Search
.Management Sciences
Category: Mechanical Engineering Mcqs
In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called_____________?
A. creeping
B. yielding
C. breaking
D. plasticity
E. none of the above
For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred_________________?
A. centrifugal
B. axial flow
C. reciprocating
D. mixed flow
E. none of the above
In a tensile test, near the elastic limit zone, the______________?
A. tensile strain increases more quickly
B. tensile strain decreases more quickly
C. tensile strain increases in proportion to the stress
D. tensile strain decreases in proportion to the stress
E. tensile strain remains constant
The units of kinematic viscosity are____________________?
A. metres2 per sec
B. kg sec/metre
C. newton-sec per metre
D. newton-sec per metre
E. none of the above
The flow in which each liquid particle has a definite path and their paths do not cross each other is called__________________?
A. one dimensional flow
B. uniform flow
C. steady flow
D. turbulent flow
E. streamline flow
A 4-stroke diesel engine needs about following amount of air_________________?
A. 75 cc per min. per h.p.
B. 750 cc per min. per h.p.
C. 7500 cc per min. per h.p.
D. 75000 cc per min. per h.p.
E. 750000 cc per min. per h.p
The designation M 33 x 2 of a bolt means___________________?
A. metric threads of 33 nos in 2 cm.
B. metric threads with cross-section of 33 mm
C. metric threads of 33 mm outside diameter and 2 mm pitch
D. bolt of 33 mm nominal diameter having 2 threads per cm
E. none of the above
If a material expands freely due to heating it will develop ____________________?
A. thermal stresses
B. tensile stress
C. bending
D. compressive stress
E. no stress
Auto-ignition temperature is____________________?
A. minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
B. temperature at which it solidifies or congeals
C. that at which it catches fire without external aid
D. indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off
E. indicated by 50% distillation temperature
When heat is transferred form hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by __________________?
A. conduction
B. convection
C. radiation
D. conduction and convection
E. convection and radiation
Recent Comments