Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

 If slenderness ratio=45, which mode of failure will dominate?

Bucking of column means

 If nominal diameter of the rope is 20mm, then pitch of the groove is around?

 Which type of rope drum is preferred?

Rope operating over steel sheaves wear slowly than those used in conjunction with cast iron sheaves.

 Small sheaves are preferred over large sheaves on what parameters?

 In design of wire ropes, bending stress is converted into an equivalent bending load which is given by [d= diameter of individual wire and D= diameter of sheave].

The wire rope is subjected to

Diameteral pitch is 5, then calculate module of the gear.

roduct of diametric pitch and circular pitch is?

Contact ratio is always

Velocity ratio and transmission ratio are the same thing.

Pressure angle is _____ in case of cycloidal teeth.

 Cycloidal teeth consist of

Which of the following are true about plasticity?

A_______ bearing supports the load acting along the axis of the shaft.

 Which of the following are functions of bearings?

Active and inactive, both types of coils support the load although both don’t participate in spring action.

 If uncompressed length of spring is 40mm and number of coils 10mm, then pitch of coil is?

Pitch of coil is defined as axial distance in compressed state of the coil.

None of the listed

If the spring is compressed completely and the adjacent coils touch each other,the the length of spring is called as?

If spring index=2.5, what can be concluded about stresses in the wire?

Multi leaf springs are not recommended for automobile and rail road suspensions.

The longest leaf in a leaf spring is called centre leaf.

 The helix angle is very small about 2⁰. The spring is open coiled spring.

Which of the following function can the spring perform?

Which type of threads is recommended for fluctuating loads?

Which threads have greater resistance to unscrewing?

Coarse threads have helix angle _____ fine threads.

Crests and roots of the threads may lead to leakage in fluid tight threads if flattened or rounded to a circular arc.

Which of the following help in accomplishing the locking?

 If the length of the shank is doubled, then strain energy absorbed by shank

The shock absorbing capacity of bolts can be increased by

The shock absorbing capacity of bolt can be increased by making the shank diameter ________ the root diameter

Resilience is defined as the property of material to absorb energy when deformed _________ and to release this energy when unloaded.

 Self-locking takes place when

 If the load itself begin to the screw and descend down, unless a restraining torque is applied then the condition is termed as

 If nominal diameter of screw thread=50mm and pitch=10mm then the mean diameter of the screw thread will be?

Tr 40 x 14(P 7), here 14 indicates

Which of the following are true for buttress threads?

V threads are highly recommended for fastening as well as power transmission purpose.

Depending upon the holding arrangement, power screws operate in how many different arrangements.

There is sufficient plastic deformation prior to fatigue failure, which gives a warning well in advance.

The phenomenon of decreased resistance of the materials to fluctuating stresses is the main characteristic of _____ failure.
 

If the mean stress value for a sinusoidal stress function is zero, then this type of stress falls in which category?

 The stress represented by cos (t) belongs to which category?

The stress represented by sin (t) + 4 belongs to which category?

 The stress represented by sin (t) + 2 belongs to which category?

The stress represented by sin (t) + 1 belongs to which category?