Home
Current Affairs January 2024

What is the correct answer?

4

The efficiency and work ratio of a simple gas turbine cycle are

A. Very low

B. Low

C. High

D. Very high

Correct Answer :

A. Very low


Related Questions

What is the correct answer?

4

The hyperbolic process is governed by

A. Boyle's law

B. Charles' law

C. Gay-Lussac law

D. Avogadro's law

What is the correct answer?

4

Which of the following has the highest calorific value?

A. Peat

B. Lignite

C. Bituminous coal

D. Anthracite coal

What is the correct answer?

4

When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum shear stress is

A. x/2) + (1/2) × √(σx² + 4 τ²xy)

B. x/2) - (1/2) × √(σx² + 4 τ²xy)

C. x/2) + (1/2) × √(σx² - 4 τ²xy)

D. (1/2) × √(σx² + 4 τ²xy)

What is the correct answer?

4

When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.

A. Zero

B. 1/5

C. 4/5

D. 1

What is the correct answer?

4

One kg of carbon monoxide requires _______kg of oxygen to produce 11/7 kg of carbon dioxide gas.

A. 11/7

B. 9/7

C. 4/7

D. All of the above

What is the correct answer?

4

The compression ratio for petrol engines is

A. 3 to 6

B. 5 to 8

C. 15 to 20

D. 20 to 30

What is the correct answer?

4

The ratio of root mean square velocity to average velocity of gas molecules at a particular temperature is

A. 0.086

B. 1.086

C. 1.086

D. 4.086

What is the correct answer?

4

The atomic mass of nitrogen is __________ oxygen.

A. Equal to

B. Less than

C. More than

D. None of these

What is the correct answer?

4

When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called

A. Zeroth law of thermodynamics

B. First law of thermodynamics

C. Second law of thermodynamics

D. Kelvin Planck's law

What is the correct answer?

4

In order to know whether a column is long or short, we must know its

A. Ultimate shear stress of the column

B. Factor of safety

C. Torque resisting capacity

D. Slenderness ratio

What is the correct answer?

4

The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

A. Same

B. Double

C. Half

D. Four times

What is the correct answer?

4

Strain is defined as the ratio of

A. Change in volume to original volume

B. Change in length to original length

C. Change in cross-sectional area to original cross-sectional area

D. Any one of the above

What is the correct answer?

4

Diesel cycle consists of __________ processes.

A. Two constant volume and two isentropic

B. Two constant pressure and two isentropic

C. Two constant volume and two isothermal

D. One constant pressure, one constant volume and two isentropic

What is the correct answer?

4

The main cause for the irreversibility is

A. Mechanical and fluid friction

B. Unrestricted expansion

C. Heat transfer with a finite temperature difference

D. All of the above

What is the correct answer?

4

A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

A. In the middle

B. At the tip below the load

C. At the support

D. Anywhere

What is the correct answer?

4

An adiabatic process is one in which

A. No heat enters or leaves the gas

B. The temperature of the gas changes

C. The change in internal energy is equal to the mechanical workdone

D. All of the above

What is the correct answer?

4

A riveted joint in which the number otrivets decrease from innermost to outer most rows is called

A. Chain riveted joint

B. Diamond riveted joint

C. Crisscross riveted joint

D. Zigzag riveted joint

What is the correct answer?

4

When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

A. Top layer

B. Bottom layer

C. Neutral axis

D. Every cross-section

What is the correct answer?

4

The radius of the Mohrs circle in the given figure is equal to

A. Sum of two principal stresses

B. Difference of two principal stresses

C. Half the sum of two principal stresses

D. Half the difference of two principal stresses

What is the correct answer?

4

In the below figure, the stress corresponding to point D is

A. Yield point stress

B. Breaking stress

C. Ultimate stress

D. Elastic limit

What is the correct answer?

4

Formula based on IS codes is based on

A. Straight line formula

B. Eulers formula

C. Rankines formula

D. Secant formula

What is the correct answer?

4

The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

A. Q1 - 2 = dU + W1 - 2

B. Q1 - 2 = dU - W1 - 2

C. Q1 - 2 = dU/W1 - 2

D. Q1 - 2 = dU × W1 - 2

What is the correct answer?

4

The maximum tangential stress in a thick cylindrical shell is always _________ the internal pressure acting on the shell.

A. Equal to

B. Less than

C. Greater than

D. None of these

What is the correct answer?

4

Which of the following gas has the highest calorific value?

A. Coal gas

B. Producer gas

C. Mond gas

D. Blast furnace gas

What is the correct answer?

4

The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

A. Kelvin

B. Joule

C. Clausis

D. Gay-Lussac

What is the correct answer?

4

The fuel mostly used in cement industry and in metallurgical processes is

A. Wood charcoal

B. Bituminous coke

C. Pulverised coal

D. Coke

What is the correct answer?

4

A tri-atomic molecule consists of __________ atoms.

A. One

B. Two

C. Three

D. Four

What is the correct answer?

4

The change in the unit volume of a material under tension with increase in its Poisson's ratio will

A. Increase

B. Decrease

C. Remain same

D. Increase initially and then decrease

What is the correct answer?

4

In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

A. More

B. Less

C. Same

D. More/less depending on composition

What is the correct answer?

4

A concentrated load is one which

A. Acts at a point on a beam

B. Spreads non-uniformly over the whole length of a beam

C. Spreads uniformly over the whole length of a beam

D. Varies uniformly over the whole length of a beam