Question is ⇒ Examine the following statements <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">Pneumatic systems are fire proof.</li><li style="padding-top:10px;">Pneumatic systems are explosion proof.</li><li style="padding-top:10px;">Hydraulic systems are explosion proof.</li><li style="padding-top:10px;">Hydraulic systems are fire proof.</li></ol> Which of the above statements are correct?, Options are ⇒ (A) 1 only, (B) 1 and 2 only, (C) 1 2, 3, 4, (D) 2, 3, 4 only, (E) , Leave your comments or Download question paper.

Question is ⇒ Examine the following statements <ol style="list-style-type: decimal; padding-bottom:10px;"><li style="padding-top:10px;">Pneumatic systems are fire proof.</li><li style="padding-top:10px;">Pneumatic systems are explosion proof.</li><li style="padding-top:10px;">Hydraulic systems are explosion proof.</li><li style="padding-top:10px;">Hydraulic systems are fire proof.</li></ol> Which of the above statements are correct?, Options are ⇒ (A) 1 only, (B) 1 and 2 only, (C) 1 2, 3, 4, (D) 2, 3, 4 only, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Examine the following statements Pneumatic systems are fire proof. Pneumatic systems are explosion proof. Hydraulic systems are explosion proof. Hydraulic systems are fire proof. Which of the above statements are correct?
A.	1 only [Wrong Answer]
B.	1 and 2 only [Correct Answer]
C.	1 2, 3, 4 [Wrong Answer]
D.	2, 3, 4 only [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ Consider the following:

Distortion
Gain
Bias stabilization
Sensitivity
Frequency response

Which of these properties of the power amplifier one should concentrate upon while designing a good power amplifier circuit?
1, 2 and 3
1, 3 and 5
2, 3 and 4
4 and 5

⇒ An ideal op-amp requires
zero input offset voltage
low input offset voltage
high input offset voltage
infinite input offset voltage

⇒ A radio frequency signal contains the following three frequencie
Push pull amplifier
Wideband amplifier
Audio frequency amplifier
Tuned voltage amplifier

⇒ In equally tampered scale, frequency of each tone equals the frequency of lower adjacent tone multiplied by
(2)^1/7
(2)^1/12
(2)^1/6
(2)^1/5

⇒ A transmitter serial current contains
carrier frequencies
audio frequencies
radio frequencies
none of the above

⇒ Figure shows the feedback network of one of the very popular types of sinusoidal oscillators. Which one is t
Weinbridge oscillator
Hartley oscillator
Colpitt's oscillator
R-C phase shift oscillator

⇒ When Schrodinger equation is applied to the motion of electron in the field of protons, the physically acceptable solutions for the wave function exist for quantum number which are
2
3
4
5

⇒ A static induction thyristor
is a majority carrier device
is a minority carrier device
either a majority carrier or minority carrier device
has a total number of 2 leads

⇒ When a communication satellite passes into Earth's shadow, its temperature drops to about __________ ° K.
273
243
170
123

⇒ An electron shell corresponding to principal quantum number n can contain a maximum of
n² electrons
2n² electrons
2n electron
n³ electron

⇒ Which of the following is best suited for parity checking and parity generation?
AND, OR, NOT gates
XOR, Exclusive NOR gate
NAND gates
NOR gates

⇒ Consider the common emitter amplifier shown below with the following circuit parameters: β = 100, g_m = 0.3861 A/V, r₀ = ∞ r_p = 259 Ω, R_s = 1 kΩ, R_B = 93 kΩ, R_C = 250 Ω, R_L = 1 kW, C₁ = ∞ and C₂ = 4.
258 Ω
1258 Ω
93 kΩ
∞

⇒ Which memory is available in all technologies?
PROM
EEPROM
ROM
EPROM

⇒ Which of the following does not characterize a ferromagnetic material?
Coercivity
Permeability
Permittivity
Reluctance

⇒ In 8085 microprocessor, which of the following interrupts has the lowest priority?
RST 5.5
RST 7.5
TRAP
INTR

⇒ In the circuit of figure, the switch is closed at t = 0 with i_L (0) = 0 and V_C (0) = 0. In the steady state n_c equ
100 v
0 v
∞
- 100 v

⇒ Class C operation finds application in
RF power amplifiers
frequency multipliers
both (a) and (b)
neither (a) nor (b)

⇒ At 0 K, silicon and germanium behave like monoatomic crystals.
TRUE
FALSE

⇒ Thevenin's theorem is used to find current in a branch of a network. It is now desired to find current in another branch of the network
the same Thevenin's circuit can be used
the same Thevenin's circuit with some modification can be used
it is necessary to find new Thevenin's circuit
either (b) or (c)

⇒ Consider the following types of distortions in diode detectors

Distortion is caused due to the reason that dc and ac load impedances are unequal
Distortion is caused because ac load impedance has a reactive component at high audio frequencies
Audio frequency diode current is less than dc current

Which of the above are true?
1, 2 and 3
1 and 2
1 and 3
2 and 3

⇒ In Java it is possible to have

An array of integers
An array of string objects
An array of arrays
An array on integer and strings

Which of the above are correct?
All
1, 2 and 3 only
1 and 2 only
1, 3 and 4 only

⇒ Find R_{AB2 Ω
1.5 Ω
3 Ω
None of the above}

⇒ The unit of magnetic flux density is
farad/metre
ohm/metre
tesla
ampere/metre

⇒ The power dissipated per gate
is constant at all frequencies
increases with frequency
decreases with frequency
may increase or decrease with frequency

⇒ A 7477 decoder drives
seven-segment display
nickel tape
relays
diode matrix

⇒ The constant magnitude of G(s) plane are
a family of straight horizontal lines
a family of straight inclined lines with positive slope
a family of straight inclined lines with negative slope
a family of circles

⇒ A full wave rectifier circuit using centre tapped transformer, the input frequency 50 Hz. The frequency of output is
100 Hz
50 Hz
25 Hz
none of the above

⇒ A full wave diode rectifier using centre tapped transformer has diodes with forward resistance of 50 ohms each. The load resistance of 50 ohms each. The load resistance is also 50 ohms. The voltage regulation is
0.2
0.5
1
2

⇒

Match the following:

	List I		List II
A.	Firm ware	1.	Converts program in high level language to machine language
B.	Compiler	2.	Converts assembly language program into machine language
C.	Assembler	3.	Software embedded in hardware
D.	Virtual addressing	4.	Grouping information between various memories

A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1
A-3, B-4, C-1, D-2
A-3, B-1, C-2, D-4

⇒ The modulus of counter in the given figur
1
2
3
4