 3 are correct
D. All are correct
Select an option to see the answer and solution.
Jockey pulley is used with
A. Cross belt drive
B. Open belt drive
C. Quarter twist drive
D. None of these
Select an option to see the answer and solution.
The purpose of synchromesh mechanism is to synchronize the speed of the shaft and the gear to be selected so that the change in gears can be performed smoothly.
Select an option to see the answer and solution.
The component of the torque converter that allows multiplication of torque is the
A. Turbine
B. Pump impeller
C. Freewheel
D. Stator
Select an option to see the answer and solution.
Which one of the following drives is used for transmitting power without slip?
A. Belt drives
B. Rope drives
C. Cone pulleys
D. Chain drives
Select an option to see the answer and solution.
Which type of key is used for mounting shifting gears in gear boxes?
A. Saddle key
B. Flat key
C. Square key
D. Splines
Select an option to see the answer and solution.
The central gear of an epicyclic gear set is called as
A. Sun gear
B. Ring gear
C. Planet gear
D. None of these
Select an option to see the answer and solution.
The oil flow in the torus of a torque converter is of
A. Spiral and vortex type
B. Steady, uniform and laminar types
C. Vortex, rotary and spiral types
D. None of the above
Select an option to see the answer and solution.
What is the shape of universal joint?
A. X-shaped
B. Y-shaped
C. Z-shaped
D. L-shaped
Select an option to see the answer and solution.
Automobile gears are generally made of
A. Cost iron
B. Mild steel
C. Wrought iron
D. Carbon crone manganese steel
Select an option to see the answer and solution.