Engineering Mechanics | Mechanical Engineering

If a body is thrown upwards, then the gravitational acceleration is taken as zero.

Byadmin September 14, 2022

Question: If a body is thrown upwards, then the gravitational acceleration is taken as zero.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.

Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

In open cycle turbo-jet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the

Question: In open cycle turbo-jet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
[A].

thrust and range of aircraft
[B].
efficiency of the engine
[C].
both (a) and (b)
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More In open cycle turbo-jet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
Engineering Mechanics | Mechanical Engineering

If the body falls freely under gravity, then the gravitational acceleration is taken as

Question: If the body falls freely under gravity, then the gravitational acceleration is taken as
[A].

+8.9 m/s2
[B].
-8.9 m/s2
[C].
+9.8 m/s2
[D].
-9.8 m/s2

Answer: Option C

Explanation:

No answer description available for this question.

Read More If the body falls freely under gravity, then the gravitational acceleration is taken as
Automobile Engineering | Mechanical Engineering

The cam shaft in an engine is always mounted

Question: The cam shaft in an engine is always mounted
[A].

parallel to the crankshaft
[B].
perpendicular to the crankshaft
[C].
inclined to the crankshaft
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More The cam shaft in an engine is always mounted
Engineering Materials | Mechanical Engineering

The alloy, mainly used for corrosion resistance in stainless steels is

Question: The alloy, mainly used for corrosion resistance in stainless steels is
[A].

silicon
[B].
manganese
[C].
carbon
[D].
chromium

Answer: Option D

Explanation:

No answer description available for this question.

Read More The alloy, mainly used for corrosion resistance in stainless steels is
Hydraulics and Fluid Mechanics | Mechanical Engineering

A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

Question: A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
[A].

0.46
[B].
0.64
[C].
0.78
[D].
0.87

Answer: Option B

Explanation:

No answer description available for this question.

Read More A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is
Engineering Mechanics

Tangent of angle of friction is equal to__________________?

Tangent of angle of friction is equal to__________________?

A. kinetic friction
B. limiting friction
C. angle of repose
D. coefficient of friction
E. friction force

Read More Tangent of angle of friction is equal to__________________?

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