Mechanical Engineering Mcqs

Medium specific speea of turbine implies it is___________________?

(A) propeller turbine

(B) Francis turbine

(C) impulse turbine

(D) any one of the above

(D) none of the above

Submitted By: Ali Uppal


The specific speed of turbine is defined as the speed of a unit___________________?

(A) of such a size that it delivers unit dis-charge at unit head

(B) of such a size that it delivers unit dis-charge at unit power

(C) of such a size that it requires unit power per unit head

(D) of such a size that it produces unit horse power with unit head

(D) none of the above

Submitted By: Ali Uppal


A turbine pump is basically a centrifugal pump equipped additionally with_________________?

(A) adjustable blades

(B) backward curved blades

(C) vaned diffusion casing

(D) inlet guide blades

(D) totally submerged operation facility

Submitted By: Ali Uppal


In reaction turbine, draft tube is used_____________________?

(A) to transport water downstream without eddies

(B) to convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section

(C) for safety of turbine

(D) to increase flow rate

(D) none of the above

Submitted By: Ali Uppal


Isotopes of same elements have___________________?

(A) same atomic number and different masses

(B) same chemical properties but different atomic numbers

(C) different masses and different atomic numbers

(D) different chemical properties and same atomic numbers

(D) same chemical properties and same atomic numbers

Submitted By: Ali Uppal


The efficiency of a nuclear power plant in comparsion to a conventional thermal power plant is________________?

(A) same

(B) more

(C) less

(D) may be less or mote depending on size

(D) unpredictable

Submitted By: Ali Uppal


Which of the following nuclear reactor does not need a heat exchanger for generation of steam____________________?

(A) gas cooled

(B) liquid metal cooled

(C) pressurised water

(D) boiling water

(D) none of the above

Submitted By: Ali Uppal


Fast breeder reactor uses___________________?

(A) boiler

(B) direct cycle of coolant system

(C) double circuit system of coolant cycle

(D) multi pass system

(D) single circuit system

Submitted By: Ali Uppal


Breeder reactor has a conversion ratio of_____________________?

(A) unity

(B) more than unity

(C) less than unity

(D) zero

(D) infinity

Submitted By: Ali Uppal


One gram of uranium will produce energy equivalent to approximately____________________?

(A) 1 tonne of high grade coal

(B) 4.5 tonnes of high grade coal

(C) 10 tonnes of high grade coal

(D) 100 tonnes of high grade coal

(D) 1000 tonnes of high grade coal

Submitted By: Ali Uppal