Basics in Manufacturing Engineering : Practice MCQ Questions & Answers with Explanations

In general, we know that Effective teamwork yields high productivity which is a good indications of positive productivity goals.

A firm maximizes profit by operating where marginal revenue equals marginal cost. They use less of an input in producing more products to increse their profits.

Allowance of hole and shaft assembly is equal to the difference of maximum metal limit.

Minimum material limit of hole is largest diameter of hole. Maximum material limit of hole is smallest diameter of hole.

Minimum material limit of shaft is minimum diameter of shaft. Maximum material limit of shaft is maximum diameter of shaft.

Maximum material limit of hole is smallest diameter of hole. Minimum material limit of hole is largest diameter of hole.

Maximum material limit of shaft is maximum diameter of shaft. Minimum material limit of shaft is minimum diameter of shaft.

Minimum interference is the difference between size of smallest shaft and size of biggest hole. Maximum Interference is the difference between size of largest haft size and smallest hole size.

Interference fit. Maximum Interference is the difference between size of largest haft size and smallest hole size.

Maximum Interference is the difference between size of largest haft size and smallest hole size. Minimum interference is the difference between size of smallest shaft and size of biggest hole.

Maximum clearance is given by sum of size of biggest hole and smallest shaft. Minimum clearance is the difference between size of smallest hole and size of biggest shaft.

Minimum clearance is the difference between size of smallest hole and size of biggest shaft. Maximum clearance is given by sum of size of biggest hole and smallest shaft.

Tin is used for joining two insoluble materials such as iron and silver because it is soluble in both the parent material (i.e. silver and iron).

When two insoluble materials such as iron and silver are joined then heterogenous joining process is used.

Certain welding processes such as plasma arc welding, friction stir welding, laser beam welding, etc. can be performed in heterogenous mode.

Gas metal arc welding (GMAW), manual metal arc welding (MMAW), flux cored arc welding (FCAW), etc. always use consumable filler material and thus can be performed in homogenous mode.

In heterogenous joining process the filler material used is different as the parent material.

In homogenous joining process the filler material used is the same as the parent material.

Resistance welding is inherently autogenous as there is no convenient way to apply a filler material.

In autogenous welding process no filler material is added during joining, the filler material can be supplied by melting the base metal.