Entri Career Fest- Up to 50% Off on In-demand Courses ✦ 12,000+ Government Jobs Secured ✦ 3,900+ Private Job Placements ✦ 4.9 ⭐️ Google Play Store Rating✦ +++

Get Ahead with Our Exam Q&A

Explore our extensive collection of questions and answers to enhance your learning experience and prepare for exams effectively

In nuclear reactors controlled reaction takes place. When the number of neutrons causing fission in one generation exactly equals the number of neutrons causing fission in next stage, the reactor is called critical reactor.

Thermal power plants use steam at superheated conditions.
In nuclear plants, the steam is at saturated conditions and at a lower pressure due to design and safety limitations.
Therefore the correct option is B.

A moderator is a material used in a nuclear reactor to slow down the neutrons produced from fission. By slowing the neutrons down the probability of a neutron interacting with Uranium-235 nuclei is greatly increased thereby maintaining the chain reaction.
Other moderators include Heavy Water, Beryllium.
Boron is used to absorb neutrons to control the chain reaction during nuclear fission. It is a control rod.Control rods are used in nuclear reactors to control the fission rate of uranium and plutonium.
Fluid used to remove heat in a nuclear reactor- Coolant.

Fast breeder reactor which use fast (i.e. unmoderated) neutrons to breed, fissile plutonium and possibly higher transuranics nuclear fuels from fertile uranium-238.

The composition of raw materials in portland cement are as follows
Lime 60-65%
Silica 17-25%
Alumina 3-8%
Iron oxides 0.5-6%
Also trace amount of magnesia,soda, potash and sulphur trioxide

Compressive strength of cement mortar is generally expressed as MPa.
28 days strength is referred as compressive strength.
For 43 grade , compressive strenth= 43MPa

A stuffing box is an assembly which is used to house a gland seal. It is used to prevent leakage of fluid, such as water or steam, between sliding or turning parts of machine elements.

An impulse turbine is a turbine that is driven by high velocity (K.E) jets of water or steam from a nozzle directed on to vanes or buckets attached to a wheel.
The impulse turbine is the simplest type of turbine.
It consists of a group of nozzles followed by a row of blades.
The gas is expanded in the nozzle, converting the high thermal energy into kinetic energy.

Francis turbine is an axial flow reaction turbine working in steam.

It is rate of heat input required for producing unit work output (1 kW).

Get Expert Advice for Free: Register for Your Free Consultation Now!

Full Name

Phone Number

Select Language

Select Course

[honeypot honeypot-100]